Top 5 Problems Chevy Avalanche Truck 1st Generation 2002-06

[@1AAuto]

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[@punker4Real]

forgot about the brake lines basically all the GMT800 series was equipped with faulty brake lines( the hose expands instead of doing the braking ).. GM clearly knew about the issue but did not fix it tell the GMT900 series

[@hardycoffman6896]

Haha I’ve had all of them but the Impact sensors on my ‘04!

[@bigmizzymike]

@@punker4Real 🎯💯 I came here just to make the same comment. All of the 00-06 chevy trucks had brake line issues.

[@dougsmith1005]

This doesn't seem like a "Top 5 list" at all, this is just the 5 issues this truck had. Any online forum will give you much better insight to common issues with vehicle and which have a high potential for issues. *The comments have more info* This is as click-baity of a title as you can get

[@pnu504horaceakatimekeeper3]

Question I have a 2006 Chevy Avalanche 1500 it makes a weird noise when I press on the gas when I accelerate do anyone know what that problem maybe or can anyone tell me

[@TheGlobalTravelr]

I’ve had my 06 Avalanche since birth n she just rolled over 200K n aside from minor aches, she’s has been maintenance free. I’m still running the original brakes. One issue I’m beginning to experience is “check stability” message. Great overview! And yes I do treat her like a lady.

[@ZukiChrome]

I have a 2002 Avalanche I bought as a demo model with 8000 miles on it.....I still have it now....390,000+ miles on it.....and I'd hop in and drive from Georgia to California tonight if I needed to. I've had other vehicles during this time.....but, the Avalanche is the one I've always trusted to get me there and back.....And I still pull a 24' pull-behind camper to Florida several times a year with it. The only big repair is that the transmission was replaced at around 250,000 miles. I've also had it repainted the original color and replaced all the oxidized headlights. Awesome vehicle!!

[@SingerAuto1967]

I’ve had about 200 vehicles…..my 02 Avalanche was prob the one I miss the most. Sold it with 365k miles and it was still running great

[@1AAuto]

+A Man his Toys And his thoughts Thanks for checking us out. Shop for high quality auto parts on 1AAuto.com: 1aau.to/m/Shop-1AAuto-c

[@sparkyoutdoors1521]

I got one with over 300k miles it’s my favorite vehicle I owned

[@lovellmills7959]

My 2003 has 291K just had too finally rebuild the transmission! Original lasted 289K! Best car i ever owned

[@michaelhyatt6780]

My 02 I bought brand new has 320 k .. Not going to lie .... It's not so pretty and starting to rust bad but turn the key and it goes... All original drive train.. Love that Chevy..

[@tranfamily35]

A proud original owner of the 2005 Avalanche 1500 with 45k mi. A true garage queen :D

[@scottlong4278]

I have a 2002 Avalanche 2500 with the 8.1 liter. I'm the original owner and have 165,000 great miles on it. Being a skier and my daughter an elite level ski racer, we've driven to just about every ski area, resort in the western US and Canada. Has never let me down through white out blizzards, sub zero temps and scorching sun. Plastics started fading after a few years, I just call it "petina" and the tailgate would freeze up and make it a bear to close. Other than the normal wear and tear, (fuel pump, water pump and front end stuff) I'll probably be buried in it!

[@onemoremisfit]

I have the 2002 Avalanche 1500 Z-71 with the 5.3L, and that engine was under powered in a 6000lb truck, so I added a Whipple supercharger to make it pull a little more like that 8.1 of yours. And I've had mine thru some serious snow too. It never let me down except once when I headed out to work in the biggest snow we ever had, I got about 3/4 mile down my road toward the highway and the snow was so high the truck started to beach itself on the skid plates. So I put it in reverse and backed it home in my own wheel tracks.

[@quel3833]

I have had my 2004 Avalanche for over 10 years now. Bought it with 94k miles on it, and now I'm still driving it at 182k. Great truck despite the issues that come with it and every vehicle sold to mankind. It's either get the maintenance done by a mechanic or DIY. As far as the trim goes, I use olive oil on it to coat away the fade look. I know it's cheesy and temporary, but it has worked for me over the years.

[@The_Soup_Wizard]

What kind of issues if you don't mind me asking? I'm considering taking my dad's 05, the thing only has 82k on it.

