How to Fix Car Hesitation (Code P0171)

Car hesitation, Code P0171. How to fix car hesitation when accelerating by replacing leaking intake manifold gasket, DIY with Scotty Kilmer. How to fix intake manifold gasket leak. How to replace intake manifold gasket to stop leaking. DIY car repair with Scotty Kilmer, an auto mechanic for the last 46 years.
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[@scottykilmer]

Things I used in this video: 1. Actron Scan Tool: amzn.to/2ngeCQJ 2. Carb Spray Cleaner: amzn.to/2jTU3ED 3. Ratchet and socket set: amzn.to/2inoxOY 4. Mechanic’s Tool Set: amzn.to/2Bzmccg 5. Screwdriver set: amzn.to/2jaHIfP 6. Disposable Gloves: amzn.to/2zSRuxO 7. Common Sense 8. Full HD Camera: amzn.to/2AvoEk7 9. My computer for editing / uploading: amzn.to/2i2sKYz 10. Video editing software: amzn.to/2jv5Fhf 11. Thumbnail software: amzn.to/2k7tz6C 🛠Check out my Garage to see what I use every day and highly recommend: www.amazon.com/shop/scottykilmer ❗️Check out the Scotty store: goo.gl/RwhRGU 👉Follow me on Instagram for the latest news, funnies, and exclusive info / pics: goo.gl/ohy2cA

[@lastmanbreathing9319]

scotty I wish you could help me out with my 2002 GMC Denali 6.0l idle rough I just cleaned the mass air flow sensor now waiting for it to dry and hope it fix it uuuurrrr

[@nickh7121]

Scotty, I notice you don't use sealant on the gasket...do you not need it for this ? Or did you do it off camera.

[@victoriametheny9080]

Scotty i have a question .....my 2002 pontiac sunfire se 2.2 liter engine. I was accelerating but it like hesitates like it doesnt wanna go im pushing gas little to push through it and it go like normal again .... Im learning as i go but i dont know why its doing this and engine light isnt on so idk what to do im changeing spark plugs now but i was wondering if youd have any advice on what could be the problem

[@tampaMade]

2016 nissan sentra sv engine like came on with the code P0171 (diagnostic trouble codes) and a most likely solution from power train system is to replace mass air flow sensor . @scottykilmer I need your suggestions

[@spelunkerd]

I like it when you start with a very simple classification of the problem, too much air or not enough gas. But it's experience, knowing that on that engine the intake gaskets fail, that allows you to jump right to a definitive test. It's why the more challenging problems are more educational, since the veteran can't take shortcuts.

[@ivankulya8291]

I just put the intake manifold gasket without testing it with carb spray. Glad to find out that I was right, the old one was sitting flat and it was completely covered with dirty oil. Thanks Scotty for saving the day!

[@scottykilmer]

Yes, another new Scotty video is up. Learn how to fix your car if it hesitates while accelerating.

[@sheliadodson9275]

Ha Scotty! Me again saw video,done that! Mu jeep problem is the powertrain,what can I do? There's recall for that been 5mths.,waiting.can I fix it myself if so PLEASE help(97 jeep grand Cherokee larado 6cly 4.0 )remember?

[@randyfitz8310]

New seal at the throttle body, too?

[@MrYesees]

Hey Scotty, I have a 1999 Pontiac grand am gt. I will be replacing the intake manifold gaskets but was told not to use OEM gaskets because they are made of a composite material. What are your thought on this and should I go with a Fel-pro PermaDry?

[@scottykilmer]

yes, felpro are better

[@fisherwhite8238]

***** ionly can say bad mechanic

[@HermannWolflEssert]

The lobster isn't screaming, it just has a leaky gasket.

[@deriklfixit]

NOW THAT WAS FUNNNY!!

[@skeeter2112]

Scotty you're the man! This is exactly what was wrong with my Toyota. Car back to running with much better mileage and power now. This was a huge help to a nagging problem! Thank you!

[@DougHinVA]

Corollas that are old have this problem a lot and mine did (a 2000 with 275K miles).. It's a job for a mobile mechanic unless you have skills and tools and can remember what to put back and where... I'll never do it again, so why not just pay a skilled guy a small fee to do it with my Fel-Pro gasket. ??

