1996 - 2002 GM Truck 6.5L Turbo Diesel Fuel Filter Replacement (Chevy & GMC)

[@donaldlong9649]

can you get another black ring for the fuel filter

[@DrShock]

The retaining ring? Sure of course, ebay.us/Z9k6SR

[@donaldlong9649]

@@DrShock thank you sir!!!

[@mtl-ss1538]

@@donaldlong9649 Yes. .I have a 6.5 turbo Chevy Tahoe in New Zealand. It was converted to RHD in Canada & shipped new to NZ in 1997 Done a 190Kms & worth about NZD$25k.. Very cheep. fun fact:- only 3000 Tahoe Diesels were ever made and most were sold in other countries, other than the US It was available from 95-99 and the diesel Tahoe was a special order through GM. It’s one of the rarest modern vehicles you can get diesel fuel is NZD$1.20 per lt. + road tax of 6c per km. !!! & road tax for a 50 ton truck & trailer is 60c per km. Old gas Blazer are going for twice the price of diesels,.!!!. Gas in NZ is $1.80c per litre.

[@donaldlong9649]

@@mtl-ss1538 nice!!👍

[@hshallah76]

Mine is leaking at the bottom? Could it be the seal or do i need to replace the whole housing unit

[@NKPGarage]

Love the trick with the cup. That's a great idea!

[@DrShock]

Thanks. I'd usually recommend a clear fuel hose, but had ran out when doing this vid so improvised.

[@NKPGarage]

@@DrShock gotta work with what you have!

[@Boostedpapaaa]

Amazing video explain how to bleed air out thank you!

[@chicagomike6666]

First--thanks for posting all these vids! I have a '94 HD C2500 suburban...and can't tell you how much work I've done using your videos as a guide...anyway...I just had the same problem--seal was bad and almost looked "too big"-- I installed it and started driving and had drivers honking at me and yelling about the "leaking gasoline"--pulled into a parking lot--and like you--discovered it was leaking out of the top cap...walked over to an autozone for replacement--and meanwhile---one of the helpful "observers" called the Chicago fire department and a truck arrived...luckily the captain had a Duramax Sierra and was understanding...but boy...lots of drama.

[@jontangenes9275]

Remember also sometimes to clean the little fuel strainer that is stepped down on the senter shaft in the filterhouse. Have to kind of, jack it up with a hook. There also rearly som "mud" in the bottom of the filterhouse wich have to be cleaned. And how old are your fuel lines`? The original GM lines ar wery good qality. But after 25 years, it is high time for a check.

[@topgunlife]

Thank you

[@rodrigovalenzuela7390]

Thank you so much for your vudeo

[@rezkiz2930]

Thanks!

[@jimmylee377]

thanks for the good video.

[@vicentegonzales3852]

Thumb up bro

[@spencerholmes4890]

When your fuel filter comes out black it means oils slipping past and getting into your fuel bowl... Put new o rings on my injecters and they stop turning black on my

[@pedroconde1622]

great thank

[@maniagokm3186]

Curious if youve had your heater element at the bottom of the filter housing start to leak. Found mine leaking today, and a quick google search turned up as a fairly typical issue with higher miles. Gonna pull mine and see if I can get away with just an oring change. Something to be aware of. Thanks for all your videos.

[@DrShock]

Thanks, haven't run into that issue before.

[@jontangenes9275]

The o-ring there is getting stiffer and sqeezed over time, so this down part is getting loose. O-ring size: 46.7/2.7mm.

[@JohnWoodland-o3i]

I noticed you didn't drain the remaining fuel in the filter housing... if the filter needed changing, wouldn't the fuel in the filter housing just clog the new filter if it isn't drained?

[@DrShock]

There's no fuel drain required on this model GM during a filter change (per the service manual). What you may be referring to is the _water drain_ line and you only need to open that brass T valve up if the WIF (water in fuel) lamp comes on to drain out water (or you want to diagnose a fuel flow concern). The residual fuel in the housing would have already gone thru the previous media.

[@BlackEpyon]

I had a crack on the bleed valve on the top of the filter, and it was hemorrhaging fuel everywhere. Difficult to source a replacement valve without replacing the filter entirely, so I ended up fusing the plastic with a soldering iron. Stopped leaking. I have a very important question though. WHY is there an "upper manifold?" Neither of my 6.5's came with it, and it appears to serve no purpose whatsoever besides decoration. If anything, it just gets in the way when you need to work on the engine.

[@DrShock]

I would speculate that the engineers went this aluminum upper manifold design approach as needs on the Detroit Diesel V8 evolved from naturally aspirated to electronically fuel injected. Perhaps you meant the _engine shroud_ , or cover, here though rather than _upper manifold_ which is plastic and purely decorative and was a glimpse at all the coverings GM engines have today. ;-)

[@hagerz]

Great job

[@vladpierre2694]

I bought a newer type of filter, not exactly like the one in the video. Installed. Did the lift pump test with the key in ACC on my RV (1996 Itasca) Nothing. No fuel coming up, just a clicking sound at about 1 second intervals. Actually.. even removed the filter altogether and put the key in ACC. Nothing happens in that little hole, just some diesel sitting there and a clicking sound. Means fuel pump problem?

