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Prev Professional Automotive Repair Technical Discussions for August 26, 2014
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Open Help Requests for GM
Help Request Answers
1992 Chevrolet Camaro Z28 5.0L Cuts out, Stall VIN: 1G1FP23F6N
Hi all. I've got a 1992 Camaro that doesn't want to stay running when it's cold. The coolant temp sensor register's accordingly and the fuel pressure seems to be good. I've looked in the archives as well as searched in All Data and can finds no specs. for fuel...
2008 Chevrolet Silverado 3500 HD LTZ 6.6L no fuel VIN: 1GCJC33678
this truck died while driving around back of the shop found 3 codes in it p0101 mass air out of range / p0381 glow plug heater circuit / p0087 low fuel rail pressure found data pids for mass air all readings ok at this time and no faults found with glow plugs.... Trouble codes: P0087, P0381, P0101
2010 Chevrolet Suburban 2500 LT 6.0L 5-6 shift VIN: 1GNZKMEG1A
Hello to all and thanks for the help in advance. I am usually able to figure these kind of things out through trouble codes, scan tool data, and internet, but i have no codes, nothing obviuosly out of place in the data department and no information on the inte...
1998 GMC K1500 Sierra SL 5.7L Ignition VIN: 2GTEK19R8W
This truck is a high mileage used hard ride by all appearance. It was towed in dead. I replaced ignition module to get it running. Idles fine but under load the engine bucks and misfires severely. The RPM pid on scantool shows rpm erratic and spiking as high a...
2006 GMC Savana 3500 6.0L No Start VIN: 1GDJG31U86
Vehicle intermittently cranks & doesn't start. We determined there is a voltage drop to the ignition coil? If you unplug the air bag module voltage drop goes away & vehicle starts. Un plugged all related sensors for air bag put fuse back in, NO START?? We repl...
2004 Saturn L300-3 3.0L Surge, Misfire VIN: 1G8JL84R44
Hey all you techs is Saturn land ... got one here that has me scratching my head , first thing in the morning you can get in and go for a drive and it'll miss and sputter and fart . won't barely pull itself off gum . now I have miss fires over all cylinders bu...

Fixes & Summaries for GM
Fix/Summary Answers
2007 Chevrolet Silverado 3500 HD LT 6.0L Fuel gauge VIN: 1GBJC34K07
I checked both sending units at the pcm connector. Both of them were reading correctly, but the transfer pump still wasn't being commanded on. Replaced PCM and problem solved. Thanks for all of the help.
2004 GMC Envoy SLE 4.2L MIL Lamp on VIN: 1GKDT13S74
there were a combination of small problems causing this fault, after front o2 sensor the lean code went away. the rich code that came after was caused by original spark plugs then had to change boots on coils along with different thermostat. customer has been ... Trouble codes: P0171.
2007 GMC Sierra 2500 HD SLT 6.6L Hesitation, Cuts out VIN: 1GTHK23607
OK guys the fix for this truck was new Tcm. Lots of confusion on this one. This is wired as NOT a classic,but setting classic codes. So I was having a bit of a dilemma. Testing the engine speed circuit at the tcm resulted in a very nice 5 volt sine wave. The t... Trouble codes: P0727, P0827.
2002 Pontiac Aztek 3.4L fuel control VIN: 3G7DA03E02
thanks for your help install new o/e bcm and program
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