[@onemoremisfit]

I have a 2002 Avalanche that I purchased new, I am the original sole owner, 126K miles. I just completed a full frame off restoration. The frame was actually replaced, I bought a new replacement part frame from GM. There was no saving the old frame because it completely rusted through. Rear bumper bar and trailer hitch also rusted out. Entire chassis was rebuilt, all new suspension parts. I repaired extensive rust on the body shell, including rebuilding the rear floor area under the midgate hinge mounts, repairing rust holes in LH side floor under the pedals and RH side upper firewall. Replaced the inner and outer rocker panels both sides. 3 of 4 doors required patching on the bottoms. Both front fenders, core support and hood replaced. Fist-sized rust hole at fuel door repaired. Top end rebuild on Whipple supercharged 5.3L engine. Original running transmission to be replaced soon. Original rear end got new seals, original running transfer case to get some love soon. And much more. $30K invested on parts and materials, all labor performed single-handedly by myself over the course of 3 years. Still not 100% finished but getting close and I do currently have it back on the road. With a 100% new chassis underneath, it drives like new. Never had any serious mechanical issues with the truck, pretty happy with it over 20 years, which is why it was worth it to me to save it before it rusted away. But I've had this truck ALL apart and had a few learning experiences along the way. I'm not a tech, just a DIY guy, but you can ask me anything.

[@onemoremisfit]

Want to restore your Avalanche cladding? Whatever you do, DO NOT TRY TO PAINT IT. That trick never works and you will ruin it. Read further for my real world experience: A good product I have used on my 2002 Avalanche cladding is G-techinq C4. I replaced all the door and bumper cladding with new GM replacements, and I even replaced the utility box covers (I bought the last NOS pair available from GM) but the sail panels and bridge panels were unavailable so I had to restore them. Also the running board covers had to be restored because they too are discontinued and unavailable. The G-techniq C4 did such an excellent job of restoring the badly faded and zebra striped sail panels that you can see no difference right next to the new utility box lids. The tonneau covers did not restore as convincingly but they still look 100% better and will pass when viewed from a distance. The running board covers turned out looking great, and amazingly still look good after a year of being stepped on. And that's the amazing thing about the C4 is its durability. It's over a year old, been washed and even stepped on and hasn't worn off yet. Now, they tell you right on the label that it is not permanent, but I am surprised at how durable it actually is. If you want to restore your Avalanche cladding, get this stuff. It's not cheap, about $50 for a 30ml bottle, and you'll probably need 2 bottles to do the whole truck, but it's good stuff.

[@gregwilson138]

DO NOT USE A HEAT GUN. I highly recommending either having them professionally sprayed or coated (linex or equivalent). The more economic route would be a plastic specific spray paint or bedliner style coating. The key is to take your time with the prep work if you do it yourself. Products such as Mothers Back to Black or Turtle Wax are very temporary and will last if your lucky a week or two. I would also say one of the problems specific to the Avalanche is the rear window bezel cracks and may allow water to enter the cab. Also the cladding (plastics) hold moisture. Depending on the climate this can lead to different severity levels of rust. Also the tonneau cover is not 100% waterproof. Good maintenance will help with drainage. Hope this helps. - An 04 cladded Avalanche Owner.

[@BubblyOne]

Love my 2004 issues aside and running great at 168,000. Bought mine used in 2016 with 124 thousand miles. Issues: three power windows stuck in down position over a 4 year period, tailgate won't lock because of the loose parts as mentioned in video, fueling has to be hand held due to pump constantly shutting off. That said this is a great vehicle.

[@JoinerNotFound]

2002, bought at 92k miles and just rolled 160k miles and still chugging. Barely any issues. Love my Avalanche

[@dukecgsd1526]

I have a 2004 Southern comfort addition. 228,000 miles I finally showed it some love with new platinum spark plugs, eddlbrok wires... Wire literally where brittle but it ran every day and never gave me a problem. One of the best and most reliable vehicles I've owned and it hauls feed for my livestock and is put to work. Its no garage queen

[@aydengriffeth225]

I'm getting a 03 avalanche for my first car next year, we have it already, but I will definitely save this video in case I have any problems. Thanks.

[@flyurway]

Yep! Have had my '06 since it was 2 years old, have had all those problems. Still the nicest vehicle I've ever owned, pushing 200K and I'm not about to give it up!

[@1AAuto]

+Andork Kuomo Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@missanthropy5808]

Bought a 2003 a few months ago. Had 4 of these 5 problems. I replaced the tailgate with a metal one(Amazon) my handle was plastic and broken and it locks now. Still working on the rest but I LOVE this truck.

[@1AAuto]

+@missanthropy5808 Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@victorjohnson4000]

Used the Trim Restorer on my 05 Avalanche and it works GREAT! Thanks for the tip. GREAT TRUCK! Mine has 300k and looks and running strong.

[@Robey1Kenobi]

Only problem is after you get the truck washed the oils run onto the truck body.

