Thread: Rough idle

Results 1 to 14 of 14
  1. #1 Rough idle 
    SE Level Member 97GPJJ's Avatar
    Join Date
    Dec 2012
    Location
    grand rapids
    Posts
    94
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    So my cars starting to get a rough idle and I don't know what it is
    Can someone please help?
    97 grand prix - sold
    2000 grand prix gtp xp cam,3.2 pulley ,tog headers
    Reply With Quote  
     

  2. #2 Re: Rough idle 
    GT Level Member Erik Adam Rodriguez's Avatar
    Join Date
    Sep 2012
    Location
    bridgeport,NY
    Posts
    459
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    seafoam it
    02 grand prix gt- L67 swap, ZZP 1.0 pcm, thrasher CAI, SLP 2.5 catback, A/C delete, 02 emulator, poly dog bone mounts, 6000k projectors with CCFL halos, 12 in slotted front rotors, ported blower and intake, evap and EGR deleted, 12" kicker cvr with 1000 watt amp, alpine cda 9886 deck
    Reply With Quote  
     

  3. #3 Re: Rough idle 
    GT Level Member PontiacL32's Avatar
    Join Date
    Sep 2012
    Location
    Murray, ky
    Posts
    232
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Is the check engine light on?

    2005 Grand Prix GTP, 170,000 miles. Speed daddy headers with no cat, cone intake, MSD wires, flipped dog bones, transgo shift kit FOR SALE.
    2004 GTO six speed, stock for now.
    Reply With Quote  
     

  4. #4 Re: Rough idle 
    Moderator dsmuts's Avatar
    Join Date
    Feb 2011
    Location
    Coldwater, OH
    Posts
    15,758
    Thanks (Received)
    1
    Likes (Received)
    1
    Dislikes (Received)
    0
    Hmm maybe a little more info would help you out a lot.
    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
    Reply With Quote  
     

  5. #5 Re: Rough idle 
    SE Level Member 97GPJJ's Avatar
    Join Date
    Dec 2012
    Location
    grand rapids
    Posts
    94
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Light isnt on
    And my whole car shakes at idle
    But it still
    Idk what else to tell you
    97 grand prix - sold
    2000 grand prix gtp xp cam,3.2 pulley ,tog headers
    Reply With Quote  
     

  6. #6 Re: Rough idle 
    GT Level Member Erik Adam Rodriguez's Avatar
    Join Date
    Sep 2012
    Location
    bridgeport,NY
    Posts
    459
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    seafoam 8 bucks and done
    02 grand prix gt- L67 swap, ZZP 1.0 pcm, thrasher CAI, SLP 2.5 catback, A/C delete, 02 emulator, poly dog bone mounts, 6000k projectors with CCFL halos, 12 in slotted front rotors, ported blower and intake, evap and EGR deleted, 12" kicker cvr with 1000 watt amp, alpine cda 9886 deck
    Reply With Quote  
     

  7. #7 Re: Rough idle 
    Moderator dsmuts's Avatar
    Join Date
    Feb 2011
    Location
    Coldwater, OH
    Posts
    15,758
    Thanks (Received)
    1
    Likes (Received)
    1
    Dislikes (Received)
    0
    Maybe what you drive would help
    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
    Reply With Quote  
     

  8. #8 Re: Rough idle 
    GT Level Member Erik Adam Rodriguez's Avatar
    Join Date
    Sep 2012
    Location
    bridgeport,NY
    Posts
    459
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    a stock gt its in his sig it needs a good cleaning its plugged with carbon
    02 grand prix gt- L67 swap, ZZP 1.0 pcm, thrasher CAI, SLP 2.5 catback, A/C delete, 02 emulator, poly dog bone mounts, 6000k projectors with CCFL halos, 12 in slotted front rotors, ported blower and intake, evap and EGR deleted, 12" kicker cvr with 1000 watt amp, alpine cda 9886 deck
    Reply With Quote  
     

  9. #9 Re: Rough idle 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
    Join Date
    Sep 2009
    Location
    Rogers, MN
    Posts
    21,030
    Thanks (Received)
    21
    Likes (Received)
    45
    Dislikes (Received)
    0
    Quote Originally Posted by Erik Adam Rodriguez View Post
    a stock gt its in his sig it needs a good cleaning its plugged with carbon
    Plugged with carbon?

    What?


    I think the OP should tell us what he has done lately for maintence and repairs. Like plugs, wires, sensors etc etc etc.

