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Prev Professional Automotive Repair Technical Discussions for January 12, 2015
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1994 Chevrolet K1500 5.7L Acceleration VIN: 2GCEK19K6R
Truck idles fine. Timing is right on. New fuel pump and sender. New distributor cap and rotor. Newer wires. New fuel filter. Newer I.A.C. motor. When leaving a intersection under normal acceleration the truck shutters and spits. When you let you foot off the g...
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2000 Chevrolet Tahoe LT 5.3L No Mode Control VIN: 1GNEK13T1Y
Came from another shop. vehicle has no mode control on automatic hvac. Had wrong control head in it. Obtained used control. No mode control. Got second unit from yard and still no mode control. I can change mode with scanner. All fuses good, connector to unit ...
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2008 Chevrolet Impala LS 3.5L speedo jumps VIN: 2G1WB58K78
this car was an elderly persons car, just put into service 6 months ago. after driving about 45 Min, speedo will jump, cruise will quit, it sets U0073 code. sometimes can't get to reoccur. have tested all comm wires, pulled cluster to check connection, voltage...
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2008 Chevrolet Aveo LT 1.6L MIL Lamp on VIN: KL1TG56668
To All Techs. I need help look up the PCV Kits Part number. Call to local dealer for the set update kits. They wouldn't know, if I will have the part number. There are recall back 2010 all Cherv. Aveo 1.6L. Thank you for the info guys. Best regards, Thanh Huy... Trouble codes: P, 2106 (Throttle control system performance- limitation active), P2110 (Tac system forced limited throttle actuator speed), P2135 (Tp system sensor 1-2 correlation), P2282 (Intake manifold air leak)
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2001 GMC Jimmy SLE 4.3L No Start VIN: 1GKDT13W31
ok this is a crazy one , comes in from a dealer it was a trade in and wont start , cant pull codes but will start fuel assistance ,but heres where it gets weird, the headlight pulse fast (like when u have a bulb out really fast ) but its the headlights that ar...
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2004 GMC Sierra 2500 HD SLE 6.6L No Start, Hard start VIN: 1GTHK29214
2004 LLY duramax that has a very short glow plug cycle and a hard start when cold. Brought to me after another shop had it and couldnt figure it out. All the glow plugs were replaced and was told they checked compression on all cylinders and was within spec. i...
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Fixes & Summaries for GM
Fix/Summary Answers
2003 Buick Park Avenue Ultra 3.8L Cold Start Valve Tap VIN: 1G4CU54163
OK so we checked the pressure with an external gauge & got the same pressure as the dashboard readout in the information center + or - 2-3PSI See Testing & results. So we pulled the Radiator Side Valve Cover to find it was awfully dirty with black dirt ...
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1998 Chevrolet S10 LS 2.2L No Start, Misfire VIN: 1GCCS1946W
NOT QUITE SURE WHAT TO SAY ABOUT ANTITHEFT LIGHT WAS ON SOLID NOT FLASHING SO THE RELEARN PROCEDURE WOULD NOT WORK AS IT WOULD NEED TO STOP FLASHING AS STATED IN THE 30 MINUTE RELEARN, BUT DID TRY ANYWAY AND DID NOT WORK , HOWEVER IT SAT OVER WEEKEND AND WHEN... Trouble codes: P0335 (Crankshaft pos sensor circuit), U1000 (No state of health from module), P1626 (Veh theft det fuel enable signal loss).
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2010 Chevrolet Equinox LT 3.0L MIL Lamp on VIN: 2CNFLNEY4A
We basically checked every timing component to eliminate everything except for the timing chain. We quoted the customer on teardown and they declined repair at this time. Would have like to gotten it torn down so we could have fixed the issue. Its a very expen... Trouble codes: P0017.
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1994 Oldsmobile Cutlass Ciera 3.1L No Start VIN: 1G3AG55MXR
Well, sometimes you need a reminder to go back to basics. I got caught up in diagnosing the usual things. To those of you who said about checking the compression, that was what lead me to the proper diagnosis. * Broken Camshaft. Checked front 3 cylinders, #... Trouble codes: 341 (Intermitant camshaft sensor signal).
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