Thread: Endless Problems

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  1. #1 Endless Problems 
    GT Level Member Pontiac Racer's Avatar
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    Noticed the car was leaking oil. Then noticed the coolant light came on and the car was burning coolant. Get the intake manifold replaced. Mechanic said VC gaskets were fine. Coolant issue got fixed (plan on swapping out the DEX-COOL sh*t this week.... hopefully. Park car in driveway for 5 minutes while running. Move car out of the driveway come back, big 4 inch diameter oil puddle on driveway. Now its gotta go back to get fixed. On top of that I have no job so money is fairly tight. And to top it all off my transmission is sh*t. It's like one thing gets fixed another issue comes up. You'd think GM would test their stuff to the extreme before selling it.... I know they're common problems, but I mean this is too much for a jobless Junior in HS lol.
    '01 GT, OnStar antenna removed, GT emblem on grille, PONTIAC bumper inlay, engine cover and insulator removed, polished stock exhaust tips, 17" Bullitt rims
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  2. #2 Re: Endless Problems 
    Turbo is the way to go. REDCRAPGP's Avatar
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    It's a old car guy nothing last forever. Check the oil sender for your leak.


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  3. #3 Re: Endless Problems 
    GT Level Member Pontiac Racer's Avatar
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    Do you have a pic of what it looks like. I have no clue where it is or what it looks like.
    '01 GT, OnStar antenna removed, GT emblem on grille, PONTIAC bumper inlay, engine cover and insulator removed, polished stock exhaust tips, 17" Bullitt rims
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  4. #4 Re: Endless Problems 
    GT Level Member Pontiac Racer's Avatar
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    Oh and aren't those engines like one of the best produced? They can't even go 100k miles without needing major repairs done!
    '01 GT, OnStar antenna removed, GT emblem on grille, PONTIAC bumper inlay, engine cover and insulator removed, polished stock exhaust tips, 17" Bullitt rims
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  5. #5 Re: Endless Problems 
    GT Level Member Pontiac Racer's Avatar
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    Actually I recall seeing the studs directly under the VC drenched in oil. I believe the studs for the exhaust manifold, but I believe it is those VC gaskets. It leaks all the way from the top to the bottom onto the subframe and then onto my driveway.
    '01 GT, OnStar antenna removed, GT emblem on grille, PONTIAC bumper inlay, engine cover and insulator removed, polished stock exhaust tips, 17" Bullitt rims
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  6. #6 Re: Endless Problems 
    I live here. 02NavyBlue's Avatar
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    They like to nickle and dime you along the way. Vc gaskets, elbows. Only big stuff is the oil pan gasket and lim gaskets. Both of which were fixed by mid 05, so I guess that year and later were the actual best engine produced. I don't think it's the engines in this platform that will cost you. Its the trans and suspension.
    2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come.
    2002 Grand Prix GT N/A 127k - Same as 06 Plus: Trans Cooler, DIY Aux Input, LED lighting, Suspension Upgrades, Tint, Retrofits.
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  7. #7 Re: Endless Problems 
    GT Level Member Pontiac Racer's Avatar
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    When I got my intake manifold changed, they put in metal coolant elbows. They weren't bad, they did it as preventative maintenance.
    '01 GT, OnStar antenna removed, GT emblem on grille, PONTIAC bumper inlay, engine cover and insulator removed, polished stock exhaust tips, 17" Bullitt rims
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  8. #8 Re: Endless Problems 
    GTX Level Member SomeDudeAtHome's Avatar
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    Quote Originally Posted by Pontiac Racer View Post
    Oh and aren't those engines like one of the best produced? They can't even go 100k miles without needing major repairs done!
    Things you said aren't really major repairs thought. There's plenty of info on this forum so you can learn to do things yourself. I've saved hundreds of dollars by reading here. Did they replace your whole manifold or just the gasket? If they did the whole thing then you got ripped off there.
    Black 98 GT bought in summer of 2009 w/28K miles- GTX Rims, Retrofit headlights, tinted tails, 20% tint all around, KYB Excel-G's, WBS Lowering Springs, 33mm Dorman front sway bar, 22mm Addco rear sway bar, BMR trailing arms, BMR STBs front and rear, ZZP control arms, Poly motor mounts, ZZP CAI, Thrasher shift kit
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  9. #9 Re: Endless Problems 
    GrandPrix Junkie HighOctaneRacing's Avatar
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    Quote Originally Posted by Pontiac Racer View Post
    Do you have a pic of what it looks like. I have no clue where it is or what it looks like.
    oil sensor is in the side of the oil pan. It has a plug with wires as well. Extremely hard to miss and extremely easy to fix. 95 and up 3800s are one of the best engines produced. They may have some minor issues but they are easy fixes provided you and/or your technician knows what to do.