[@MrBakedDaily]

I just purchased a 2002 with 134k hope it works out right driven had been fine

[@2003trackman]

for restoring cladding..i just started using Flood* Penetrol ( paint section at Menards) on my bed panels. I scrubbed with Dawn* soap water with scrub brush and rinsed off. let dry completely. I wiped them down and let dry and then wiped down again. LOOKS GREAT ! Going to finish the truck tomorrow and see how long it last in Nov. and Dec. weather in S.East Missouri.

[@firstgoinpostal]

A heat gun Will absolutely destroy the plastics in the long term.

[@grimdadye]

I use mothers back to black aerosol, works fast and amazing

[@kevinlogozzo3952]

@@grimdadye how long does it last? I’ve found many don’t last past the first rain.

[@Reese2279]

@@kevinlogozzo3952 Correct Mothers Back to Black is crap (I’m In Louisiana, the rainiest state) Carworx Refinish Restorer works best.

[@JohnyKnox]

@@kevinlogozzo3952 it pulls oils from the plastic. It's not even that the look doesn't last, it legit destroys your plasit. Never use a heat gun. This guy is NOT a detailer.

[@SingerAuto1967]

Absolutely correct. Best option for long term is paint it

[@Uknown452]

I've got a 02 Avalanche Z71 with about 285000 miles and the only problems I've had Is low power but she still runs with no check engine light. Love my Chevy Avalanche

[@justinspeegle4668]

Low power? Like it will barley move with gas pedal all way down? What was the cause?

[@zacharytoungette5192]

Got an 04 z71 4x4 with 275000 and it runs like a champ. Prolly my favorite vehicle I’ve ever owned.

[@BohemianUplandsGarage]

Using the heat gun on the plastics is the worst suggestion and myth running over internet. Please don't ever do that! Not only that after 6 months it will look worse than before, but it is an irreversible process too 😟 Also, the sensors stuff might be worth mentioning, but please do not run into triagnosis by just replacing sensors depending on the trouble code. It will cost you more money in the end than having the real problem diagnosed properly.

[@onemoremisfit]

Also, do not paint the cladding! No matter how hard you try to sand and prep the plastic, ultimately the adhesion of the paint will fail and it will look horrible when the paint starts to peel off. And that mistake is also irreversible because the sanding and prep will permanently deface the finish of the plastic. The best route is to use a trim restorer even though it will wear off and need to be reapplied. A good product I have used on my 2002 Avalanche cladding is G-techinq C4. I replaced all the door and bumper cladding with new GM replacements, and I even replaced the utility box covers (I bought the last NOS pair available from GM) but the sail panels and bridge panels were unavailable so I had to restore them. Also the running board covers had to be restored because they too are discontinued and unavailable. The G-techniq C4 did such an excellent job of restoring the badly faded and zebra striped sail panels that you can see no difference right next to the new utility box lids. The tonneau covers did not restore as convincingly but they still look 100% better and will pass when viewed from a distance. The running board covers turned out looking great, and amazingly still look good after a year of being stepped on. And that's the amazing thing about the C4 is its durability. It's over a year old, been washed and even stepped on and hasn't worn off yet. Now, they tell you right on the label that it is not permanent, but I am surprised at how durable it actually is. If you want to restore your Avalanche cladding, get this stuff. It's not cheap, about $50 for a 30ml bottle, and you'll probably need 2 bottles to do the whole truck, but it's good stuff. On the front impact sensors for the airbag system, my 2002 only has one in the bottom center of the radiator support. Apparently they went to 2 front sensors in the later years.

[@kylemccaskie6997]

2003 ...230,000 and still going strong...love my Avalanche...pulled a travel trailer all over the northeast too

[@joshuahatton45]

I love first gen avalanches. One day I want to buy a 2500. Great video by the way! 👍

[@1AAuto]

+Joshua Hatton Thanks for checking us out!

[@amandamcmoney693]

I have one for sale right now and it has a 86000 miles on it Model number k15936

[@andrewhatton9963]

I think that you should buy one.

[@AutoBrawn]

The 2500s are sweet. Fuel mileage not so much lol

[@sixpackmudracing]

I have one broke the frame pulling a dump trailer. Now I have to rebuild the frame

[@thequadsquad4801]

Never use a heat gun or torch on the cladding you are pulling out the oil that is left in in now it will fade again but now it will crack and flake up

[@1AAuto]

+wesley's sport quad world Thanks for the tip! We'll pass this info along to our production team.

[@grimdadye]

Use mothers back to black in the aerosol can , its works fast and amazing

[@LATQueens]

@@grimdadye How long does that stuff last before the cladding starts to fade again?

