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  1. Misfire under load, increase with engine warmth and run time

    Started by Wakingcrow, 08-12-2020 07:26 PM
    4 Pages •
    1 2 3 ... 4
    engine, fine, misfire, misfires, runs
    • Replies: 65
    • Views: 19,454
    Last Post: 07-17-2021 10:26 AM
    by mark97564  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  2. P0300 (Random misfire) Shows on 3 & 6 only. looking for help.

    Started by BrandonHall10, 02-29-2020 09:00 PM
    12v, light, misfire, misfires, test
    • Replies: 18
    • Views: 4,438
    Last Post: 03-16-2020 02:44 PM
    by BillBoost37  Go to last post

    Forum:
    General Tech Discussion

  3. What is a normal amount of misfires?

    Started by LouF, 08-20-2019 06:08 PM
    amount, misfires, reader, run, show
    • Replies: 6
    • Views: 2,711
    Last Post: 08-20-2019 09:29 PM
    by bandook  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  4. Misfires after having new spark plugs & cat put in.. *yay* (+ hard starts)

    Started by wickedfrisone, 06-24-2018 06:00 PM
    6 Pages •
    1 2 3 ... 6
    check, engine, fuel, misfires, put
    • Replies: 109
    • Views: 9,295
    Last Post: 10-30-2018 06:30 AM
    by BillBoost37  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  5. New GTP.. and a whole new set of problems.

    Started by ToxiccKiwii, 11-16-2014 06:59 PM
    fuel issue, misfires
    • Replies: 2
    • Views: 866
    Last Post: 11-16-2014 07:18 PM
    by ToxiccKiwii  Go to last post

    Forum:
    Introductions/Noob Questions

  6. Engine chugging/ multiple cylinder misfires??

    Started by dillinger1989, 08-30-2013 12:32 PM
    chugging, chugging or, cylinder, cylinder misfire, engine, misfires, multiple, p0300, temp gauge
    • Replies: 5
    • Views: 1,417
    Last Post: 08-30-2013 09:04 PM
    by genki  Go to last post

    Forum:
    General Grand Prix Discussion

  7. scangauge showing misfires?

    Started by IntimidatorSS, 08-24-2013 10:00 AM
    misfires, scangauge, showing
    • Replies: 5
    • Views: 878
    Last Post: 08-24-2013 12:21 PM
    by IntimidatorSS  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  8. Random misfires........

    Started by Timing, 08-21-2013 07:20 PM
    misfires, random
    • Replies: 14
    • Views: 1,218
    Last Post: 08-22-2013 08:21 PM
    by Timing  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  9. AL 104 spark plug showing misfires...

    Started by guimond47, 09-18-2011 12:35 AM
    104, misfires, plug, showing, spark
    • Replies: 8
    • Views: 1,730
    Last Post: 07-19-2013 06:21 PM
    by 94GrandPrixSE  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  10. p0300 random misfires

    Started by Timing, 04-29-2013 08:43 PM
    misfires, p0300, random
    • Replies: 5
    • Views: 1,572
    Last Post: 04-29-2013 09:44 PM
    by Timing  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  11. Multiple Misfires After Radiator Install

    Started by sdavis11b, 01-31-2013 01:51 PM
    install, misfires, multiple, radiator
    • Replies: 15
    • Views: 1,330
    Last Post: 02-06-2013 03:15 PM
    by sdavis11b  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  12. misfires at idle

    Started by DoubleBlown, 01-16-2013 12:07 PM
    idle, misfires
    • Replies: 9
    • Views: 1,521
    Last Post: 01-19-2013 07:08 PM
    by Fivefingerdeathpunch  Go to last post

    Forum:
    Turbo

  13. Misfires?

    Started by Ultra440, 09-17-2012 07:11 PM
    misfires
    • Replies: 6
    • Views: 1,247
    Last Post: 10-27-2012 03:45 PM
    by Dee23  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  14. Engine go put-put-put-glug-glug-glug - Muliple misfires - lost 03 GP GT

