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Prev Professional Automotive Repair Technical Discussions for May 16, 2014
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Open Help Requests for GM
Help Request Answers
1987 Buick Regal GNX 3.8L MIL Lamp on VIN: 1G4GJ1176H
Ok, this one is embarrasignly throwing me for a bit of a loop. Vehicle came in for a multitude of issues, only one left is no speed signal to the ECU. Speedometer does function accurately, however the ECM is seeing no speed input. I have scoped the optical pic... Trouble codes: 24 (No VSS Signal)
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2008 Buick Enclave CXL 3.6L MIL Lamp on, limp mode VIN: 5GAEV23788
Thanks to you guys in advance. I have a 2008 Buick enclave that will basiclly go into limp mode but it is so random that we cant get it to act up. The problem has been going on for about 2 years and there was a different tech on this Buick before he quit and i... Trouble codes: U0073, U0100, U0140, C0242, U0073, P0856 (ECM- Engine Control Module ECM Indicated TCS Malfunction)
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2004 Chevrolet Silverado 2500 HD 6.6L MIL Lamp on VIN: 1GCHK231X4
Changed all glow plugs with o.e. Parts, code reoccured after approx 3 starts. Checked for output to the glow plugs,no voltage. Had b+ and ground at the glow plug module. Replaced module, cleared code, 3 starts later, code reoccured. This time i have voltage at... Trouble codes: P0380 (Glow plug heater circuit problem)
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2005 Chevrolet Trailblazer LT 4.2L door locks, power windows, no start, radio rear wi VIN: 1GNES16M85
Need some help with this one. VIN decoded as a 6cyl but it is a 5.3l v8 truck. customer lost drivers door switches approx 6 months ago but it still ran fine and everything worked from the other doors. Now towed in as a no start. Vehicle will not turn over and ...
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2006 Chevrolet Trailblazer LT 4.2L MIL Lamp on VIN: 1GNDT13S96
I have check harness for short to grounds or short to b+ Replace pcm with a use unite same problem, I check voltage to coil while cranking 10.67 volts Trouble codes: P0351, P0352, P0353, P0354, P0355, P0356
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2010 Chevrolet Camaro LT 3.6L Volt Meter VIN: 2G1FB1EV4A
Hi all, I have this camaro that we have replaced both the battery and alternator on due to the customers concern of the in dash volt meter showing a low charging condition of 12.7V. This occurs intermently but on a regular basis. While driving down the road wi...
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2003 GMC Sierra 1500 HD SLE 6.0L wont shift transfer case VIN: 1GTGK13U13
had this truck come in locked in 4 wheel drive hi, [263 NVG case], encoder motor was trying to shift but would'nt, could'nt?, removed encoder motor to try to shift T case with pliers, felt loose, sloppy, removed and disassembled T case, found gear stuck becaus...
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2013 GMC Sierra 1500 SL 4.8L 1-2 shift VIN: 1GT02ZCG8D
Hello, I have a 6L90 that slips for just a second when taking off in first gear, I was just wondering if an adaptive relearn would fix this or if it was a symptom of a stuck valve, or the wrong Torque convertor???
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Fixes & Summaries for GM
Fix/Summary Answers
1993 Chevrolet K1500 Silverado 5.7L timing
Bad EGR valve Checked timing tab knock sensor and balancer ring Thanks for all the help
17
1994 Chevrolet Camaro Z28 5.7L Starter VIN: 2G1FP22P5R
Found when the condition happened the purple wire to the starter only had 6volts at the starter if I applied battery voltage it would start right up every time. Over layed the ckt and works fine. Thanks for the info.
24
2001 Chevrolet S10 LS 4.3L Fuel tank VIN: 1GCDT13W51
CUSTOMER FOUND AND ORDERED HIS OWN TANK AS I DID NOT WANT THE RESPONSABILITY OF SHIPPING IT BACK WHEN HE DIDN'T LIKE THE LOOKS OF IT. BUT PLEASE READ CLOSELY--WHEN I OPENED THIS REQUEST , I CLEARLY STATED THAT THERE IS NOT A TANK AVAILABLE FOR THE CREW CAB. SP...
24
2005 Chevrolet Cobalt 2.2L Hesitation, Surge, Stall VIN: 1G1AK52F05
CLEANED FUSE TERMINAL AND REPLACED MAXI FUSE. NO COMPLAINTS YET. THANKS FOR THE HELP.
5
2007 Chevrolet Suburban 2500 LT 6.0L no commuication VIN: 3GNGK26K67
went to the dealer, they had no trouble communicating , removed intake manifold to get to harness for oil sender, repaired rat chewed wires in harness all good now.. Trouble codes: P0522.
3
2004 GMC C7500 Topkick C7C042 8.1L master? VIN: 1GBL7C1E44
The kick in the brake pedal was caused by the ABS activating. It was activating due to air in one of the calipers and since the ABS senses a difference in wheel speed it came on as it should have. I bled the brakes again and removed all the air and problem is ...
5
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