[@tonyb7748]

I just picked up an 05 Z71 , this video covers the bases well with the issues I have to address. Instead of treating the plastics I plan to have them sanded and painted, the end result of rejuvenation of plastic is more fading so why bother? Awesome video though! Love the direct answers and the close shots of problem areas.

[@joevictor6116]

I have had 4/5 of these issues on my 06 av pushing 200k miles. Great video

[@claudiofagundes9502]

I had a 2002 Chevy Avalanche a few years back one of the best vehicles I've ever owned hands down in the end I had to get rid of it because the frame cracked was not properly care for before I bought it. Bought with 150k miles and got it to 225k Miles still ran great but the frame was bad those are common on these vehicles as well as Transmissions letting go two things worth mentioning. But even knowing that I'm checking one out tomorrow and if the frame looks good I'm buying it.

[@ChenagoOutdoors]

Just bought an 02 this week. Pick it up Monday can't wait. It's really clean and a southern truck so there's not a bunch of rust

[@whoyoulookingatabs1028]

did you buy it?

[@onemoremisfit]

I'm the original owner of an '02 and the frame rusted out, so I replaced it with a new frame I bought from GM. The reason why they rust out is because the wax dip is not protective on the outside. It is good to have the wax on the inside but it is not durable against abrasion and salt spray, so it wears off quickly on the outside. The new frame I purchased had the same wax dip, so I had to strip the outside and re-coat it with a very tough urethane coating. This was a HUGE job. I had the new frame on a rotisserie and it literally took 6 months to get it right because I initially had adhesion problems because every trace of wax has to be removed to get proper adhesion to the metal. But after some troubles I did get it done right. My new frame is tough enough to whack with a hammer and not chip the coating. If I had to do it again there are some things I learned but it is still a ridiculously difficult job. You have to really want to do it, and you will work your fingers to the bone scraping and solvent cleaning hundreds of tight pocketed areas. You won't be able to trust somebody else to do all that, because getting it right might mean stripping it and doing it all over again, and somebody else will just cover it up and pass it off to get paid every single time.

[@geraldrobinson1055]

Swapping the 5.3 to a 6.0 in my 02 avalanche 1500 was a Great move! Burning 93 octane no ethanol gives me 20 miles per gallon Very Satisfied with that👍

[@Uknown452]

Had my 02 for 10 years and it still runs great with little problems.

[@grimdadye]

Bought my 04 in 06 with 16,000 miles still going strong in NY winters too. Just hit 105,000

[@Neal_A_Tew]

I bought my 02 new in late 01. I've had her almost 20 years now. I love it!

[@billwalsh388]

Same here, had mine 14 yrs.

[@jerrylvega8446]

Thank you for your time to make this video. I have a 2002 Avalanche, no rust practically brand new 58,000miles. Has the tail gate issue I have to make sure I slam it shut. Always garaged. Other than that ,no problems yet.

[@1AAuto]

+Jerryl Vega Thanks for checking us out. Shop for high quality auto parts on 1AAuto.com: 1aau.to/m/Shop-1AAuto-c

[@peytonyoung5382]

How much you want for it?

[@djamison9r]

I owned a 2002 Avalanche until 2018. I had the fading issue and the tailgate issue. None of the other 5, but many many other issues...

[@1AAuto]

+David K Thanks for the feedback!

[@oldmanmtb1443]

What was the other problems

[@albertmueller6616]

Oh yea, Well while these may be somewhat "kind of basic stuff" fixes I want everyone as well as 1A Auto to know that this short 5 min. video on the most COMMON problems with this model just gave me 2 not one but TWO fixes to repair the Avalanche I was considering purchasing. I think I will buy it now. Thanks so much A1

[@1AAuto]

+Albert Mueller Thanks for checking us out! 1AAuto.com

[@gabrielcornejo238]

I bought a used 1st gen avalanche it was better than I expected you have the best of suv and pick up at the same time. The only issue I had is the button Seek/Volume on the steering wheel malfunctioning but other than that is keep going.

[@snffrosty7450]

i have a 2002 avalanche with 300k miles still runs perfect never any major issues the only problems that it has had is the power window motor they go out each window motor has been replaced 3 time each

[@scancomputer1234]

The transfer case has a production defect, the oil pump bracket chews on the housing of the transfer case, resulting in an oil leak. There is a oil pump saver bracket you can buy for less than 20 bucks to protect the casing if you still didnt experience the problem. But it is a big job to install. I have no idea what year they changed this but it´s a real problem for most.1999-2006 models.

[@akibax2781]

I bought my 2003 Chevy Avalanche str8 off the floor 2003..still runs like a champ..never had ANY major problems..IF U TAKE CARE OF HER🛻..SHE'LL TAKE CARE OF HER SELF😎💙💯

[@brandont6635]

SRT is dodge buddy

[@streak256]

@@brandont6635 my man said str8 meaning straight

[@GameTesterDev]

@@brandont6635 and it's not just dodge... Chrysler does it too.

