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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 2, 2014
International Automotive Technicians' Network (iATN) - Members Only
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1994 Cadillac DeVille 4.9L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy VIN: 1G6KD52B5R
I will keep this short and simple. I have been working on this caddy for a while now and have ruled out everything more than once or twice in most cases. I have performed voltage drop tests on both the power and grounds for both the pcm and engine: ie engine g...
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2005 Chevrolet Silverado 1500 LS 5.3L Cruise Control VIN: 2GCFC13T25
The cruise will operate correctly as long as the lights are off but disengages as soon as the lights are turned on. Don't know where to turn next, looking for some expert direction from IATN members. Thanks and Happy New Year
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2007 Chevrolet Express 3500 6.6L Regeneration VIN: 1GBJG316X7
Vehicle came in for system not going into regeneration. Trouble codes P2463, P244B and P0504 were stored. Cleared all codes and attempted regeneration with tech II. System wont go into regeneration. The P0504 trouble tree doesn't come up in Alldata for this ye... Trouble codes: P0504 (Brake switch correlation), P2463 (Particulate filter), P244B
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Fixes & Summaries for GM
Fix/Summary Answers
2000 Cadillac DeVille 4.6L MIL Lamp on VIN: 1G6KD54YXY
Ok this one is fixed. On the multiple suggestions to check all the power and grounds from the pcm, I performed voltage drop checks while the car was running on connector c1 pins 19, 20, 21, 63 for 12v to the battery. And again on connector c1 pin 60 and conne... Trouble codes: P0101 (Mass Air Flow Circuit Out of Range), P0335 (CKP Sensor A Circuit Problem), P0356 (CKP Sensor B Circuit Out Of Range), P0741 (TCC Performance or Stuck Off), P1599 (CC Power Management Mode or Engine Stall), P1621 (PCM EEPROM Memory Performance).
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2001 Chevrolet S10 LS 4.3L Fuel Tank VIN: 1GCDT13W51
GOT A USED TANK THAT WAS A PAIN IN THE BUT, HARD TO FIND .AFTER THAT WENT FROM A GROSS LEAK DOWN TO ABOUT [...] SMALL LEAK FOUND FILLER NECK LEAK AND VENT VALVE HAD A SMALL LEAK REPLACED AND ALL GOOD NOW. THANKS.
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2006 Chevrolet Trailblazer LT 4.2L Misfire VIN: 1GNET16S46
Thanks for all the responses. The car has not been back in to do cylinder leak down or any further testing but I am guessing from all the responses that's what I need so I can tell him he needs some head work. Again thank you. Trouble codes: P0300.
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2009 Chevrolet Traverse LS 3.6L Mechanical VIN: 1GNEV13D99
What a story... The engine did jump time, and it did not bend any valves at all.. I have talked to several techs who work on these loads of junk daily and they all said these are JUNK engines but they've never seen a bent valve in one.. BUT, they all talked ab...
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1999 Pontiac Grand Am GT 3.4L No Start, Stall VIN: 1G2NW12E4X
I'm not sure why this request is still open because I closed it the same day I posted it and received an email that confirmed it. The fix was a new IAC motor
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