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Forum: Diagnostics & Troubleshooting

Powertrain | Performance | Electrical |

  1. Sticky Thread Sticky: Crankshaft System Variation Learn Procedure

    The CKP System Variation Learn procedure concerning the relationship of the Crankshaft Postion Sensor, or CKP, to the crankshaft reluctor was...

    Started by RedHeartbeat‎, 09-16-2007 02:31 PM
    3 Pages
    1 2 3
    • Replies: 24
    • Views: 16,739
    10-30-2009, 12:40 AM Go to last post
  2. Sticky Thread Sticky: Idle Learn Procedure

    The Idle Learn procedure may be required when: 1.) The PCM loses power or ground (battery or PCM disconnected) 2.) Service programming is performed...

    Started by RedHeartbeat‎, 09-16-2007 02:02 PM
    • Replies: 0
    • Views: 5,951
    09-16-2007, 02:02 PM Go to last post
  1. Help!!backfire problem

    engine light was on ,started noticing my truck when i first get on the gas it backfires through the cold air intake real loud kind of embarrasing...

    Started by CHEVROLADE‎, 06-28-2011 11:37 PM
    10 Pages
    1 2 3 ... 10
    • Replies: 99
    • Views: 7,904
    07-23-2011, 08:42 PM Go to last post
  2. Head off...pics

    took the passenger side head off since #8 had the low reading of 90 compression but seems like everything is ok....but the #8 was the most dirtiest...

    Started by CHEVROLADE‎, 07-24-2011 03:12 PM
    8 Pages
    1 2 3 ... 8
    • Replies: 73
    • Views: 4,758
    07-29-2011, 06:12 PM Go to last post
  3. Eaton Charger + AFM (DoD) removal issue

    Hey guys. Kind of a troubleshooting post, but does involve dod delete and an eaton (tvs) charger. Gotta 2011 truck, 5.3L, 6speed auto. ...

    Started by farmtruc‎, 05-15-2011 04:18 PM
    6 Pages
    1 2 3 ... 6
    • Replies: 53
    • Views: 6,884
    05-22-2011, 10:21 PM Go to last post
  4. This Sucks....

    Second time in 4 months. Last time i Had a full rebuild dont and upgraded my cam to a 224/228 .581 .588 110lsa with a 3800 circle D...

    Started by Red03SilSS‎, 01-11-2011 04:02 PM
    5 Pages
    1 2 3 ... 5
    • Replies: 49
    • Views: 6,176
    01-27-2011, 12:12 AM Go to last post
  5. Trans issue again

    Ok I'm taking all advice on this, it's getting old and expensive, factory trans went out 3/4 clutch pack, so I replaced it with a rebuilt trans from...

    Started by bootlife‎, 01-14-2013 01:04 AM
    5 Pages
    1 2 3 ... 5
    • Replies: 49
    • Views: 4,466
    04-09-2013, 01:46 AM Go to last post
  6. Transmissin Hot displayed

    There aren't any issues that can get by us when troublehshooting an issue at the shop, but this one we just can't resolve. Transmission Hot is...

    Started by farmtruc‎, 09-14-2012 06:41 PM
    5 Pages
    1 2 3 ... 5
    • Replies: 47
    • Views: 6,215
    05-15-2013, 08:45 PM Go to last post
  7. Truck isnt getting spark anymore. im at the end of my rope lol

    So im gonna tell the whole story and you guys tell me what you think. I was getting ready to drop my trans pulled the DS bolts something came up...

    Started by Botlfed‎, 01-19-2014 04:14 PM
    5 Pages
    1 2 3 ... 5
    • Replies: 46
    • Views: 4,728
    02-05-2014, 07:25 AM Go to last post
  8. Driveline and Tire vibration , my '11 brand new HD diesel

    Ya, it sucks! As some know, I bought a new '11 ccab, shortbox, 2wd, HD diesel. The moment I drove it off the lot, it had a bad tire vibration,...

    Started by farmtruc‎, 10-17-2011 09:19 PM
    5 Pages
    1 2 3 ... 5
    • Replies: 44
    • Views: 3,041
    11-15-2011, 11:50 PM Go to last post
  9. Converter bolt backed out or broken flexplate...

    One or the other happened to my truck in the last day or two. Got a tick that is getting noticeably louder from that area. Doesn't seem to happen...

    Started by pl4yboy‎, 01-31-2012 09:46 PM
    5 Pages
    1 2 3 ... 5
    • Replies: 42
    • Views: 3,995
    02-18-2012, 02:06 AM Go to last post
  10. 4L80E No Reverse!

    Basically I lost 3rd and reverse so I tore it down and did a complete rebuild. Now I just have no reverse, 3rd works just fine. The weird thing...

    Started by Kros383SS‎, 08-22-2009 10:51 PM
    5 Pages
    1 2 3 ... 5
    • Replies: 41
    • Views: 36,536
    04-21-2011, 12:19 AM Go to last post
  11. Question Losing fuel pressure

    Wanted to run this by you guys and get some ideas. This is a 2004 ext cab with 6.0, cam, headers, and so on. Was runing a bone stock fuel system...

    Started by ecld_07‎, 01-15-2013 07:28 PM
    5 Pages
    1 2 3 ... 5
    • Replies: 41
    • Views: 2,968
    01-18-2013, 02:24 PM Go to last post
  12. no fire after swap

    I just done a 4.3 to 5.3 swap. The pcm was tuned by nelson. The injectors have pulse from the pcm but the only plug that has fire is #1. The strange...

    Started by jeast‎, 04-11-2012 03:45 PM
    5 Pages
    1 2 3 ... 5
    • Replies: 40
    • Views: 5,762
    06-08-2012, 12:32 PM Go to last post
  13. Head and Piston carnage!!!

    Finally got around to tearing my engine down after last weeks breakdown. This is what I found

    Started by AFSP1211‎, 11-19-2011 09:15 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 39
    • Views: 2,540
    11-23-2011, 10:23 PM Go to last post
  14. Throwing P0496

    Truck threw this code last week before I left for FL: P0496 Definition: Evap flow during a non-purge condition The ECM has detected pressure...

    Started by 04SilverBullet‎, 08-01-2011 09:31 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 37
    • Views: 6,063
    10-08-2011, 10:24 AM Go to last post
  15. 96 z71 backfire

    OK here's wats up... I got a 96 k1500 z71 with the vortec 5.7 BS. My check engine light came on so I took my code reader and scanned it saying...

    Started by bigazz71‎, 10-19-2011 11:59 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 37
    • Views: 5,454
    11-15-2011, 08:39 PM Go to last post
  16. Wheel question with 4/6 drop

    Here is my delima. I currently have on all 4's, MB Precise 20X10 wheels with -25 offset, wraped in 295/40-20's. I have a 4/6 drop on my 2wd 04...

    Started by zts gixx‎, 09-14-2010 10:43 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 36
    • Views: 4,978
    09-21-2010, 04:06 PM Go to last post
  17. New build high oil pressure concern

    Anyone just get there build going and is in the process of breaking in the engine and has a concern with high oil pressure? :)

    Started by farmtruc‎, 03-09-2012 09:53 AM
    4 Pages
    1 2 3 ... 4
    • Replies: 36
    • Views: 4,471
    03-15-2012, 12:21 AM Go to last post
  18. Bad fuel pump?

    Well with the motor off and ignition on, i get 50 psi but it quickly drops to 5 psi. So its makes the truck hard to start, but with the truck running...

    Started by 6.0vortecchevy‎, 06-20-2011 08:18 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 35
    • Views: 2,608
    07-05-2011, 08:46 PM Go to last post
  19. Need info. Has this ever happend or have you heard of this happening.

    Alright was working on installing my new cam in my ls1. The block has brand new bearings in it. We mic'd them and they cam out to BEST we can tell...

    Started by Show&Go‎, 01-22-2011 12:33 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 33
    • Views: 4,252
    01-27-2011, 05:52 PM Go to last post
  20. Pushrod Failure . .. Thoughts . . ? ???

    I drove the truck about an hour and a half to get tuned. Then left it to be tuned. Picked it up and it was ticking. It has been ticking for a while....

    Started by zeake‎, 12-14-2010 06:59 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 32
    • Views: 5,853
    12-17-2010, 12:47 PM Go to last post

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