[@JohnyKnox]

@@GameTesterDev same company and the 300 and Grand Cherokee are the only non-Dodge models to get that trim. The 300 SRT8 was discontinued quite a few years ago now.

[@JohnyKnox]

@@streak256 I had to read it twice because I also thought they were trying to say they had a Chevy SRT8. Using real words makes a big difference for communicating in the adult world.

[@teridale3700]

I just bought my avalanche a few of months ago. I love it! I'm having a problem that has me baffled. I noticed right away that the carpet, front and back floor, is always wet. I've taken out the floor mats and opened the doors to let it dry out but, it has never completely dried. I've sat in the truck while it rained. I've searched for leaks Goin through an automatic car wash with no luck. What the heck is going on? I hope you have an answer for me. I'm baffled!

[@aaronshippelhoute5011]

My dad's Tahoe of this generation had a bad heater core that leaked water from under the dash into the carpeting. Might check under your dash with the heater/ac running for a while

[@davidprince328]

Mine did the same thing. Mine was the rubber trim around the doors. Water was leaking through. Find some sealant from auto zone an apply a coat inside of the rubber trim. Fixed my problem.

[@kevinroe5857]

Problems I've had with my 03, E-brake shoes rusting loose, crank sensor, bad ground on fuel pump, exhaust valve bolts seem to break close to firewall causing leaks, brake lines rust, rust behind plastic cladding,digital compass and temp malfunctioning, very heavy truck overall...taking in account all these issues I definitely love my avalanche.

[@JoinerNotFound]

My exhaust studs broke near the firewall. You can buy a bracket on Amazon for ~$30. It bolts to the cylinder head and has another bolt that torques down onto the exhaust stud and seals it back up. A lot cheaper than pulling the heads and extracting the stud.

[@1southsoon]

This is spooky.Those all are exactly the problems I have had with my 02 2500. I only have 65k. I went to look at new trucks and nothing has the comfort or overall quality of my Avalanche. I bought it new and am keeping it forever.

[@onemoremisfit]

I had to upgrade the bolt that anchors the E brake shoes on my '02 to a 1/4"-20 threaded bolt from the mickey mouse sheet metal screw that GM put there. I knocked a wheel lug stud out to make an access hole to drill and tap the casting for the hold down bolt thru that hole. Dorman makes a 2-pc splash shield that installs without pulling the rear axles. Years later I replaced the splash shields again with one pc OEM because I had the axles out, and upgraded the bolt again to stainless. I also upgraded the hydraulic lines to stainless. I made them from scratch, had to pull the whole chassis wire harness to gain access where the lines run atop the LH side frame rail, and the front had to be 2 sections with a connector in the center of the front crossmember or it wasn't going in. Dorman makes a good pre-bent stainless brake line kit and years later I bought that and installed it. I had the body off the frame at that point so I was able to route the front line in one section.

[@durhamjut]

Plan on using just over a bottle of that Turtle Wax Trim Restorer. Doesn't make it new looking but does look better, some faded areas still visible.

[@TheCulnes]

1. A/C blend door actuators very problematic 2. Window regulators 3. Water Pump, had two aftermarket replacements go bad and finally went back to the Delco pump. 4. Wheel/Axle Bearings 5. Speakers 4L60 trans will need a rebuild at some point be it sooner or later depending on useage. At approx 160k miles with non aggressive useage also required: 1.Trans rebuild 2. Tailgate latch assembly 3. Ball joints 4. U joints 5. A/C schrader valves 6. Starter 7. Driver door switch assembly 8. Rear window seal droop 9. Rear main seal 10. Brakes/tune-up/etc normal maintenance

[@1AAuto]

+TheCulnes Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@lanawhite1670]

Love the info. My issue wasn't covered though and I've been told it's a Chevy issue. My dash lights randomly go out. Also my radio doesn't always turn off when I open the door and it runs my battery down.

[@steveneely672]

Original owner, 02 / 230K Plastic has always been a challenging color wise, still on the road, Love it, my son took it UHG! - and just bought an 05/ 190K picking it up today.

[@tessagarrett3088]

Thanks for this video!! I own a 2002 avalanche z66 just hitting 200k miles and am having two of these problems. Tysm for all the great info!!

[@edwardadams7619]

Bought a used 02 in ‘16. Gave it up this past March due to antifreeze in the oil pan(with low oil pressure)! ☹️. Mechanic said you got a seal leak somewhere, gotta pull the engine out. Original engine internals-349,000 miles, 19 Y O truck... not gonna happen!