    Started by jcgre3n, 10-01-2012 09:59 PM
    engine, lost, misfires, muliple, putputputglugglugglug
    • Replies: 19
    • Views: 2,119
    Last Post: 10-02-2012 11:31 PM
    by Dee23  Go to last post

    Forum:
    General Tech Discussion

  15. Analyzing Ignition Misfires

    Started by Tony Mendez, 09-17-2012 08:29 PM
    analyzing, ignition, misfires
    • Replies: 1
    • Views: 1,760
    Last Post: 09-17-2012 08:58 PM
    by Fivefingerdeathpunch  Go to last post

    Forum:
    How To Write-Ups/Tech Tips

  16. Random misfires

    Started by chrisLB, 09-13-2012 06:18 PM
    misfires, random
    • Replies: 2
    • Views: 866
    Last Post: 09-13-2012 07:39 PM
    by chrisLB  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  17. misfires after cam install

    Started by gtptim, 04-25-2012 03:38 PM
    3 Pages •
    1 2 3
    cam, install, misfires
    • Replies: 41
    • Views: 5,425
    Last Post: 05-05-2012 04:21 AM
    by Poil336  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  18. Stalls when warm and mis-fires at 4000 RPM

    Started by jrowell, 02-12-2012 06:18 PM
    4000, hesitatio, mis-fire, misfires, rpm, stall, stalls, warm
    • Replies: 7
    • Views: 2,063
    Last Post: 02-15-2012 10:56 PM
    by Fivefingerdeathpunch  Go to last post

    Forum:
    3.8L V6 Naturally Aspirated (L36)(L26)

  19. Bent plug tips and misfires

    Started by Knightmare, 07-31-2011 08:25 PM
    4 Pages •
    1 2 3 ... 4
    bent, issues, misfires, plug, tips
    • Replies: 62
    • Views: 4,897
    Last Post: 09-02-2011 11:45 AM
    by SliceTheRice  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  20. car misfires

    Started by backinblackgtp, 02-20-2011 03:29 PM
    car, misfires
    • Replies: 6
    • Views: 1,478
    Last Post: 03-24-2011 03:25 PM
    by KeithGTP03  Go to last post

    Forum:
    Engine

  21. Bad surprises w/ header install :( abs/tcs light.. Crappy mpg, misfires :(

    Started by 9ordohz, 03-17-2011 03:49 AM
    abs or tcs, bad, crappy, header, install, light, misfires, mpg, surprises, w or
    • Replies: 18
    • Views: 2,918
    Last Post: 03-24-2011 02:07 AM
    by taman86  Go to last post

    Forum:
    General Tech Discussion

  22. Misfires in Cyl 4

    Started by mousemonster1232, 03-06-2011 05:33 PM
    cyl, misfires
    • Replies: 11
    • Views: 1,786
    Last Post: 03-09-2011 02:38 PM
    by BillBoost37  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  23. misfires??

    Started by paulaxe, 10-07-2010 03:57 PM
    aeroforce, misfires
    • Replies: 1
    • Views: 1,620
    Last Post: 11-23-2010 04:09 PM
    by FloridaHorseman  Go to last post

    Forum:
    Engine

  24. New PCM/Throttle Body... Misfires

    Started by Bedwards, 05-05-2010 08:20 PM
    body, misfires, pcm or throttle
    • Replies: 11
    • Views: 1,076
    Last Post: 05-10-2010 03:34 PM
    by Lawngoose  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  25. No more power

    Started by 03gtdude, 03-10-2010 01:03 PM
    2 Pages •
    1 2
    lack of horsepower, misfires, poor economy, power
    • Replies: 32
    • Views: 3,460
    Last Post: 03-24-2010 01:07 PM
    by CTKGP09  Go to last post

    Forum:
    3.8L V6 Naturally Aspirated (L36)(L26)

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