    Maybe its got a huge vacuum leak along with a misfire, or a motor mount is smashed the **** up and now he is feeling everything.

    SMGPFC Member #1
    Reply With Quote  
     

  10. #10 Re: Rough idle 
    Moderator dsmuts's Avatar
    Join Date
    Feb 2011
    Location
    Coldwater, OH
    Posts
    15,758
    Thanks (Received)
    1
    Likes (Received)
    1
    Dislikes (Received)
    0
    His sig says stock gt so it could have an l36 or l26 or l32 depending on what year
    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
    Reply With Quote  
     

  11. #11 Re: Rough idle 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
    Join Date
    Sep 2009
    Location
    Rogers, MN
    Posts
    21,030
    Thanks (Received)
    21
    Likes (Received)
    45
    Dislikes (Received)
    0
    His name is also 97GP, and combine that with his sig and you get a 97 GT, like omg that was easy. L36 guys.

    SMGPFC Member #1
    Reply With Quote  
     

  12. #12 Re: Rough idle 
    GTP Level Member buck531's Avatar
    Join Date
    Aug 2011
    Location
    Gahanna, Ohio
    Posts
    603
    Thanks (Received)
    1
    Likes (Received)
    0
    Dislikes (Received)
    0
    Never heard of a car idling rough so bad it needed seafoam to fix it. Could be a misfire, vac leak, damn just about a lot of different things. Just because there's no light doesn't mean it didn't throw a code.

    How is it when you drive? Does it smooth out? Does it only do it at idle?

    When's the last time you did plugs/wires/o2, any maintenance at all on it?
    03 GS - SSAC, AEM wb, PT,SR rockers, Gen 3, 3.4, dynotech trans w/ 3.29's.

    87 Fiero GT. L67 Swap. XP, ported heads/sc. N* TB, FSIC, 2.8, 12.018 @ 113 1.71 60'.
    Reply With Quote  
     

  13. #13 Re: Rough idle 
    Moderator DanPrixGTP's Avatar
    Join Date
    Jun 2011
    Location
    Grand Rapids, Michigan
    Posts
    5,488
    Thanks (Received)
    0
    Likes (Received)
    1
    Dislikes (Received)
    0
    Jake.

    You need to give us more info to help you out.

    Read the above posts, and tell us all what has been done maintenance wise lately.

    At least start by checking for Vac leaks. Grab a can of carb cleaner and go to town on all vacuum lines. If the RPMs spike, well, then there's a vac leak.
    '97 GTP - Stage 2 Heads, 90# Springs, 1.9 Harland Sharp Rockers, Gen V, 3.0, Intake, N* TB, LQ4, FSIC, 10.5mm Wires, Poly Mounts, SLP Headers, Borla Exaust, Built Trans - SOLD*

    '08 G8 GT - 6.7L 408CI Stroker, 239/254 Cam, Fast Intake, 102mm TB, CAI, Full Exhaust.





    Reply With Quote  
     

  14. #14 Re: Rough idle 
    GT Level Member Erik Adam Rodriguez's Avatar
    Join Date
    Sep 2012
    Location
    bridgeport,NY
    Posts
    459
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    seafoam took care of my rough idle and our motors are the same year
    02 grand prix gt- L67 swap, ZZP 1.0 pcm, thrasher CAI, SLP 2.5 catback, A/C delete, 02 emulator, poly dog bone mounts, 6000k projectors with CCFL halos, 12 in slotted front rotors, ported blower and intake, evap and EGR deleted, 12" kicker cvr with 1000 watt amp, alpine cda 9886 deck
    Reply With Quote  
     

Similar Threads

  1. Rough Idle with intermittent idle miss
    By 99GTPMLA in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 10
    Last Post: 08-09-2012, 12:12 PM
  2. Rough idle
    By 7point62 in forum 3.8L V6 Naturally Aspirated (L36)(L26)
    Replies: 17
    Last Post: 03-21-2012, 01:28 PM
  3. rough idle
    By 02gtpalder in forum General Tech Discussion
    Replies: 16
    Last Post: 03-07-2010, 12:02 AM
  4. GTP Rough Idle
    By jaredhagen in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 1
    Last Post: 02-10-2010, 01:32 PM
  5. Almost rough idle
    By DesQ27 in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 19
    Last Post: 01-01-2009, 08:31 PM
Tags for this Thread

View Tag Cloud

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •