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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 01:31 PM
    3 Pages
    1 2 3
    • Replies: 24
    • Views: 16,242
    10-29-2009, 11:40 PM 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 01:02 PM
    • Replies: 0
    • Views: 5,822
    09-16-2007, 01:02 PM Go to last post
  1. Engine Runs Cold

    New guy here, of course with a problem... I have a 2000 Silverado 1500 ECSB that had a 4.8 and MG5 5-speed. At 252k on the clock it was time to...

    Started by 2K_Silverado‎, 03-05-2019 05:35 PM
    • Replies: 3
    • Views: 602
    03-14-2019, 07:44 AM Go to last post
  2. 00 Silverado 5.3 automatic transmission problem

    My truck cant go any faster than 35 m/h it switches first and second gear but doesnt switch to third gear the speedometer works good the reverse...

    Started by Ismael Torres‎, 04-08-2018 09:21 AM
    • Replies: 2
    • Views: 1,201
    03-02-2019, 09:31 PM Go to last post
  3. No start no crank pcm no 12v reference

    so let me start out with what i have so my truck was already swapped with a lq4 and 4l60 so im in the process of swapping this 416ci and 4l80 combo...

    Started by Sierra416‎, 02-28-2019 03:18 PM
    • Replies: 0
    • Views: 95
    02-28-2019, 03:18 PM Go to last post
  4. 0411 swap problem - getting $0281 error code on autocal

    96 chevy SBSC with L31R I have performed the repin for the 0411 per the spreadsheet from Lextech. I just got my flash/tune from Blackbear, and am...

    Started by homeslice‎, 10-13-2018 07:01 PM
    • Replies: 4
    • Views: 867
    02-24-2019, 10:59 AM Go to last post
  5. Spark Knock Issue

    I need some input on a spark knock issue under light acceleration for my 2003 4.8, manual trans silverado. Went to 89 octane. Changed PCV, plugs,...

    Started by bdeboyes@ec.rr.com‎, 02-09-2019 12:36 PM
    • Replies: 0
    • Views: 135
    02-09-2019, 12:36 PM Go to last post
  6. Dương vt silicon hit đất rung thụt ngoáy

    Giá sản phẩm: 680,000 VNĐ Liên hệ:0389.346.762 Mis. Hằng Tnh năng: Kch thch điểm G, âm vt, giải tỏa sinh lý hiệu quả...

    Started by saobanggps‎, 11-14-2018 04:42 AM
    • Replies: 0
    • Views: 359
    11-14-2018, 04:42 AM Go to last post
  7. Missing on all cylinders in cammed Tahoe

    Ok guys, I have an 05 Tahoe that has about 6k on it since rebuild. About two weeks ago I got a stumble while driving in town and the dreaded...

    Started by RU11550‎, 08-04-2018 12:51 AM
    • Replies: 2
    • Views: 889
    08-15-2018, 05:18 PM Go to last post
  8. Dreaded white smoke

    Helpppp.! I have a 1994 c1500/k1500 EFI converted to carburetor 305 short box stepside Frankenstein.. i recently noticed a shit ton of white smoke...

    Started by groves069@gmail.com‎, 03-17-2018 05:32 AM
    • Replies: 0
    • Views: 454
    03-17-2018, 05:32 AM Go to last post
  9. 01 silverado 4.8 engine has miss

    I just bought a nice 01` shortbed with 200k seems to run ok but has a shake in engine po300 code and po308 put new plugs and wires ,switched coil...

    Started by oldman‎, 12-12-2016 06:30 PM
    • Replies: 4
    • Views: 1,534
    03-17-2018, 12:26 AM Go to last post
  10. Check engine

    I have a 99 4,8 silverado that has a check engine light that I think was thrown when I installed long tube headers on the truck , I have no cats and...

    Started by Issav6‎, 08-22-2017 09:28 PM
    • Replies: 1
    • Views: 487
    03-17-2018, 12:23 AM Go to last post
  11. 02 gmc Yukon xl 5.3 whole lot of nonsense

    127xxx, runs great. Just got it 3 weeks ago. Took it straight to oriellys and ran codes, co265,po171 po300, po420,po442,po446,po174. I replaced power...

    Started by 02gmcyukonxl5.3‎, 08-29-2017 06:19 PM
    • Replies: 1
    • Views: 463
    03-17-2018, 12:22 AM Go to last post
  12. 2003 chevy silverado fouling o2 sensor after closed loop

    Hi every one I am having trouble figuring this one out. The problem I am having is weird. The truck runs fine at start up. Then after I drive for a...

    Started by jaysonolson‎, 01-12-2018 12:05 AM
    fouled o2 sensor, hesitation, ruff idle, smell of fuel
    • Replies: 1
    • Views: 592
    03-17-2018, 12:19 AM Go to last post
  13. best way to flush crud out of cooling system???

    so I posted a thread a while back about having some overheating issues when towing my new to me boat and still have not resolved the issue. I still...

    Started by kewljay223‎, 08-16-2017 02:28 AM
    • Replies: 3
    • Views: 1,138
    01-15-2018, 07:57 PM Go to last post
  14. 02 gmc Yukon xl 5.3 whole lot of nonsense

    127xxx, runs great. Just got it 3 weeks ago. Took it straight to oriellys and ran codes, co265,po171 po300, po420,po442,po446,po174. I replaced power...

    Started by 02gmcyukonxl5.3‎, 08-29-2017 06:25 PM
    • Replies: 1
    • Views: 1,316
    01-15-2018, 07:46 PM Go to last post
  15. new guy w/ a question about an erod 6.2...

    fresh install crate LSA in a 94 chevy 1/2ton....the throttle quit working (drive by wire), wiring is good, any idea on how to decide whether it's ...

    Started by tomslik‎, 04-18-2017 05:08 PM
    • Replies: 0
    • Views: 1,150
    04-18-2017, 05:08 PM Go to last post
  16. Transmission codes and coolant switch problems

    I have a 95 c1500 with an 01 4.8 and 4l60e (both from same donor vehicle, trans is new but spec'd for donor truck. My first issue is coolant temp...

    Started by westofb‎, 04-10-2017 02:25 PM
    • Replies: 1
    • Views: 555
    04-11-2017, 09:28 PM Go to last post
  17. Ls obs ac signal??

    I've had my truck swapped with a h/c/i 5.3 for a while now and have driven it everywhere with no real issues....aside from these 2 and I've had...

    Started by Jmac527‎, 07-11-2016 12:13 AM
    • Replies: 3
    • Views: 1,514
    03-23-2017, 12:13 AM Go to last post
  18. 5.3 oil pan cracks

    I am in the process of removing the sludge from my 5.3 2004 Tahoe. My castech heads went bad around 130K. I pulled my oil pan and noticed there are...

    Started by Gooman‎, 03-06-2017 08:00 PM
    • Replies: 0
    • Views: 808
    03-06-2017, 08:00 PM Go to last post
  19. 2wd to awd coversion

    I have a 02 Denali for donor awd 6.0 of course I want my 05 rcsb 4.3/5spd to be converted to awd 6.0 auto. Has anyone here done this. I...

    Started by FastSierra05‎, 08-14-2016 02:43 PM
    • Replies: 3
    • Views: 1,266
    11-20-2016, 01:34 AM Go to last post
  20. 2003 chevy silve. 6.0l engine with gt2-3 cam and zo6 comp springs slit bumb in idle.

    He guys so I had a 2003 denali 6.0 lq4 complete remand done with a few modes. first valve job with zo6 beehive comp valve springs and push rods, gmpp...

    Started by jaysonolson‎, 10-24-2016 03:20 AM
    hesitation, motor bumping, smell of fuel
    • Replies: 1
    • Views: 970
    11-20-2016, 01:18 AM Go to last post

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