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Prev Professional Automotive Repair Technical Discussions for July 24, 2014
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Open Help Requests for GM
Help Request Answers
2006 Buick Lucerne CXS 4.6L magnetic ride control VIN: 1G4HE57Y46
Hello and thank you in advance. This vehicle belongs to a regular customer. This car has had a fault with ride control for years. The customer decided they wanted to correct the problem as inexpensively as possible. We installed aftermarket shocks wrapped with...
2006 Buick Rendezvous CXL 3.6L Starting/electrical VIN: 3G5DB03726
Hello to all, i have a situation here that perhaps some one has run into and could point me in the right direction, Here is what i have, this vehicle came in as a no start but just inttermitantly Did all the basic tests checked starter and starter relay, all w...
2007 Cadillac SRX 4.6L delayed engagement in drive VIN: 1GYEE63A27
Need some help on this Cadillac. Came in with Trans codes p0751 and p1825. Complaint was dropping out of gear. Test drove vehicle and could not duplicate problem. Going by the codes we replaced solenoid pack and reprogrammed. Delivered vehicle and 3 days later...
2005 GMC Sierra 1500 SLE 5.3L Unknown VIN: 2GTEK13T45
customer has had problem for a while,he had pads rotors,calipers,and front brake hoses replaced,what happens is once in a while the front brakes wont release after a brake application,they can be released by lifting the brake pedal with the top of your shoe.we...

Fixes & Summaries for GM
Fix/Summary Answers
2003 Chevrolet Express 2500 5.3L No Start VIN: 1GCFG25T13
Thank you for all the replies. We got a used PCM and still could not program. Found the root cause for all the problems to be in the class II data line, the dark green wire (CKT 1049) between splice pack and PCM. Resistance was less than half an ohm but could ... Trouble codes: U1000 (In SDM Class II data link malfunction).
2001 GMC Sierra 1500 SL 4.3L Hesitation, MIL Lamp on VIN: 1GTEC14W41
cleaned mass air flow sensor power not [...] removed pre cat o2 sensors power restored problem was plugged cat thanks techs we got it fixed 4 of 11 responses suggested check for plugged cat thanks again Trouble codes: P0300, P00, 420 (cat eff), P0101, P0102.
2004 GMC Savana 3500 6.0L Overdrive Sprag VIN: 1GDJG31U14
Thank you to all who replied. Checked cooler flow and had adequate flow. We change the Overrun sprag and drum assembly with dealer parts. It has only been a week and half since truck left. I will try to update in a few months if truck does not come back. If ...
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