× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for September 16, 2011
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for GM
Help Request Answers
2005 Buick Rendezvous CX 3.4L No Start VIN: 3G5DA03E45
At my Witts End. Intermitten Loss of Power To Cranksensor A (Behind Balancer)Lose Power to Red wire.Power comes from Pin 70 At the ECM.Pin Testing Computer I have 1.8 Volts at pin 70 and 1.8 volts at Cranksensor.If Car Does not start If i supply 12 Volts to cr... Trouble codes: P0335
2001 Chevrolet Express 1500 4.3L No Start VIN: 1GCFG15W01
The VTD system dose it disable both the fuel pump and injectors or just the injectors. This van came into our shop a no start, Cranks ok and has spark, but no fuel pump or injectors. Computer dose not turn on the fuel pump or let injectors fire. Computer shows... Trouble codes: P1631 (Theft code. Pass lock and computer not agree)
2004 Chevrolet Express 3500 6.0L No Start VIN: 1GBJG31U94
Truck towed in for no start, cranks but kicks back. Scope cam and crank signals. When starter is jumped, so cranked without key, patterns look fine. Except they are both at about 8.5 v max. When cranked with key (alowing fuel) pattern looks ok exept that the h...
2004 Chevrolet Silverado 2500 LT 6.0L air bag light VIN: 1GCGK23U04
trying to locate on the vehicle the right side impact sensor- alldata shows inside pass door, dealer faxed picture- shows inside right seat, cannot find this thing anywhere! originally recieved sensor under radiator and tried anyway since i had it but thats no...
2005 Chevrolet Colorado Z85 3.5L Starting VIN: 1GCDS13695
Hey guys need a little help here.I have a Colorado with an intermittent no crank.If I remove the blue connector at the pcm or remove the positive battery cable the vehicle will start every time afdter reconnecting.I have tried another pcm and ignition switch t...
2000 Oldsmobile Alero GL 2.4L Red Brake Light VIN: 1G3NL52T3Y
I condemed abs mod. Shop manager rechecked and agreed. I installed mod. Start car abs and red brake light on, cleared abs, 5 seconds later both lights back on. With codes 1286, and 1246. On source of information tells me that 1286 is the code to turn on brake ...
2001 Oldsmobile Aurora 3.5L Stall VIN: 1G36R64H41
Hello, I have a very troublesome Aurora that intermittently will just stall like you shut the key off. if you catch it when it's about to happen and throttle it, it will stay running. It has a MAF code that keeps coming back even though has a good MAF sensor a... Trouble codes: P0101 (MAF sensor performance), P1106 (MAP Sensor voltage intermittently high)
2002 Pontiac Grand Am GT 3.4L Tcc VIN: 1G2NV12E82
This car intermittently has an RPM flare of around 500 rpm's. When this occurs the cruise control drops out. Condition can be duplicated by rolling down the drivers side power window. However, it will act up at any given time with or without rolling down the w...

Fixes & Summaries for GM
Fix/Summary Answers
2004 Buick Rendezvous Ultra 3.6L u1000/u1300 VIN: 3G5DB03784
thanks for all the help it was ecm not communicating with the other modules put new one in and reprogrammed all is good thanks again Jason
2002 Chevrolet Avalanche 1500 5.3L Ebcm VIN: 3GNEK13T82
Thanks guys for all the help. The vehicle needed a ignition switch. When i tried to communicate with the vehicle if i wiggled the key up and down it would. If just tried to turn the key on i had nothing.
2003 Chevrolet Silverado 2500 HD 6.0L harsh shift VIN: 1GCHK23U63
Thanks guys,,,I guess I have to get my glasses changed..There was another sensor that was unplugged just before the dummy sensor..The truck is used on a Gold mine site & a lot of mud was built up around the sensor & I didn't see it..I do appreciate your help &...
1990 Oldsmobile Cutlass Ciera 3.3L brakes VIN: 1G3AL54NOL
thank's to all the replies. most said abs problem,this vehicle hasnt got abs. others said preportion valve or dump valve problem. preportion valves part of master cyl,no dump valve. no combo valve. fix was to bleed the you know what out of it untill my leg was...
2003 Saturn Ion-2 2.2L Alternator VIN: 1G8AJ52F83
Well pretty much everyone nailed this one. It was a bad alternator, I guess that's what you get for trusting that someone else did a good job of what they tested. I guess the old saying still goes if you want something done right do it yourself! Thanks for ...
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next