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Prev Professional Automotive Repair Technical Discussions for September 13, 2017
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
2000 Chevrolet K3500 7.4L abs VIN: 1GCHK39J3Y
I have this 2000 chev pickup that after driving a little bit,the speedometer starts jumping and the transmission starts shifting up and down.Watching the scanner when it acts up the vehicle speed jumps around and also the output speed jumps.it also sets an ABS...
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2006 Chevrolet Equinox LT 3.4L starter VIN: 2CNDL63F16
car came in with no crank/no start condition, when i turn the key to the on position, i get power at the relay,and to park/neutral switch, then to the pcm, the pcm suppose to supply ground to the starter relay for it to crank, but the pcm does not supply groun...
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Fixes & Summaries for GM
Fix/Summary Answers
2000 Chevrolet Monte Carlo LS 3.4L alarm module VIN: 2G1WW12E3Y
The GM alarm is a DEI but I couldn't match it to a specific model wiring diagram. But it appears that the starter disable was caused by an intermittent Passlock not the alarm. So I removed the alarm, repaired the Passlock and the owner drove the car home. T...
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2002 GMC Envoy SLE 4.2L shifting out of park VIN: 1GKDT13S22
Shift control solenoid bad. all replies were very helpful. Thanks to everyone that helped.
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2003 GMC Sierra 2500 HD SLE 6.6L poor starting VIN: 1GTHK23183
Found the main source of fuel in the oil was from the banjo fittings on the return lines at the injectors as they were a bit loose. Replaced all 8 injectors and extended crank starting problem went away. Interesting job as there were at least 3 significant fai...
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