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Prev Professional Automotive Repair Technical Discussions for July 22, 2013
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Open Help Requests for GM
Help Request Answers
1999 Buick Regal GS 3.8L Drive-axles VIN: 2G4WB52K0X
Help! I got this Regal that is defying logic, or so it seems. This vehicle has a rattling sound like marbles when going forward and making a right turn. Cannot quite tell if noise if left side or right side but definitely wheel speed rotation related. Sound ca...
2002 Buick Rendezvous CX 3.4L instrument VIN: 3G5DB03E72
have checked all systems for codes none found have a awd disable message that is on in instrument cluster have load checked all wiring form abs module to all 4 whl spd sensors all pass have ohmed all sensors all read the same . the only code i get is for engin...
2003 Chevrolet Malibu LS 3.1L Hesitation, Surge, Poor Fuel Economy, lack of power VIN: 1G1NE52JX3
good monday morning all, thanks in advance for reading our post. have this malibu that the customer complained two weeks ago about a lack of power when the put the foot to the floor to pass someone. found #2 spark plug wire breaking down under extreme load. in... Trouble codes: P0300
2003 Chevrolet Venture LS 3.4L Stall VIN: 1GNDU03E53
my question is after I got this vehicle running you can drive it and it will stall out but it cranks right back up and it is not all the time, had no codes in system but this is the problem, now any help would be greatly appreciated.
1992 GMC C6000 Topkick C6H042 6.0L No Start VIN: 1GDJ6H1P2N
Thanks for taking a look at this exhausting problem. We are out of ideas. We were called to the unit for running rough. We found the fuel pump burnt up, and the relays were burnt. R&R fuel pump and relays, but did not fix the problem. Found ECM burnt. R&R ECM ...
2008 GMC Acadia SLT 3.6L Refrigerant VIN: 1GKEV33728
This vehicle has different A/C output temps on driver's and passenger's sides. It is equipped with automatic temp control. The refrigerant is low. No oil or dye traces are seen in the engine bay. We are suspicious of an evaporator leak, but would like more con...
1999 Pontiac Grand Prix SE 3.1L convertor VIN: 1G2WJ52M6X
Hello fellow technicians, please bear with me as this is my first post. Complaint is that vehicle shifts from first to third gear. Road tested to verify with scan tool and found that the vehicle is shifting through all gears, but the TCC is locking up in secon...
2006 Saturn Ion Red Line 2.0L Alternator VIN: 1G8A155BX6
This car came in with a no start condition. When we got it started using the jump box we noticed that as soon as we took the jump box off of it, the headlights dimmed, and the car would die shortly after. We checked the alternator and it was only charging 9v a...

Fixes & Summaries for GM
Fix/Summary Answers
1980 Chevrolet Citation 2.8L Mechanical VIN: 1X687A6204
as usual many of you were right. car was out of time, chain was the issue. car had a steel upper and lower gear and did not have much slop. but what had happened, was the chain guide in the middle of chain had came apart, then went through the upper gear and j...
1991 Chevrolet C2500 Cheyenne 6.2L no overdrive VIN: 1GCGC24J0M
nothing yet I appreciate all the info from you, I told him he as to get the scan tool on it, I was just wondering if there was some things you seen that might make the truck function like this again thanks.
2004 Pontiac Grand Prix GT1 3.8L No Start, Stall VIN: 2G2WP52264
Thanks for all the responses. I'm closing this at this point because I didn't not post it correctly. I'll post it again after I try all the things that were suggested. Thanks again
2004 Pontiac Aztek 3.4L stalls VIN: 3G7DB03EX4
Did not find the problem. The customer will bring it back when it is worse. I do not like when I do not fix it. Arggggg.
2006 Pontiac G6 GT 3.5L No Start VIN: 1G2ZH55856
Thank you to everyone who responded! I did switch over the crank and cam sensors because Alldata said that on the 3.5L a short in those two sensors could cause comm issues. but that didn't correct the problem. I went into all of the other modules and found s... Trouble codes: U2105 (Lost communication with engine control system), U2109 (Lost communication with powertrain control system).
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