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Prev Professional Automotive Repair Technical Discussions for April 12, 2008
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Open Help Requests for GM
Help Request Answers
1994 Chevrolet K1500 Cheyenne 5.7L No Start VIN: 1GCEK14K2R
This truck runs with starting fluid, the fuel pressure isgood, power to injecters is good, no injecter pulse w/ noid light (ground). I lost my ALLDATA for now so if anyone can get me the terminals and wire colors for dist. ref pulse, injector output and ecm gr...
1999 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 2GCEK19T8X
The truck seems to run fine, but the MIL lamp is on. My scanner is very basic, but it pulls codes well. This vehicle is not "throwing" an ECU code. What I receive is a message: ISO 4191. --In spite of the fact that my scanner says no codes exist, I can clear ...
1997 GMC Savana 3500 5.7L Misfire, MIL Lamp on VIN: IGDJG31R9V
hi guys this i ton is giving our shop some headache.when you drive it and give some gas it seems like it is been the feeling its give during plugged cats or plugged fuel filter.ihooked the scanner and got these codes.can i get these codes if the c... Trouble codes: P0131, P0137, P0138, P0140, P0141, P0157
1999 GMC Sierra 1500 SL 5.3L No Start VIN: 1GTEC14T3X
This truck will start and stall instantly. seems like security issue. No communication with scan tool to PCM or any other modules. All fuses are good. SES light will come on with key on but no other lights on dash e.g. (air bag, seat belt, message center, door...
2004 GMC Sierra 3500 6.6L runs out of fuel VIN: 1GDJC3426E
this truck fuel gage reads empty and both tanks are when the front tank runs low it wont transfer from rear and will run out of fuel, and i jumpted the leveling or transfer pump and it works? how does this sys. work have no wiring the tanks...
2002 Saturn Vue 3.0L ABS unwarranted activation VIN: 5GZCZ63BX2
Customer brought this one in for unwanted ABS activation. Road test and could not verify concern, but the wheel speeds were off exactly half of the actual speeds. Scanned for codes, none found. All power and grounds seem present. Basically if you are driving 4...

Fixes & Summaries for GM
Fix/Summary Answers
1997 GMC c6500 .0L Unknown VIN: A6464TBD66
My apologies for taking so long, problem was parts availability. Another problem was repair info, --not easy toaquire,i finally was able to follow a diagnostic chart and the problemwas related to code 5 which was displayed on brake module, and the problem was...
1998 GMC Jimmy Envoy 4.3L HID headlights VIN: 1GKDT13WOW
The Envoy now has regular headlights. May not be as bright as the HID but alot less $$$. So customer is happy. What I did was ordered some regular headlight assemblies. They fit just right. The whole install time was about 1 hour to remove the old and install ...
1997 Pontiac Sunfire SE 2.2L engine VIN: 1G2JB1244V
First I would like to thank the members who took the time to completely read the problem and put some thought into their replies. With the number of replies suggesting a head or head gasket problem I thought I would follow that route. We do not have a gas a...
2005 Saturn Vue 2.2L MIL Lamp on VIN: 5GZCZ33D76
Thank you for the replies, what caused the check engine light remains a mystery. I suspect the bcm, i accidently left the headlights on & drained the battery, then disconnected the battery & recharged, now the light is off. I tried clearing kam by removing the...
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