    Also if you think these motors have too many problems to be listed as one of the best, think of all the other motors that aren't listed as one of the best lol. Those motors must have way more issues.
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  10. #10 Re: Endless Problems 
    Turbo is the way to go. REDCRAPGP's Avatar
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    I don't think any motors going to 100k without needing some type work.. Especially when it comes to gaskets. You may want to lower your expectations. Guess what parts are cheap.. Labor not so much but that's when you learn to do things yourself.


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  11. #11 Re: Endless Problems 
    Killa Bee Scottydoggs's Avatar
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    turn the wheels all the way to the left, then look from behind the pass side tire and look for the oil filter, to the left of the filter is a sensor with a green plug, if the plug is dripping with oil that sensor is bad.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  12. #12 Re: Endless Problems 
    I live here. 02NavyBlue's Avatar
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    The oil level sender is in the oil pan, but the oil pressure switch is the one that is known to dump oil when it goes. It is located in the oil filter adapter. Pull the passenger wheel and you can swap it out.

    Last edited by 02NavyBlue; 04-01-2015 at 09:34 PM.
    2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come.
    2002 Grand Prix GT N/A 127k - Same as 06 Plus: Trans Cooler, DIY Aux Input, LED lighting, Suspension Upgrades, Tint, Retrofits.
    Sold.
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  13. #13 Re: Endless Problems 
    GrandPrix Junkie HighOctaneRacing's Avatar
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    Quote Originally Posted by SomeDudeAtHome View Post
    Things you said aren't really major repairs thought. There's plenty of info on this forum so you can learn to do things yourself. I've saved hundreds of dollars by reading here. Did they replace your whole manifold or just the gasket? If they did the whole thing then you got ripped off there.
    If they did replace the UIM, it was a smart move because a lot of the plastic UIM have a hole burned through the egr stove pipe which causes coolant to leaking in the LIM as well.
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  14. #14 Re: Endless Problems 
    Turbo is the way to go. REDCRAPGP's Avatar
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    This is one of Scottys favorite repairs


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    Squirrels are my engine. I need a Ford Regal
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  15. #15 Re: Endless Problems 
    GrandPrix Junkie HighOctaneRacing's Avatar
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    Quote Originally Posted by REDCOMPG View Post
    This is one of Scottys favorite repairs


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    lmao
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  16. #16 Re: Endless Problems 
    Killa Bee Scottydoggs's Avatar
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    after changing it 3 times and installing a brass plug in the hole, i dont fix them no more lol

    12 dollars worth of hell right there lol

    seriously tho, they fail often, so invest in a oil pressure gauge set up, it will eliminate that sensor 100%. not like it does anything but leak oil sooner or later. it sets the light when it see's 5 psi or less, and its already to late then.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  17. #17 Re: Endless Problems 
    GT Level Member Pontiac Racer's Avatar
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    Yep they replaced the entire UIM cause coolant was leaking out of it. And I didn't neccessarily mean major repairs, but ones that are somewhat involved to fix. I'll go ahead and look at the sender tomorrow, but that wouldn't explain all the oil above the headers. That's my big hint as it's the VC gaskets.
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  18. #18 Re: Endless Problems 
    Turbo is the way to go. BillBoost37's Avatar
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    Quote Originally Posted by HighOctaneRacing View Post
    If they did replace the UIM, it was a smart move because a lot of the plastic UIM have a hole burned through the egr stove pipe which causes coolant to leaking in the LIM as well.
    Actually it's the more costly fix. Plug the coolant ports and reuse your original UIM. The permanent and cheaper fix.

    Racer: you can't really expect that 16 year old gaskets... no matter the mileage should be magically perfect. It's like saying you never expect a tire to dry rot. Yet there's rules out there stating no tire over 10 years will be mounted on a rim by a shop. Because.. after that time, the tire quality is compromised.
    I drink..so consider that when reading my posts.

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  19. #19 Re: Endless Problems 
    GrandPrix Junkie idrivejunk's Avatar
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    Sounds to me like whoever did the intake job screwed up one of the end seals or something when they laid the LIM back down.
    All Grand Prix, all the time. 69 Model J, 99 GT & GTP coupes. All junk, haha.
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  20. #20 Re: Endless Problems 
    Turbo is the way to go. BillBoost37's Avatar
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    Only thing you get from a botched end seal is a slight amount of oil seepage down the timing cover or trans and an unmetered vacuum leak.

    Yeah.. I've tested this in the field. hahaha
    I drink..so consider that when reading my posts.

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