[@DrShock]

For the years this video covers, either a defective lift pump kzbin.info/www/bejne/eau2h2mHjZugpZY or the fuel line is clogged up (less likely). For older years, either the oil pressure switch (OPS) as this is part of the lift pump activation circuit in older models, or the lift pump.

[@vladpierre2694]

👍 Thanks for the help. I didn’t find a pump like the one in this video anywhere along the frame of the RV. Did some research. Looks like on my P30 1996 Itasca RV the fuel pump assembly is nearly inside the fuel tank and requires either dropping the tank or cutting a hole in the floor to access it. I’d like to make sure that’s the problem and then replace it if that’s the problem.

[@83malibuwagon]

Is the location the same on all 6.5's? I own a 98 cutaway van.

[@DrShock]

No, I don't think so. The vans have a different arrangement due to the more limited space. I haven't look at a van in a long time, I believe it's under the drivers side though. Not in the engine bay. Please comment back and confirm if so.

[@topsskug9329]

My silverado 6.5 works just fine, but when i tried to bleed the filter from air, nothing comes out, i hear the fuel pump working under the truck but nothing comes ... whats wrong then?

[@DrShock]

Are you using a genuine OEM (GM/Stanadyne) filter? I've not seen it with OEM, but some aftermarket filters with the integrated cap can have a defective air vent valve on them.

[@brianggfancy]

My 95 sierra is the same method and filter

[@Zach_on_repeat]

I was told to bleed the filter on my 95. I cracked it while it was running and no fuel came out. Any suggestions?

[@DrShock]

If you're sure you opened it like I showed here, I'd suspect if you have a weak lift pump then - check this other vid of mine kzbin.info/www/bejne/eau2h2mHjZugpZY When the lift pump goes bad, the injection pump will maintain a prime until you change the fuel filter. That's usually when someone finds out it's bad, if that's the case. The 96 and later you can listen to the lift pump during the glow plug cycle but I'm not sure if the 95 and earlier will as they use the oil pressure switch to power the pump up.

[@Zach_on_repeat]

@@DrShock I'm pretty sure you can hear it on mine. It sounds like ticking

[@ryanburbridge]

Thanks for the post. Ever thought of relocating it? Any mods done on the truck

[@DrShock]

Nope, it works just fine where the GM engineers placed it. Never really been a mod fan being an engineer myself, but my one concession to was relocation of the Stanadyne PMD to the front bumper as the original design location was simply f'd up. Someone at GM clearly forgot about the transistor lifespan impacts of engine heat soak after the fuel flow stops.

[@BlackEpyon]

@@DrShock Yeah, that PMD either needs to be relocated, or a big-ass heat sink installed to prevent it from overheating.

[@DrShock]

@@BlackEpyon He's not talking about the PMD, he's talking about the fuel filter module.

[@bwagenberg]

Myblack ring was very stuck. Strap wrench and punch didn't work. What would you do?

[@DrShock]

It's plastic on plastic, so its not going to be corroded in place. More likely over torqued to begin with. First, be sure you are trying to loosen, not tighten it, direction wise. Then, I would PB blaster the top circumference of the ring (alot of thread clearance for the penetrating oil to seep in with this plastic ring area). Then try to tappy tap (small quick taps not large whacks) a large punch along the ring ridge in the loosen direction to get it to break away the over torque. The ring is replaceable if it breaks.

[@memorialnine2983]

Do you know where I can find bolts\studs for the intake manifold on a 6.5

[@DrShock]

There are three different lengths/types, and GM has discontinued all of them. They show up on eBay as NOS from time to time. But used salvage yard pulls is what I would do if the vehicle is missing any.

[@williammoyer6509]

Truck recently broke down. We are getting fuel to the filter but nothing past that point, any suggestions. Thank You.

[@DrShock]

So you can get fuel exiting the air bleed of the fuel filter with the key turned and the lift pump going but nothing past that? I presume you have fuel pressure to the injection pump, and if so it can be many things causing a no start condition. Here's a good checklist to go thru before you have to resort to the GM service manual diagnosis - www.accuratediesel.com/nostart.html

[@tomasavendano635]

I read that the water fuel separator is nearby, is this true?

[@DrShock]

Yeah, it's all part of the fuel module assembly that you insert the filter into. Also the fuel heater element is part of this same module.