[@TheKnightDrag0n]

Damn experience is really something, you make umbolting parts from the engine look so easy.

[@diegogonzalez9086]

Scotty, u r making me rich by all the money u r letting me save

[@armesisp3201]

Just had this problem on my Escape V6, fixed it by changing 2 faulty ignition coils and all the 6 spark plugs, on top of that they also cleaned the MAF sensor and flushed out the air intake system. Now the car runs very well.

[@marke.861]

Mr. Scotty you just motivated me to do my DIY intake gasket replacement, you're now my guru :) keep being amazing sir! God bless you!

[@chriscenatiempo4261]

How'd you do haha

[@terrychristle1477]

Thanks Scotty. Kid home for weekend, car rough with this code. Tested, as per your video. $8 and 30 minutes later running smooth. He can now drive 4 hrs back to school! Thanks again

[@chrisc.c52]

When I saw your video the first time, I thought.... this is just another crazy guy on you tube.... after I finish seeing your videos, I realized how wrong I was and now in my opinion, you are one of the most Honest Nonsense mechanic in KZbin. I really enjoy your videos and have learned a lot from them. Thank you & keep doing what you do....

[@datchulo1085]

I think I can speak for everything in saying I appreciate your videos, your responses to our questions and advice you have given us . Thank you Scotty!!!

[@scottykilmer]

If you like my car help, be sure to watch my live car talk show every Saturday morning at 10 AM CST on KZbin. I answer your car questions LIVE there. Just check it out at How To Ask A Live Mechanic Car Questions Free On KZbin . And remember, every TUESDAY I upload a new video, so don’t miss them.

[@dinoBMXidiot]

This helped ALOT ! My car was showing a P0171, So I jumped into youtube and saw this same clip, ran back to my car, did the spray cleaner test while the car was runing and indeed it afected the Idle and behavior of the engine while running. Now after, observing colsely, in my case , it wasnt exactly the mainfol gasked that was leaking in the air. It was acctualy the injector seal that wasn,t doing its job (i have a 2.3l ford escape2006 and the injectors are on the front of the head), and a replacement of the dount shaped little plastic pices made all of the difference. similar to what you demostrated here but slightly diferent area hat was not sealing properly. any way it was trough this test that i found what was happening to the car, so thanks Scotty.

[@Fishy1221]

Thanks so much ,now I know where to look next for why my cars a bit sluggish... For a topaz that's almost 30 years old I'd expect it may be the problem, I already flushed all the fliuds,changed all filters, cleaned out the throttle body,new idle control motor, throttle position sensor, and spark plugs and cables.I'm still learning all this stuff, really appreciate your videos. no one will teach me cuz I'm a girl so I have to teach myself and I have fun doing it ...can't wait to see what you post up next

[@scottykilmer]

If you like my car help, be sure to watch my live car talk show every Saturday morning at 10 AM CST on KZbin. I answer your car questions LIVE there. Just check it out at How To Ask A Live Mechanic Car Questions Free On KZbin . And remember, every TUESDAY I upload a new video, so don’t miss them.

[@kiddeft]

Scotty, a few things, is it important to disconnect any electrical lines? I've seen demonstrations of this where people disconnect as many things as they can and others where they disconnect as little as possible. Do you need to disconnect the negative battery line after the job is done to reset the computer to take off the warning light or will that disappear on its own after awhile?

[@ScubaCat3]

I had to do this on our 2002 Windstar. Just a tip to those of you who may attempt this - this video is exactly what you do, except if your intake has a coolant passage or two (you can tell by the coolant color around the hole), you must change the oil and filter before you crank the engine. Otherwise, you'll have some coolant in the crankcase which will destroy your engine bearings. As always, this is an awesome Scotty tip though -- those gaskets are cheap but paying a shop to do this simple task can cost a ton!

[@northstar2007]

Should also clean the throttle body and MAF while it's apart.

