Thread: 95' grand prix gtp (3.4 DOHC) is it normal for.....

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  1. #1 95' grand prix gtp (3.4 DOHC) is it normal for..... 
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    i had a blown head gasket, didnt get them professionally sent in and done (I know its highly recommended)
    but after we have done everything... she seems to be running really nice and sounds good, timing is perfect etc.

    but after driving it for even just a few minutes i'll come back (i havent drove it out of the neighborhood yet)
    i'll come home and pop the hood and it will be smoking, i truly cant find the source where its coming from... is this normal? maybe just all that oil burning off

    thanks in advance for any help!
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  2. #2 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
    I live here. Slick2500's Avatar
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    What does it smell like? Does it smell sweet? Or does it smell like oil?
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
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  3. #3 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
    GTP Level Member GrandPrixgtp2000's Avatar
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    im no 3.4 master but could the timeing belt?
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  4. #4 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
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    i honestly cant tell what it smells like.... coolant/oil i'd guess
    and nah not the timing belt.. its coming from near under the air filter, and exhaust manifold or whatever it is lol
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  5. #5 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
    GTP Level Member GrandPrixgtp2000's Avatar
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    oh i see lol, could it be an Exhaust leak?
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  6. #6 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
    I live here. Slick2500's Avatar
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    Got a video?
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
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  7. #7 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
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    not sure on exhaust leak dont think so... and no video sorry :/
    would be even harder to tell the source on video tho i would think...?
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  8. #8 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
    Moderator dsmuts's Avatar
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    Have you driven it enough to burn off all the extra crap off the motor?
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  9. #9 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
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    no definitely not dsmuts... i havent left the neighborhood, and i leave her running in the driveway, im just slowly trying to break her in, i'd hate to break down on the main road
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  10. #10 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
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    me and my brother have been getting it done... I need a real legit mechanic to check our work lol
    a few of the vacuum lines he plugged, and it runs good but it still putters a little bit, like its either losing air or not getting enough? not really sure

    and this little smoking, we are hoping is oil and coolant burning off... also a few very little drops of water coming out of exhaust still
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  11. #11 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
    Moderator dsmuts's Avatar
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    let it run for a while and burn that crap off
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  12. #12 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
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    well im afraid to now because a few on here are saying im missing my "cam position sensor" not sure what that will do
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  13. #13 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
    Moderator dsmuts's Avatar
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    Missing like it's not there at all?
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  14. #14 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
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  15. #15 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
    Moderator dsmuts's Avatar
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    looks like it's there to me.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  16. #16 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
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    needs a wire plugged into it
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  17. #17 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
    Moderator dsmuts's Avatar
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    Find the wire it couldn't have gotten far lol
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  18. #18 Re: 95' grand prix gtp (3.4 DOHC) is it normal for..... 
    SE Level Member Powertrike's Avatar
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    Just run it! I've done many headgasket jobs (even 3.4 DOHCs) and almost always have a good deal of smoke billowing up from under the hood for awhile (up to 20min) after the job is done. Grab yourself a bright flashlight and verify oil isn't leaking out of anywhere and let it run/idle. I recently did a head job on a CRV with a badly blown headgasket and it took over 50 miles of driving for white smoke to clear up from coolant in the exhaust/cat...
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