[@solraczurc7210]

Excuse me for the question I have a 6.5 GM engine mechanical diesel pump which was repaired, i also put on a water pump and fan clutch now when the engine has about 10 minutes on and it runs, it does not want to go over 20 or 25 mph, something else is that when accelerating it and taking the accelerator off it turns off it was fine before repairing the diesel pump any help will be well received thank you very much

[@DrShock]

I presume by _mechanical_ you mean a DB2 ala pre-1994 model. If so, was the timing redone? Whenever you move the injection pump, the timing has to be redone.

[@solraczurc7210]

@@DrShock yes db2 pump

[@solraczurc7210]

@@DrShock We put the engine on time and removed the injection pump, when they repaired it the engine did not move and we placed it in the same position

[@DrShock]

These kind of problems are exceedingly difficult to diagnose remotely, over a comment board. But given your description that nothing else has changed (before/after) relating to air or fuel but the injection pump - I'd have to suspect that IP rework if the timing was spot on. This could also be a sensor harness damaged, during the pump swap out. My experience is with the DS4, but if it were me I'd start going over all the sensor wiring in that area for collateral damage. I'd next talk with my pump rebuilder about what may have gone awry in that.

[@solraczurc7210]

@@DrShock I came to think that it could be something like a sensor connector because the truth is nothing additional was done tomorrow I will be verifying thanks for helping I hope to have better news soon I will keep you updated thanks

[@ESLinsider]

How to remove screen?

[@DrShock]

There's no removable screen on the fuel filter for this model. Perhaps you are thinking of the fuel filter manager housing, if so check here kzbin.info/www/bejne/kHWTnmOQm8h0eNE

[@xXxXxDragonslayerxXxXx]

I got a 95’ does the bleeding still apply?

[@DrShock]

If your filter housing assembly looks like what I show in the video, I would say yes to the manual bleed. For the jumper wire approach, I'm not sure if that's applicable.

[@paolosangil5535]

Hello i just wanna ask about mine chevy truck like yours theres no function acceleration pedal how can we do about this problem?

[@creeplife2802]

I have a 96 6.5, my fuel filter has a complete plastic cap

[@DrShock]

Some aftermarket filters such as Fram have a one piece design rather than the separate retaining ring used by GM/Stanadyne.

[@grumblyone3334]

Be REALLY observant about that! My 98 has a 2 piece, (as in the video), but O'rielly's gave me a 1-piece. DOES. NOT. WORK. Was hemorrhaging fuel everywhere. Make sure you get the same as the OG.

[@jus7046]

I have a 98 chevy, need to replace the transmission, any options???

[@eljerryr259]

My truck does not start. I just installed a pmd relocation kit and still nothing. I opened the valve like you did and i got no fuel. What can be the cause if this. Clogged filter or a bad pump? Also is there a tool to remove the black on the fuel filter? I tried it by hand and it was too hard

[@DrShock]

If you're not getting any fuel in the run position on the ignition key, and you have a 1996 or newer, it's a lift pump problem - kzbin.info/www/bejne/eau2h2mHjZugpZY as for the oil filter there may be a dealer type tool but I've not used one. If it were stuck I'd give a strap type wrench a try.

[@eljerryr259]

@@DrShock thanks. I replaced the lift pump but as i unscrewed the lines i got no diesel coming from the tank. Yes it has diesel i had pump about 10 gallons a couple days before and when i replaced the pump i put a gallon of diesel on it. Is there another pump on the tank? Sorry my knowledge about diesels is bad and i just bought it because i like it lol.

[@DrShock]

@@eljerryr259 You never mentioned what year, and what make and model of truck. It matters as to whether you have a dual tank type truck, and whether you have a 1996 or newer.

[@eljerryr259]

@@DrShock sorry. It's a 97 chevy tahoe(blazer) with a 6.5

[@DrShock]

@@eljerryr259 Ok, so unlikely to have dual tanks. There's just the one lift pump and you just changed it out. On 1997 when you first turn the key to the glow plug cycle, the lift pump will be powered up for a moment. You should be able to hear it buzzing from inside the truck in fact. If you're not able to hear the pump, I'd check with a voltmeter at the lift pump harness connector that you're getting power to it since it's a new one. If you are getting power / hearing it, but still no fuel flow at the filter, I'd be instead checking for an obstruction at the tank. Perhaps a clogged fuel sender sock. If so, this other video of mine may help you - kzbin.info/www/bejne/mqiceZyXapqsr9U

[@caminante152]

It's good, but you never showed how to take out the old filter?

[@DrShock]

I most certainly did at 2:35 What's going on there is removing the defective replacement filter, before comparing it to an used filter, and then installing a brand new ACDelco filter afterwards.

[@Nykstudio]

love the gehtto, not the real gehtto the mexican mechanic gehtto

[@richarddool3238]

U for got to say 1994and 95

[@DrShock]

Yep, definitely the same filter part number and fuel filter housing. At the time I didn't have access to an earlier truck to verify.

[@richarddool3238]

@@DrShock yes ok understand

[@wilmercuervo3046]

Help my

[@MrGusflyer]

thank you

[@freebuilder007]

Thank you.