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Prev Professional Automotive Repair Technical Discussions for October 31, 2013
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Open Help Requests for GM
Help Request Answers
2004 Chevrolet Colorado Z71 LS 2.8L Engine VIN: 1GCDT19814
Vehicle was towed in ,overheated,determined head gasket fail removed cly head,pressure test -ok re-assembled , runs at normal temp, 220 until reaching 60 mph,temp climbs to 257 after 5 miles on highway, turning heater on reduces temp to 245. I can drive this t...
2002 GMC Sierra 2500 HD SL 6.6L No Start, Stall VIN: 1GTHK23192
Need some duramax help here. Truck came in about a month ago with crankcase full of fuel. I put in 8 injectors, new fuel filter, resealed the filter housing and changed the oil. The truck started and ran good. After the guy put about 100 miles on it, it came i... Trouble codes: P1094 (Low fuel rail pressure)
2000 Oldsmobile Intrigue GX 3.5L Engine VIN: 1G3WH52H4Y
R&R engine to replace head gaskets and to heli coil head bolt holes in block. After install engine started ran for about 2 minutes and shut off. Try to restart and it tries but just don't quite make it. Left sit for a few hours and same thing. Checked for spar...
2004 Pontiac Grand Prix GTP 3.8L Abs VIN: 2G2WR524X4
This has been an ongoing problem. The customers complaint is on start up the abs light and traction control message will intermittently come on and the warning chime will sound. ABS fault codes C0236 and C0240 will always show up as history codes. Cycle the ke...
2003 Saturn Ion-1 2.2L clutch pedal VIN: 1G8AF52F33
hi everyone I have this car with no clutch pedal just goes to the floor...I pulled the trans. and found that the slave cylinder was leaking so I replaced it with a new one and a new clutch assembly.of course when its all done I have to bleed this wonderfully d...
2007 Saturn Outlook XE 3.6L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: 5GZER13737
hey every one thanks for any help.. vel. came in with a evap code p0496 pinpoint test showed bad canister purge valve...replace valve then is when the lean codes showed up..st trims at 25 to 30 maxed out...no vacume leaks found..checked air filter and found oi... Trouble codes: P0300, P0171, P0174, P0496

Fixes & Summaries for GM
Fix/Summary Answers
1989 Chevrolet K1500 Cheyenne 4.3L mode door VIN: 1GCDK14Z5K
After retesting all possibilities I ordered another new actuator and fixed the issue. Thanks
2002 Chevrolet Trailblazer LS 4.2L ignition switch VIN: 1GNDT13S12
thanks fellow techs after scanining for codes with modis i got body control computer code b 2995 pass lock data fail also code b 2961 key in igntion circut fault pcm code p 1631 theft system incorrect that made me check body control modules for shorts.w ith my...
2010 Chevrolet Traverse LT 3.6L Misfire, MIL Lamp on, No power VIN: 1GNLVFED9A
THANKS AGAIN TO ALL WHO RESPONDED TO MY POST.AFTER CHECKING AND RECHECKING FOR VOLTAGE DROPS OUTSIDE OF THE PCM,IT ALL CAME BACK AGAIN AND AGAIN TO AN INTERNAL PCM PROBLEM.THERE WAS 12VOLTS GOING INTO PCM,BUT 2.24 COMING OUT FOR SENSOR REFERENCE.I ADVISED THE ... Trouble codes: P2101 (Throttle actuator performance), P0338 (Crank position sensor), P2138 (Throttle/pedal position sensor), P0698 (Sensor reference voltage c circuit low), P0602 (Ecm/pcm processor), P0335 (Crank position sensor a circuit).
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