[@dog-gonedogs6939]

GREAT VIDEO THANKS! When you put the gasket on before you replaced the manifold, how did you assure it stayed in place while you turned it over to reinstall it? My luck it will fall off or not seat right. Just wondering if it will just stick there in the groves or if i will need to put some kind of sticky gasket sealant or something to hold it in place? Thanks again!

[@scottykilmer]

+Dog-gone Dogs this one fit in grooves but you can use small amounts of gasket seal is not

[@dog-gonedogs6939]

Scotty Kilmer Thanks

[@brettgardner2096]

Scotty, I have a 1999 Ford Taurus with 100k miles. It has the 3.0 Duratec V6 and has had a P0171 & P0174 code for the last year. I have replaced the fuel filter, spark plugs, wires, fuel pressure regulator, pcv valve and elbow, multiple vacuum lines, fuel injector O-Rings, upper and lower intake gaskets, mass air flow sensor, and all 4 Oxygen sensors were replaced today. Fortunately the car runs like a top but still has a P0174 code. I don’t want to get rid of the car because I don’t want a payment. My mechanic does a great job and doesn’t charge much so what do you recommend?

[@girohead]

Perfect, this was served up to me, after I cleaned my MAF sensor for the third time. I suspected it could be air cleaner (but cleaned that twice) or vac leak, but couldn't find anything. Now I have a backup plan if this last cleaning doesn't do, I've been hesitant to buy new MAF but others say they do go bad (just unlikely for Toyota). If the light returns (or might anyway) can of carb cleaner is ready. Thanks!

[@seans533]

you are the man... gonna do this next paycheck... Got my codes read and found this video and low and behold this is my exact car so I have a feeling this might be the exact problem... Thanks again for a straight to the point video!

[@SB-cs2yv]

I'm having this issue with my 2007 Toyota Camry. I'm hoping that my issue is the gasket because I'm excited to try this DIY and finally get my car back on the road. Next is figuring out if my AC has a leak (I hope that's all it is) so that I can get it fixed and not have to take it to the shop where they'd have to remove the entire dash. Oh and I don't have a lot of tools so if you could tell me which sized tools you used that would be great.

[@lexusfan100]

thats kinda kool way to check for leaks in gasket. did not know about that trick..thanks

[@jresperanza]

hi scotty, nice video, just a question, if the throttle body needs periodic cleaning, should the intake manifold also be periodically cleaned? thank you!

[@PARzjan]

Wow this is great! But what else do we check if the intake manifold gasket is not the problem?

[@scottykilmer]

many things, fuel pump pressure, low pressure does that, as does bad MAF sensor or clogged fuel injectors.

[@johwi97]

Thanks for the tip. I have converted my -96 Ford from gas to E85 and not getting it to run 100%, fault p0171 keep comming up no matter what fuel pressure I adjusted it to. 3,5 bar was the most optimal. I did not think of the gasket, now I am checking that too!

[@ViperJay5]

Scotty, how can I try this on a 2011 Chevy Malibu 2.4L? The way it is designed is that the engine cover is part of the air intake system and so if I take the cover off to reveal the intake manifold, the throttle body is completely exposed, is that safe to do or will it cause problems?

[@1catbrains]

Thank God for Scotty Kilmer!

[@martinzhaoxu]

Hi Scotty thanks for the video. My 2014 Mazda6 has the P0171 code stored and check engine light on sometimes, and after a while its off, but it seems to drive ok. Do I need to change the gasket like you did in the video or should I just leave it?

[@IKhanNot]

Scotty when removing the TB for cleaning or other work should I replace the gasket if there is one or is it reusable.

[@MrHondaguy77]

Great video, but question. 2006 Chrysler minivan, Drives fine until about 40 Mph and that’s when it hesitates for a min then speeds up. Transmission feels fine. No slipping or anything. Any suggestions? Thank you

[@jeffreyvasquez2536]

M respect to you scotty you, make me save tons of money by watching your videos.

[@tuananh9157]

Hi Scotty, I'm doing this job on my corolla 2007. My question is do I need to use cleaner to clean the little holes for the gasket before I put the gasket back in?