[@calisoul1921]

349k is fucking good lasted that long

[@DanielIvan707]

Is the first Gen better than the 2nd Gen?

[@CaptainAries98]

looking to get an 04 avalanche and would like to know if mileage 210k miles) would affect any of these issues if its been well taken care of?

[@gqftoast]

You don't mention the 0332 code for the Knocks sensors which are a common problem on these and quite a bit of work to fix due to there being located under the intake manifold. This was fixed later by chevy moving them to the outside of the heads so you can get to them. Heatgun works but if your not careful you can damage your finish and yeah it will just fade again anyway. Using the wipe on wipe off stuff works pretty well and is MUCH faster and safer. I have an 04 1500 Avy so I know this from experience. I'd say the the #1 most common problem with the Avy is leaking Tonneau covers which wont stop you going down the road but can actually cause water to get in your cab if you don't keep the drains clean especially the midgate drain.

[@1AAuto]

+me here Thanks for the tip! We'll pass this info along to our production team.

[@1southsoon]

The best plastic rejuvenate product is Wipe New. I get an easy five years out of a treatment. Nothing compares, I have tried them all.

[@charleanwhittaker6403]

trying to find out what to do about the Padlock light on the dash its stays on all the time its running. any DIY solutions . 2005 Avalanche 1500

[@kootnygreen]

Pretty sure it means the doors are locked. If they aren't then could be bad connections off the door switches or chase the wiring.

[@jamessurveyor4859]

A small square piece of black tape will fix that. Just put it over the padlock. Also works for seat belts.

[@godonhere7446]

About to get my HVAC contractors license and thinking about getting this truck.

[@BrokenArrow685]

One weird problem I have is a rattling sound from the rear axel when I let off the accelerator. Mechanic couldn't reproduce, but I think they just didn't understand what to look for. Ideas?

[@sherinemincel2525]

Can you talk about ac issues to check for. Replacing ac belt etc. We have a 2002 Chevy Avalanche.

[@slayer91340]

Issues I had with mine were the need to upgrade the valve cover with the pcv. Because it would drip oil down the intake and smoke on startup. Another was the upgrade to metal intake manifold gasket. Mine just didn't like the plastic ones and finally didn't leak with the new one. And the one I saw a lot of, is aftermarket parts. This engine does not do well with it. Especially knock sensors. This engine has a design flaw that leads water to your knock sensors. Leaving the whole area to rust. Clean it. Then you have to create a dam yourself with red RTV and get ACDelco knock sensors, and new wire harness for them to really fix it. Aftermarket knock sensors commonly fail on this engine.

[@itzkrayola7927]

We just had a transmission shop repair the trany because 3rd and 4th was gone. We just picked it up from the transmission shop and when we started it, the check engine light is on, which has never been on and the engine is ticking. Called the trany shop, he took the trany off and started the truck, still has the same noise, so he said it's our deal, not his, but it didnt have this loud noise when taking off, until we had the trany rebuilt. The noise is getting louder, please help. He told us it's the bearings in the engine. But it didnt have that noise when we gave him our truck. Please help

[@lovellmills7959]

Im sorry too hear that, i just picked up my 03 with 288k for $2000 and is the same as yours has no third or 4th. im afraid too change the transmission because of exactly your experience 🥺

[@ksmith3116]

I own an 2004 model. Absolutely love it BUT. as far as the plastic i first tried a heat gun. It lasted about 2 months before it started to fade back out.. I ordered something called OEM bumper guard from e bay it's like 20 dollars a spray can. Took about 3 cans to do the whole truck. Looked great and new for about 2 and a half years. Plan on redoing it again in a few months. The great problem i am dealing with at the moment is the slow pumping at the gas pump. Chevy dropped the ball on that....arse holes...

[@John_Be]

If you take care of it it will last and last. I have over 350k miles on my 2004 WBH with the original drivetrain. There are 2 parts that are really worn out on it. The rubber on the gas & brake pedals, and the leather in the driver seat.

[@1AAuto]

+John B Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@fredrickthomas6865]

Hi I have a 2005 avalanche the tailgate won't open I'm told there's a plastic part that breaks often but I don't know the name of it could you tell me the name thanks in advance

[@squarewoodoutdoors]

Passenger side rear quarter panel rust is an issue with these also.

[@1AAuto]

+SQUAREwood Outdoors Thanks for the feedback!

[@codyschwoch5451]

The evasions problems can also make it so that your remote starts will not work because the avalanches were released stock with automatic remote start, and the only way for it to work is if there is no check engine light on at all

[@mnnm4067]

I’ve got 230k on my 2004 and haven’t had any of these issues, the occasional water pump, I love this truck. I hated them when they came out so ugly.

