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Prev Professional Automotive Repair Technical Discussions for June 12, 2014
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Open Help Requests for GM
Help Request Answers
1996 Buick Riviera 3.8L Abs/Clust./Audio VIN: 1G4GD2212T
Thanks for your time in advance. I have this buick rivera with abs light on intermittently and now steady. When i try to communicate with abs, there is no communication. It also wont communicate with hvac programmer or the instrument cluster. These three modul...
2008 Cadillac DTS 4.6L fuel pump relay VIN: 1G6KD57Y78
We have had this car in several times for fuel pump relay burning up. tested fuel pressure and draw looked ok but replaced pump anyway after coming back second time. tested all wiring for pump and found nothing with high resistance. When testing power at fuse ...
1994 Chevrolet Corvette 5.7L No Start VIN: 1G1YY22P9R
opti-spark people - vette arrived no start/no spark - scope high and low dist. signal , no signal. replace dist. w/ o.e. dealer. car leaves - comes back after stalling once but restarted fine. started fine at shop / ran fine on test drive. put scope back on hi...
1999 Chevrolet C1500 Suburban 5.7L No Start VIN: 3GNEC16R2X
History Bought truck from friend and ran ok for a few weeks and after a long trip (2 hrs) driving at low speed truck stalls, on road. At first check there is no spark, so i tow home and start to see whats up and truck starts momentarily idling extremely rough...
2001 Chevrolet Express 3500 5.7L abs module VIN: 1GAHG39R41
van came in with brakes super sensitive,replaced abs module with used one and it will still throw you thru the windshield. any ideas what could be causing this
2001 Chevrolet Silverado 1500 5.3L left front speed VIN: 1GCEK19T71
truck came in with no communaction to abs module replaced the abs module. now have left front speed sensor erratic or front wheel speed sensor fault code . can someone point me in right direction please
2003 Chevrolet Silverado 1500 4.8L engine VIN: 1GCEC19V03
Customer had misfire codes and took vehicle home and changed his spark plugs. He also had codes for the throttle body which is a common problem on this vehicle. He returned to the shop to allow us to change his throttle body due to the fact of the reduced engi...
2007 Chevrolet Tahoe LTZ 5.3L Stall VIN: 1GNFK13047
I just recently replaced the two front struts on this vehicle and customer is complaining that in a hard left turn the vehicles stability track light is coming on and the vehicle stalls out. when driving straight the vehicle runs perfect and when making slight...
2007 Chevrolet Uplander 3.9L Air Bag System VIN: 1GBDV13127
Vehicle came in with a code b0041 left front side air bag module circuit open. Tested wiring from module to harness side of side air bag connector. Both wires tested good . Do not have a dummy air bag to plug in to test but found on Identifix techs were saying...
2008 Chevrolet Silverado 2500 HD WT 6.0L Brake Lights VIN: 1GCHK29K08
Brake lights would not shut off, switch was replaced, no fix. Tested system & determined bcm at fault, replaced & programmed bcm, no fix. Gm dealer programmed bcm, no fix. Gm dealer tested & diagnosed to failed underhood fuse/relay center, replaced fuse/relay ...
2001 Pontiac Aztek 3.4L fuel gauge VIN: 3G7DA03E71
came in with crazy fuel gauge ( goes from full to empty to middel and any where in between). did my diag via alldata to step 6 where it tells me to check from connecter 305c to the fuel gauge sender connecter checked contnutiy and for an open and its good then...

Fixes & Summaries for GM
Fix/Summary Answers
2005 Cadillac CTS 3.6L MIL Lamp on VIN: 1G6DP56755
the presure sensor is reading vacum when presure is applied i recomended the the evap canister presure sensor and vent valve as one assembly the customer declined any repairs trading car in thank u for the advise will be helpful for next time also when i was ... Trouble codes: P0445.
1987 Chevrolet Corvette 5.7L blower VIN: 1G1YY2187H
thanks to Robert and ken from texas for their wireing information the problem was in the ctsy/clock circuit that ken had on his information .moisture and grime kept the fuse from making contact in the panel ,every wireing diagram I could get was limited and di...
2001 Chevrolet C7500 Kodiak C7H042 7.2L Cuts out VIN: 1GBJ7H1C61
been waiting to last minuet to close this post to see if my problem child was coming back . I normally pull sending unit and hook a electric fuel pump to pick up to check for cracked fuel lines etc. This did not work on the o-ring type push on-lines on this tr...
2007 Chevrolet HHR LT 2.2L MIL Lamp on VIN: 3GNDA23D87
Thanks for all your help.Had a Bad new ECM,replaced it and everything working O.k. now. Trouble codes: P062F, P062F.
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