[@johnalbers6422]

SIr, I'm having this exact same error code on this same model of car. I've replaced both the mass airflow sensor and the manifold intake lines. What now?

[@yamiyo6050]

John Albers fuel pump

[@HighVybeTribe]

Maybe fuel filter

[@nizarhakam]

My 2011 BMW 328i has a check engine light and both P0171 and P0174 codes. The mechanic said he did a smoke test but did not show a vacuum leak, and that the throttle body and intake manifold looked good. Replaced the MAF sensor but didn't solve it. The intake manifold gasket was also replaced. What are the common culprit(s) for this specific car?

[@GOPSpinMachineInOD]

Great tip about spraying carb cleaner by gasket and listen for idle change! Probably an old trick but new to me, like using cheap cigar for vacuum leaks or spraying water on running belts to isolate noise..hehe I'd swap the throttle body nitrile gasket...my toyo one was well shrunk/rotted after 12 years.& likely leaking coolant into air intake..just for added fun!

[@ParadoxdesignsOrg]

if it were only this easy on all vehicles. spot on Scotty!

[@charlesmoore1621]

Thanks Scotty that was helpful I'm doing my manifold gasket today also just did my ignition coils it's a lot cheaper doing it yourself.

[@DtKnize]

Hey Scotty, I had the same code on my 2004 Dodge Ram 1500 SLT 5.7 Hemi, I replaced bank #1 upstream O2 sensor, no help. Removed throttle body, cleaned, replaced bad gaskets. Found EGR valve bad, replaced. Started right up ran fine for awhile then code popped up for #5 fuel injector, replaced, runs great no codes!

[@jarettcatalano842]

Fantastic video. Simple explanation and relevant video of each step. No fuss no muss. Perfect

[@kentbarger6974]

Hey Scotty I would suggest letting people know to spray carburetor cleaner on a cold motor not a hot motor some people getting too much of a hurry and don't think and they may accidentally not realizing it because they're not mechanics and it is possible right person to spray flammable liquids to check for vacuum leaks so I would recommend letting everyone know to do this on a cold motor

[@Norman31chea]

Carburator spray are flammable. And when spraying to that hot area, you are not concerned about the fire?

[@PedroMartinez-mk2yr]

Do you have one if it run rich? Or how about if the intake man is good and has been replaced?

[@codyhamilton3622]

So I have a 2009 GMC Sierra and it only throws a P0174 Lean in Bank 2. I’ve ran fuel injector conditioner (Lucas) as it says on the bottle every time I get gas till I empty the bottle. I’ve done that twice and if I quit and fill up a few times without Lucas and eventually my service engine light would reappear. The truck does have a Volant cold air intake just to add. Could I get your opinion on what you think I should do. I just poured a whole can of sea foam in the gas tank and filled it up today.

[@kennymartinezsss6914]

Hey Scotty I have a 04 BMW 325i and It has SES light ON. Codes are (P0171 bank 1 & P0174 bank 2) what should I check first and how do I fix it Thanks in advance Scotty

[@scottykilmer]

on those, most always vacuum leaks on the intake system, cheap plastic parts crack when 10 years old and suck air. See my video "finding engine vacuum leaks with a cigar"

[@agentkikokiko]

i have a 2001 crv and getting sluggish during uphill. what do you think is the problem with it?

[@rimonramis8813]

hi Scotty, does seafoam intake cleaner cause these manifold gaskets to wear.?

[@renodeify]

Wow... you are a godsend, Scotty. Have the same engine and got that error code few months ago.

[@RmoneyENT]

Great video my check engine light just came on a few days ago and its on and off got the same code p0171 lean and it could be more than 5 different things to fix it i was told i could get a more advanced diagnostic done for $65 dollars is that a good price and any suggestions also had replaced the fuel cap so shouldn't be the problem. i have a 2004 Honda Accord 4 cyl. 190k+ miles automatic!

[@scottykilmer]

that's a good price IF they can figure it out and fix it cheaply enough.

[@RmoneyENT]

Scotty Kilmer Thanks for your response I'm going to have the mechanic do it tomorrow and if it is a problem with the engine or fuel I have a warranty so hopefully any work needed will be covered.

