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Prev Professional Automotive Repair Technical Discussions for August 5, 2013
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Open Help Requests for GM
Help Request Answers
2001 Cadillac Catera 3.0L No Communication VIN: W06VR54R61
I have no communication from DLC to Scan tool to communicate to PCM or TCM. I can communicate to ABS and Body Control. If I check serial data voltage on pin 7 of DLC it is 0 volts with no activity on lab scope. If I check serial data at pin 8 on DLC I see a 2....
2003 Chevrolet Malibu 3.1L wipers VIN: 1G1ND52J33
I'm getting this Malibu dumped in my lap tomorrow. Has gremlins or something. "Service Vehicle Soon" light comes on randomly, runs great. Periodically wipers will not work and when they do, will sometimes not shut off. Power windows periodically wont work from...
2009 Chevrolet Express 1500 4.3L heater core VIN: 1GCFG15X79
This van has a leaking heater core. I am to the point where the repair info says cut the heater box. Has anyone found an easy way to do this? There isn't much room to work thx MH
2009 Chevrolet Tahoe LTZ 5.3L cruise control, radio controls, bluetooth VIN: 1GNFC33009
customer came in last month for cruise contol switch not workin so we tested imput and output came up to replace switch so we ordered part customer came back so we could install part and find out cruise control, radio control and bluetooth controls on steering...
2011 Chevrolet Traverse LS 3.6L lite VIN: 1GNKVEED6B
the courtesy lites will not come on when doors are opened.have checked for bcm codes and none were found have used scanner to turn lites on and they come on when commanded have checked door ajar switches with scanner all go opened and closed with use of doors,...
1997 Pontiac Firebird Formula 5.7L Clutch VIN: 2G2FV22P2V
First time customer, vehicle towed in. Clutch in pieces and flywheel had severe hot spots. Refaced flywheel, New AMS clutch kit, trans mount, new flywheel bolts, fluid change. On roadtest, detected noticeable clutch shudder on acceleration. We weren't satisifi...
1998 Pontiac Sunfire GT 2.2L Misfire VIN: 4G2JB3247W
Im posting again about a car ive posted about previously with more info. This one is kicking my butt. Car originally came in complaining of a misfire on the highway at cruise, mostly going up a slight hill. Customer requested a tune up. After ignition tune up,...

Fixes & Summaries for GM
Fix/Summary Answers
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