[@ncgolli]

If you found a used one (2003) that is undercoated, can the undercoating interfere with doing repairs? It has 460,000 kms(not sure what that is in miles) never heard of a vehicle with that many kms still on the road and looking good.

[@jeremylakenes6859]

Mine was giving a lean code. The o2 sensor was bad. It was dumping fuel in and barely running. I went from 17 mpg to 8!!! I changed the sensor that was reading too lean (bank 1) and it went too normal again!

[@garygrieve3184]

Look

[@kwd57]

I can see the plastic and the tailgate latch, but the other 3 problems are not Avalanche specific.

[@ursus353]

I have a 2002 Avalanche Z71; I bought it new in July 2001. Mine, being a California vehicle has zero rust, and I have never experienced any of these issues.

[@teamturner3933]

I’m in Sacramento and am considering an 03 w/ 160k miles it. It looks pretty clean. All these rust comments have me nervous. How’s yours holding up?

[@onemoremisfit]

So-Cal is one place you won't have to worry about the frame rusting thru. I'm in northern IL, I'm also the original owner of an '02, and I had to buy a new frame for mine. I just put a 3 year restoration in it, so I can say mine has zero rust too.

[@nicholasplumer2235]

I agree with everyone else on the heat gun. NEVER use heat, it will not last and it completely ruins your plastics. I'd suggest a video edit and completely remove that section because people trust 1A auto for good advice.

[@1AAuto]

+Nicholas Plumer Thanks for the feedback!

[@ferminzuniga7397]

Hi my friend I was watching tour video so, tengo una Avalanche 2002, 2500, 8.1 Lts en Querétaro, Mexico y últimamente la troka le falta potencia como que no corre cuando le pisas el gas ya le he checado de todo y ni un mecánico le encuentra la falla. Can you help me with this problemas, thank's.

[@jesuscarmen.v6258]

Es el throttle position sensor,cambiale eso y veras

[@mikekings5265]

Checkea la lines de Tierra están debajo de el lado de el chofer en este vídeo te las muestra muchas veces eso causa que no aga contacto fuerte

[@mariacalzada5597]

Puede ser el troro bary

[@CrCRicanMD]

Chequea o desconecta los catalyzadores y mira como acelera

[@milagrossmith4891]

I'm having problems with the fuel pressure regulator on my 2004 Cadillac Escalade EXT. Can you please do a video how to fix this. I cannot find it anywhere on KZbin thanks

[@1AAuto]

+Milagros Smith We do not have a video for this repair right now, but we'll keep this request in mind for a future video! 1aau.to/m/Shop-1AAuto-c

[@marywilson4938]

My 2006 with 154,000 miles is making constant chirping sound. Chirp chirp chirp chirp chirp chirp ... ???? No engine light on? Belts are fine. Any thoughts? Sounds like coming from top of engine maybe? Ty

[@1AAuto]

+Mary Wilson We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@9ktharuby161]

I Need some HELP ! Why doesn’t my 2003 Chevy Avalanche want to start . It starts and then it turns off on me while driving has a new battery wondering what can be the cause of it shutting off

[@1AAuto]

+9k tharuby We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@durhamjut]

Bought my 2002 new. Now at 245000 miles in 2022; Problems : Fuel pump replaced; power steering pump replaced, heated hose connectors at fire wall disintegration; Water pump replaced twice, AC compressor replace, front brake caliper stuck and replaced, rear main seal leaking oil , vent controller for fuel tank replaced, tow haul switch replaced, headlight fogged over replaced,fog light socket replaced, interior AC vent direction controller replaced, Rain gutter rails replaced...

[@xavierc1249]

In my opinion try Trim and bumper spray paint I think the brand Duplicolor ,just masked off area around cladding. Put on couple coats. Going on 8 months with continuous washes and recently had a lot rain and it might need some touch ups on some spots otherwise better than using that mineral oil stuff wiping it on every couple months🤦🏻‍♂️

[@CP-mb7ly]

Using the heat gun is terrible for the plastic - yes, it brings it back to like new but damages the structure since the oils from deeper in the plastic are brought to the surface where they'll eventually evaporate/break down by the sun.

[@nikkijennings3778]

No mention of the rear output shaft seal?

[@bunzthompson236]

Are you able to remove all plastic trims

[@justinspeegle4668]

I need a truck I know where nice avalanche is that has lost power is it worth trying to fix?

[@Troitaa]

im about to turn 16 and ill be driving my dads old 05 avalanche. luckily it was the version with no plastic on the sides. thanks for the help!

[@1AAuto]

+Troita Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@Hawaiian.808]

You forgot that big oil leak too!