[@dalemoyer523]

Hi Scotty, I have an 01 Toyota Celica with codes P0171, P0301 - P0304. These codes have been hanging around since I bought the car. I thought that I would be able to fix it without too much trouble. Boy was I wrong! The previous owner said that he changed the MAF twice but problem persisted. I changed the intake manifold gasket, spark plugs, and air filter. Car really bogs down when accelerating. Per live data on diagnostic tool, O2 sensor and MAF appear to be at least functioning, really don't know what readings to expect. Tested output of MAF with Volt-meter. Appears to be changing with RPM. Problem may have gotten a bit worse when I added fuel injector cleaner to the gas tank. Was considering connecting a hose from another car's fuel line to the injectors on the Celica, however, I can't figure out where to connect and disconnect fuel lines on the Celica. I have a fuel pressure gauge but cannot find a way to hook it up. I am out of bullets. Any suggestions would be greatly appreciated. Thanks, Dale P.S. Love your videos - and I'm not just saying that to butter you up ;)

[@deriklfixit]

hows your fuel pressure?

[@johnnyk3461]

hey scotty! i followed every step you did and replaced the intake manifold gasket but my engine light is still on while having the same code. what should i do next?

[@nimolpich]

Scotty Kilmer I have a Toyota Camry 2002 with 11K mileage. I have a problem with the engine I do not know what it is. The mechanic in my country can't seem to find the problem either. My car has knocking sound from the back of the engine when it is cold especially in the morning. It happens for 5-10 minutes. Then the knocking sound is gone. I am looking forward to your help.

[@MiguelVargas-my5kc]

Hey Scotty, great video! I have a 2004 benz c230 i have replaced the gaskets on the intake, replaced vacuum lines... car is still getting this code and only po17. im out of ideas

[@luckyrabbitestatesales1049]

I have a P0171 code coming up on my 2001 Ford Sport Trac. I also noticed that I used more than a normal amount of gas for a short trip today. It's the manifold gasket? I was thinking a fuel injector.

[@jcasti1226]

Hey Scotty I have an 02 Camry with the 4 cylinder (60,000 miles) engine ever since it was new. After the first battery went bad the engine idle has never been smooth, it idles at around 500rpms with load. Over the years we have tried various things ( Throttle body cleaning, MAF sensor cleaning, new OEM spark plugs and new air filter, check for vacuum leaks, new OEM oxygen sensors). None of this have work. Any Ideas?

[@scottykilmer]

those are often funky idling machines due to the computer system. But, you can go to a toyota dealer and they can reprogram it to idle somewhat faster.

[@rockyrupa7321]

Hey Scotty I have a 02 Monte Carlo if you floor it in neutral it revs to 5-7k rpms but if you floor it in drive it won't rev past 3k rpms and the car will barely accelerate I have p0171 and p1811 (long shift) with one would cause this problem

[@sanchezvh]

Hi Scotty will this method work for a chevy silverado tnks

[@PacerRim73]

I got one for u Scotty. 2008 dodge ram 5.7 hemi 4x4, coming to a stop the truck just shut off right in the middle of traffic. Any suggestion?

[@bwnwari201]

Hi, Scotty, I have a Ford F-150 and I get the codes PO171 and P0174, the thing is that they come and go, the check engine light is there for a couple of days and then it disappears; any ideas? Also, in principle would it be about the same to replace the gaskets on my ford as it was on the Toyota? Thanks

[@WestBovina]

Hey Scotty, I have a P0171 code on my 2002 Chevy Monte Carlo SS V6 engine. I changed the mass air flow sensor, but weeks later it wouldnt start unless if I press the gas pedal. I followed the steps on this video and my engine just stayed on idle. So I was wondering if you got any suggestions?

[@panzerabwerkanone]

Scotty would this how up on a vacuum gauge test too? What kind of reading would you get?

[@xIamLegendx509]

Scotty I think my Bmw has the same problem, I go to give it gas and it wants to die but wean I nearly step on the gas, it runs fine just wean flooring it, so should I also do the same thing??

