Thread: replaced head gasket and now im stumped !

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  1. #1 replaced head gasket and now im stumped ! 
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    hello im new here ,but figured i would see if anybody could help me . I have a 02 grand prix with the 3.1 im it ,and it blew a head gasket early this week ! well i bought the head set ,and tore it down . took the head to be checked cleaned and surfaced . it was fine . so i put it all back together following all tourque specs and what not . When i was done the car fired rite up ,but has a terible miss to it ! i double checked all my plug wires and they are correct i have new plugs . i went back and double checked all my wires and it dont appear that i missed any of them . so do any of you guys have an idea ?
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  2. #2 Re: replaced head gasket and now im stumped ! 
    I live here. SlowNA06's Avatar
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    Scan for codes.

    The engine has an audible/visual miss? Um, maybe make sure the wires all go to the right spot. Make sure injectors are all plugged in.
    Irridium spark plugs last 100k mi and work just as well as copper. Copper is a waste on N/A and only lasts 15k mi. Don't use Platinum.
    Use 195* tstat unless you can thoroughly explain why not; 99.9% don't need a lower temp.
    Almost any oil filter, ever, is of higher quality than ACDelco. Spend $6+.
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  3. #3 Re: replaced head gasket and now im stumped ! 
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    im going to hook scanner to it in the morning and yes you can hear and see the miss i did double check all the wires goin to do that once more also . im not sure about the injectors though have not double checked them yet . another thing i for got to mention it has this really really bad stink bomb smell now that it didnt have before . you no like rotten eggs , when i started it inside the shop it made my eyes water in a matter of seconds 1 it wasnt doing that before i no for a fact . when i was checking for the haed gasket i ran it for awile in the shop and there was no smell like that
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  4. #4 Re: replaced head gasket and now im stumped ! 
    GTP Level Member L36 Killer's Avatar
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    rotten egg smell is a bad catalytic converter I believe. Might wanna check it out, if it's clogged it could cause a misfire
    "SHELLY" GRAND PRIX GT 02. SLP HEADERS & EXHAUST, K&N CAI, BMR REAR SUSPENSION AND STRUT BRACES, 180 T-STAT, AGX STRUTS, EIBACH SPRINGS, OVERKILL PCM, YELLA TERRA 1.7 ROCKERS, GT1 CAM, SEXMAN PORTED & POLISHED HEADS, STAGE 2 PORTED TB
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  5. #5 Re: replaced head gasket and now im stumped ! 
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    Take your front o2 sensor out and see if the miss goes away
    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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  6. #6 Re: replaced head gasket and now im stumped ! 
    GT Level Member GTX's Avatar
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    did you put the pushrods back in correctly


    COMP G
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