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Prev Professional Automotive Repair Technical Discussions for February 4, 2013
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
2008 Buick Lucerne CXL 3.8L No Start VIN: 1G4HD57298
Vehicle was towed in no start. Fuel pump not getting power from fuel pump relay. Coil side of relay has ground and power to the coil is being given when the ignition switch is turned as designed. What is happening is the 12 volt supply from the fuse drops to a... Trouble codes: P0230 (Fuel pump relay control circuit)
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2007 Cadillac CTS 3.6L climate control VIN: 1G6DP57757
car came in no heat on drivers side. passenger heat is good. had b0126 air distribution actuator. replaced air control actuator. air flow code is gone,air direction is working properly now replace drivers temperature actuator no difference. on scan tool, actua...
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2003 Chevrolet Suburban 1500 LS 5.3L starter VIN: 3GNFK16Z73
car came in for possible charging system problem, when we try to start it, the computer only engages the starter relay for a split second then releases. if you hold the key in the crank position the starter will cycle on for the split second and then off repea...
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2005 Chevrolet Silverado 2500 HD 6.6L Surge, MIL Lamp on VIN: 1GCHK23225
stomer came in while i was on vacation and another tech took a ride with him(he had a pretty heavy trailer hooked on). He said the vehicle had a major lack of power and would surge or almost miss going down the highway. the vehicle had a history code of P1093-... Trouble codes: P1093 (HISTORY Fuel Pressure Low During Power Enrichment)
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2011 Chevrolet Silverado 1500 LS 4.8L Mechanical VIN: 3GCPCREA0B
Hey all, having a issue with this truck. It was brought in for a ses and miss a month ago. We performed a major tune up. Had a p0300 missfire, and a co561 sys. disabled info stored. Cleared codes and road test. Ran good. A week later it was brought back with t...
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2005 GMC Canyon Z71 SL 2.8L Timing chain VIN: 1GTDT19865
Good afternoon. I'm working on this GMC Canyon 2.8l 4*4. The engine needs a timing chain. I started disassembling it. I removed the air intake, cam cover and varous other parts. I am now on the timing cover and can't seem to get it loose. I am using AllData fo...
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2007 GMC W3500 Forward W3S042 6.0L Poor Idle Quality, Hesitation, MIL Lamp on VIN: 4KDB4B1U67
Just to let everyone know this is a special order Isuzu cab forward truck with a GMC 6.0 drivetrain. W3500 When vehicle was towed to shop it was in limp mode and would not drive over 20 mph. I scanned for codes and found Multiple cyl. misfires, coolant temp c... Trouble codes: P2101 (Control Module throttle actuator position), P0120 (Throttle Position sensor 1 circuit), P0220 (Throttle Position sensor 2 circuit), P1516 (Throttle Actuator Control Module Performance)
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2001 Saturn SL1 1.9L Electronic VIN: 1G8ZH52801
This Car Bangs Into Gear. 1-2 Is Real Bad. Code P0746. I Checked The Wires Going Into Trans. For The PC Solenoid. The Connector Is Melted Where These 2 Wires Are Located. There Is Power On The Wire That Comes From The TRS LP Fuse In The Underhood Fuse Box But ...
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Fixes & Summaries for GM
Fix/Summary Answers
2003 Cadillac Seville SLS 4.6L Cluster display VIN: 1G6KS54Y93
Hello everyone and thanks for the replies. After getting the vehicle back and attempting to re-calibrate the cluster (we were assuming that it had been set up for non US) with no improvment, we went out on a limb and asked the customer if she had any other key...
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2011 Cadillac CTS V 6.2L Electrical system VIN: 1G6DV8EP3B
-Replaced BCM at Dealer, Now motor will shut down after 5 seconds, vs multiple minutes before BCM replace -Now there is one Hard Code(P1682 Ignition Switch Circuit Faulty), and Check engine light stays on all the time no matter key position -When disconnecti...
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2000 Chevrolet Impala 3.4L starter VIN: 2G1WF55E8Y
Well I beleive this one is fixed. Went back in and did a pin drag test on the connector at the switch. Found the connection on the pink wire to be a bit loose. This was a connector that I had replaced in the past. Anyway after messing with that I was able to d...
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2004 Chevrolet Monte Carlo LS 3.4L No Start VIN: 2G1WW12E44
ok,i cut the yellow on the ignistion switch while car was running but engine still would not start sometimes.the other problem was engine would not start on first crank but on the second crank so i started looking into this more and found no 24x signal or cam ...
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1996 Geo Tracker 1.6L Poor Idle Quality VIN: 2CNBJ1865T
DECIDED TO CHECK FUEL PRESSURE AGAIN, HAD 80 LBS PRESSURE. REPLACED THE FUEL PRESSURE REGULATOR WITH USED ONE. CURED PROBLEM ALSO GAVE A GOOD TUNE UP.HELPED OTHER MISS IN ENGINE. THANKS FOR ALL YOUR TIPS.
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2004 GMC Envoy XUV SLT 4.2L batt light VIN: 1GKET12SX4
thanks to all that replyed , after verifing 4.9 volts to alt term b, tried an oem alt and the problem was gone
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1991 Oldsmobile Cutlass Supreme 3.1L timing VIN: 1G3WH54T7M
ICM and crank pos. sensor did the trick. Thanks to all.
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