[@vilveyachke5103]

I just had the same code on a 2.3L Ford Ranger. It was caused by a loose connection at the exhaust manifold.- the replaced Catalytic converter to the exhaust manifold. A friend had replaced my catalytic converter and had not tightened it up properly. Replaced the CAT again, and all is well.

[@559to916]

Scotty do you think my bad injectors could caused p0171, too? I'm waiting for new injectors but should I go ahead and do the intake manifold leak test?

[@scottykilmer]

check everything of course, but bad injectors will trip that code if they don't spray enough gas

[@kevinduhon9465]

Ok scotty I spray the carb cleaner and the idle didn't move so what should I check next on a 2000 toyota corolla with P171 code

[@bereal1251]

Can throttle body cleaner be used to check for leaks instead of carburetor cleaner?

[@davidvalencia5061]

You have saved me allot of money man. Thanks Scotty!!!

[@alexbuzmion3892]

Scotty I have the same engine code, but is that the reason why sometimes i change gears from 3rd /4th rpms will reach 4000/5000 then drop back down to 2000 then increases. i already checked the gasket leaks with brake cleaner and it doesnt look like my P0171 issue is the gasket.

[@GodsHerosGodsHeros]

Best mechanic and a veteran

[@jake4692010]

I have a question Scotty, I have a 2005 honda accord lx sedan 2.4l it keeps getting the p0171 and p0139 code I have changed the o2 sensor, the air intake hose from the engine to the air box, spark plugs, mass airflow sensor, pcv valve, and some other thing related to it doesn't hesitate on acceleration at least I haven't noticed . I was wonder what advice you could give me because I have been trying to get these codes to go away and just can't seem to get them to. I will check the intake manifold gasket when it starts to warm up a little bit.

[@victorcano5479]

hi Scotty i have a 2002 toyota celica gt, i recently noticed that after i replaced the exhaust manifold and manifold gasket (needed replacemnt really huge leak) i started getting hesitation when i accelerate. I just found out i need my catalytic converter to be replaced. could this be the fix to my problem or do i need to do more on it? HELP!!!!

[@BryanG830]

Great video but where can I find this on a 2001 Chevy? Cavalier 2.2 l. SFI

[@ganja_ghoul]

My car is a 2014 Chevrolet Sonic LT and I got the same code should I use the same methods to make sure I need to replace the part you used?

[@scottykilmer]

yes

[@TexasPLNR]

Nice video. I had this same code and could never detect an air leak. After replacing manifold gasket and MAF sensor, I had to ask a shop to check the fuel injectors. One was partially blocked! Do you know any easy DIY approach to detecting fuel blockage to an injector?

[@scottykilmer]

check the spark plugs, blocked plugs would run leaner and hotter than others and be a whiter color.

[@AdventuresForAKing]

Hello scott, I have a 2008 ford taurus x 3.5 liter , whenever we fill gas (passenger side) we get a strong gas smell on the driver side, I dont notice any notable leak but the smell is strongest at the rear driver side wheel well. Any ideas? Smell is much less when tank inst filled or topped off

[@joshbrown2457]

Hey Scotty, I have a 2010 Honda Fit sport that is running the P0171 code with a check engine light. I recently put a k&n cold air intake on the car. Should I get rid of the cold air intake? If not than how would I fix this issue?

[@octojoe]

I fucking love mechanics who know what they're talking about,cheers for the vid man;]

[@scottykilmer]

If you like my car help, be sure to watch my live car talk show every Saturday morning at 10 AM CST on KZbin. I answer your car questions LIVE there. Just check it out at kzbin.info/www/bejne/jKDKn52hjsaAoMk&feature=c4-overview . And remember, every TUESDAY I upload a new video on the scotty kilmer channel on KZbin, kzbin.info , so don’t miss them.

[@alekseygoltvanitsa8520]

Much Thanks! You Did it again Scotty. Once again I saved money thanks to you.

[@denisethessen6749]

Hi Scotty. I own a 2005 ford Focus with an engine code PO 171, why do you think it is?