[@bengentile2162]

Transfer case pump rub. --big one!

[@1AAuto]

+Ben Gentile Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@davidmohs1928]

Nailed it!! I felt like you actually had my Avy! I have had all these problems. LOL

[@chandramcswain319]

Does avalanche 2005 have a cabin air filter?

[@colbychapman8297]

My 02 Avalanche is having low power problems what should I do

[@crasshh44]

That avalaunche has more issues than what you were talking about like the rusted out frame on drivers side .

[@dennisfischer8765]

Sure does.. I got a 03.. rust all along under doors.. I took sheet metal and rebuilt it.. and all 4 fenders rusted out

[@kevinlogozzo3952]

@@dennisfischer8765 ‘02 here. Rear fenders rusting badly and rusted through under drivers side doors.

[@I_dont_know997]

Plastic paint buddy is the best

[@robertspain3742]

My 2009 Avalanche 5.3 has a whining sound the is most prominent between 45 and 70 and occurs while under throttle. When letting off throttle, the sound disappears. Many places have suggested the alternator, I was wondering if the rear-end could be an issue. I am hoping for something not too difficult (like a torque converter going out), Any Ideas? Thank You

[@1AAuto]

+Robert Spain We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@dejavu6475]

Posting before watching here, thr third plug wire on the driver's side rubs against your steering shaft bolt, causing it to start missing after time. It starts to miss when you turn the wheel, then in time it just misses all the time.

[@ritamartinez3040]

My 2002 chevy avelanch is not turning on I drive it for a while and the moment I turn it off it won't turn on again. I have to wait for a while before it turns on, it took maybe 1/2 hr for it to turn on and now it takes a lot longer . Sometime's when I move the key around and in and out it turn's back on but now it's not even doing that. I can't afford to take it to a mechanic to fix it, Can you please tell me what it could be or send me a stick dynamite so I can put it out of my MISERY Lol

[@1AAuto]

+Rita Martinez We wouldn't be able to diagnose an issue like that here. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@linr7342]

Maguire's back to black makes plastic look amazing.

[@JohnyKnox]

Works much better than destroying it with a heat gun like in this video?

[@djpapachris]

What about the notorious Service 4WD code ???

[@davea3889]

My avalanche 1500 has 251k miles, I always do my oil changes and transmission fluid changes

[@1AAuto]

+Dave A Thanks for the feedback!

[@ghostmofo5829]

I’m at 280,000 with my 04 and still running strong. Also do all my own maintenance.

[@lovellmills7959]

@@ghostmofo5829 288k on my 03

[@calisoul1921]

What fluids do you use if you don't mind me asking injust bought an 06

[@detailcentral]

Thanks. Interesting. I have two of the issues, evap valve and tailgate handle

[@peytonyoung5382]

My tailgate handle got busted by some jackass that cut my brake lines and slashed a tire got it all straightened out though

[@heatherstrickland571]

My tailgate freezes shut!!🙁 but I also live in michigan where we have damp winters!

[@michealallen8708]

What causes noise up under the truck like a barrier

[@123childcare]

Have a 04 1500 avy. 301k miles. Replace tranny twice. One was my fault. Problem is right side blows hot air when on cold.rpm side Instrument cluster buld burnt out. Drinks fuel like crazy.

[@H8onG]

I'm having a p0455 vent code, I replaced the solenoid under the hood, the canister, vent valve, and gas cap. Code will not go away, the only other thing I can think is it's the lines may have a crack in them. Anyone got any idea what else I can check? 06 Escalade

[@atrian_op4482]

Anybody know where you could find the Steering Pressure Switch on an 07?

[@Ishkatan]

What about all the frame and body rust!!?

[@takieshaharper621]

After my check engine light came on, I was recommended a major tune up on my '05 Avalanche. Then was told I needed to replace 2 heads. Now the shop has had my truck for a week and a half. Owner SAYS that the truck runs fine but check engine light is still on. Please tell me why. I need my truck running properly and I'm afraid they're going to do some Mickey Mouse stuff just to give it back to me and let something else go wrong.

[@Savvyman79]

Replace gas cap

[@justinspeegle4668]

What about piston slap noise? Anyone know about that ?clanks when you crank it?

[@marcdich9066]

just purchased my 2500 series 05 avalanche so far so good with 176.000 miles gettting 18.5 mpg hihway onli issue i know of on ine is the tailgate

[@worldclassish]

Your channel helped me and so did the comments. I subscribed thanks for the help.

[@hyperspaceexplorer5594]

That's a lot of rust and rot. Any remedy or how to remove the rust?

[@daleck3321]

Frame rusted out where hoist arm is holding it up look at 5:20