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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 16, 2019
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Open Help Requests for GM
Help Request Answers
2003 Chevrolet Impala 3.4L No drivability probl VIN: 2G1WF52E33
Have a p 0135 keeps resetting followed directions to identifix has 12 volts on pink wire key on ignition off. Crank car has no ground replace pcm from flag ship 1 and new [...] with delco and a denso still has no amp draw on scanner but says it does tur... Trouble codes: P0135 (O2heater bank 1sensor1)
2009 Chevrolet Malibu LT 2.4L Surge
P0101 code set after 30 min driving car loses power like if the fuel pump was bad. It happens only when driving after 60 mpr. Erase the code and the car can go for another 30 min till the code sets . On the live data there is a maf gs/sec 25.32 maf htz 482...
2014 Chevrolet Silverado 2500 HD LT 6.6L MIL Lamp on VIN: 1GC1KXC85E
Before changing heater, dash read "Service Exhaust Fluid" 51 miles remain and it still says this, it wont reset. Maxisys says tank is 100% full which it is not, it only has about 3 gallons in the tank, the buttons on the dash too toggle between messages do... Trouble codes: P20B9, P21DD
2001 GMC W3500 Forward W3S042 5.7L No Start VIN: 4KDB4B1R11
Truck towed in for no start from a shop down the street. No MIL or data, No wiring diagrams for heavy duty. So I crossed the PCM number to a van and got it run by back feeding battery power to pins 20 & 57. MY QUESTION IS WHERE IS BATTERY POWER TO THESE'S ...

Fixes & Summaries for GM
Fix/Summary Answers
1995 Chevrolet K2500 Cheyenne 7.4L Poor Idle Quality, Hesitation, Stall VIN: 1GCGK29N9S
Thank you all for responses. This vehicle fuel pressure spec. is 26-32 psi. It does not have an iat sensor. I could not find a vacuum/intake leak. All great ideas. After tearing my hair out this one is fixed. The fix was new injectors.
2002 Chevrolet Silverado 2500 HD 6.6L No Start VIN: 1GCHK23132
thanks guys replaced all eight injectors road tested all good thank guys . the information you guys gave was excellent thanmks again Trouble codes: P1094.
2003 Chevrolet Astro 4.3L Trans VIN: 1GNEL19X63
Many replies stated different ways to test a catalytic converter. You all were correct. The easiest way for us was to loosen the exhaust before the converter. Did that and test drove and it had all kinds of power. Replaced converter and everything works fi...
2003 GMC Yukon XL 1500 SLE 5.3L Brakes VIN: 1GKFK16ZX3
Unfortunately the owner came back to town early, right after my update, and needed the vehicle until he went out of state again. Then his daughter needed it and I haven't had it back for any further diagnostics. I don't want to close this without a fix, but...
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