[@coachdempsey4660]

I have a 2009 suzuki sx4 sport and a code p0171 is on and i already changed the intake manifold gaskets and mass air flow sensor. I look and sprayed everywhere to see if there is a leak somewhere else nothing. The check engine light is still on. Any idea what it could be?

[@david_m157]

Hey Scotty, I have a problem with my car and I think it might be this! I have a 1999 Lexus ES300 V6 and the Front bank is definitely leaking because there is some oil buildup coming from the top of the engine. The engine codes are many, including misfiring on all front bank cylinders, the P0171 code, P0441, and P0136. The fuel filter needs replacing. I already picked up an OEM filter and will do that next. My question is, do you think a head gasket leak could be causing all these trouble codes? The car has 172k on it and I'd like to make it last since it still drives reasonably well!

[@scottykilmer]

+David Miszczyk yep, do my video "how to tell if your head gasket is blown"

[@calloway1972]

Scotty, I have this code intermittently but no power loss per se. We have noticed that we think the gas mileage has gone down, and I just found a hole in our Muffler. Could that be related? a mechanic replaced the MAF but I'm not so sure it was even bad.

[@scottykilmer]

it could be, change the exhaust flow, it can mess with air fuel ratio

[@Motorsportsgeek]

Nice the answer to my question lol , same car too , changed the intake manifold gasket and runs great , thx scotty

[@38911bytefree]

Scotty. I have a 96 Accord, Automatic, horn stop working some time ago. Don't heard any clicking sound from a relay, that its supposed to be on the driver side.I have another issue that is, got some "diesel" sound at the very start. The car idles at 1500RPM, perhaps more. Then, 5 minutes after, it goes down to, 800-700, a bit slow IMHO, the engine shakes very little. this iddling improves after taking the car for a ride, it feels smother. The last question is, havin 205.000K, from a only a one owner, will this car turn into a problem soon or I can use it without worrying by now. The car is automatic, autos are so rare here, I;m a bit frigthned about this gearbox going bad. Final information, no check engine light. Thanks Very much Scotty. Love you channel. Saludos y un Abrazo.

[@scottykilmer]

automatics stink on those things, i'd get rid of it before it needs a 3500 rebuild job. But do try my video "how to fix a car that idles poorly" to fix the idle

[@38911bytefree]

Its sad because here nobody rebuild autos, that's the point. Here are almost manual. Scotty, the horn issue, have you got any clue ?/ I use the horn a ton. Its a shame since the car in pristine shape and its nice, but is likely to be a paperweigth. Any chance of doing this car MANUAL instead of an near impossible rebuild. Gearbox shifts nice, and fluid is clean, red color. The car has been well manteined, but I don;t want a problem, well, I got one now I think.

[@BarnabusBronson]

If i use starter fluid, would that also show a change in the engine idle?

[@blacklightdreams6852]

Ok but what if u have bank 1 and 2 system too lean. I've fixed the maf sensor. Fuel filter. Air filter. Cleaned iacv. Still idles low usually when I stop it wants to drop down to about 400rpm then goes back to 725rpm

[@andrewmcquilkin1320]

I have a 2700 CRV what do I check for that and how do I do that 1 because it doesn't have a carburetor it doesn't have a lot of that stuff to you have on that sting ray or the Toyota you were doing that on so kind and just wondering if it's any different or if it's basically the same

[@RBM569]

Hi scotty, I have a 2006 Subaru Wrx Sti, the turbo went im pretty sure, it is rattling when boosting. Along with that popped up this exact code. Could it be related to the issue or is it a completely different issue. By the way there is no smoke clouds so I think the seals have not gone bad yet on the turbo.

[@scottykilmer]

+RBM569 if it rattles, change it before it blows

[@RBM569]

+Scotty Kilmer what about the lean code?

[@frankderuiter811]

+RBM569 Are you shure your turbo rattles? The sealing of the oil is the first to go. There is a big chance that it is caused by your exhaust (manifold or down pipe). Another possibility is that your engine starts detonating. That would also explain why your car is complaining that it is running lean.

[@frank_texas7400]

I used everything...smoke, carb cleaner, gas, hell I even went to the trouble of buying a tactrix cable and software and learned how to tune(perfect excuse I wanted to get my hands into tuning without being yelled at by my wife) trough the tune fixed the problem i was still hearing that whistle sound so I used common sense since you cant see air i got a scope and found out that the pcv valve hose was loose, makes sense since oil wears rubber out, so i could have solved the issue with a 75 cents clamp but i got ahead and put an oil catch can (another excuse) runned some cleaners, re-tuned the car and now i am making money tuning Honda fan boys modifications and got a perfect smooth running car!

[@Mr89boost]

Hey Scotty, awesome video! Quick question about a 1989 Toyota Supra Turbo. When you start the car in warmer weather (60 degrees plus), the car has a hard time starting and takes a couple cranks. But in colder weather, it starts like a champ. The car throws no codes, could it be a CSI? Thanks

[@scottykilmer]

try a new coolant temperature sensor for the computer.

[@559to916]

Hey Scotty, will a bad oxygen sensor cause p0171, too? I did the maf replacement, feel pressure seem fine, sparkplug replaced, no leak that I can find. It's a 2000 corolla. I'm afraid that the acetone might be eating the fuel system up on a side note.

[@scottykilmer]

it can, but normally the sensor just feeds back to the computer that such a problem exists, not the thing that creates the problem. On those most often a leaking intake manifold gasket

[@559to916]

Scotty Kilmer Also, I can't get my cat monitor ready when I reset the code on the car. It's been weeks already. In California, you can have 1 not ready but it can't be the cat and I got the cat.

[@acekhmer]

Hi scotty i have a 2003 celica gt. It has the p0171 code. I sprayed carb cleaned all around the intake manifold gasket, but it didnt create a weird idle. Any other ideas what it could be?

[@TheDoeboy213]

is this only for the 03 and above models? I have the same code for my 02 corolla but it also has the p0420 code

[@eldragonsanchez6486]

hello scotty my friend has a 93 honda civic, it is a manual transmision and its' iddle is high and while changing speeds it shakes a little, but it runs good. I do not know what the main problem could be please help.

[@celile8279]

I recently replaced my intake manifold gasket on my 02 Celica. Although I don't have the check engine light or P0171, I can still hear hissing around the intake manifold area. The sounds like it's sucking air whenever I step on the gas. I only have a drop-in K and N air filter.

[@churnation2153]

Thats evidently still a vacuum leak.

[@robertcoleman799]

hi scotty, I have a 1999 Ford Explorer xlt 4wd model that is pulling a po174 code and I just put new intake manifold gaskets on. Can you help me figure out what else could it be? Thanks

[@epicned3837]

Hey Scotty, I'm having some car issues that are intermittent. I have a 2005 Ford Ranger 3.0 L v6. The other day my truck did something that didn't make sense. I was driving it and it seemed like it was getting power half of the time, then no power at all. It would cause my car to jerk violently while driving. I was able to make it to the mechanic immediately (one that I usually take it to). This same engine code, p0171 came up and they replaced my spark plugs, spark plug wires, fuel filter, and the MAF. They also smoked my vacuum lines to check for a vacuum leak. There wasn't one. I got my car back and it seemed to run fine for a couple weeks. Then all of a sudden, I took my truck on the highway at higher speeds. After about 20 minutes it started jerking again, but this time my truck completely died on the side of the road. It's in the shop yet again and the mechanics are puzzled right now. I'm not really sure what to do about this since every mechanic I talked to seems puzzled. Do you know what this could possibly be?

[@epicned3837]

I should also mention that it idles fine. Nothing wrong with the idle. They said I may or may not need new fuel injectors, but that can be an expensive job and I wouldn't want to go through with that and it ends up being that it still wasn't my fuel injectors.

[@lasers33]

My 03 Pontiac vibe looks exactly like this under the hood and have the same code. It idles rough and has low power. I also have a p0770 code for a transmission solenoid E

[@biancareza9100]

hey Scotty . I have a Volkswagen 2001 beetle that code poped up when auto zone pulled it up and they said I needed a new senor . but my car has trouble turning on BC my motor keeps shaking real bad . if I stop at a red light it starts shaking