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Prev Professional Automotive Repair Technical Discussions for October 10, 2014
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
2004 Cadillac SRX 3.6L MIL Lamp on VIN: 1GYEE63784
As our shop name implies, domestics are not our best suit. That said, we have a check engine light that will erratically faintly "flicker" when it feels like it- usually at slower speeds or at stops. No pattern or sequence to it, would usually be something I w...
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1987 Chevrolet P30 7.4L Hesitation VIN: 1GBKP37W9H
Customer just bought vehicle, cam in with a long list of repairs and services he wanted done.part of that was tuneup and carb overhaual. The engine now has a slight bog on acceleration, we have rechecked the float and accelerator al seem ,ok. The vacum advance...
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1995 Chevrolet Camaro Z28 5.7L EBcm VIN: 2G1FP22P5S
ABS inop light on code C1295 set,can clear code and returns immediately at start up without brake pedal input. Code states brake switch open,tested input to EBCM and ECM and voltage in correct ,also tech2 showes brake input to EBCM and ECM,also for cruise and ...
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2005 Chevrolet Astro 4.3L Misfire, MIL Lamp on VIN: 1GNEL19X45
cust. complaint, pull up long hill veichle misfires. stated found p0306.i found p0300 and p1134.clear codes and road test. car runs well.p0300 returned. pull up-hill engine light flashes,cyl.6 misfires on current counters.#6 comp.= 150 psi. plug wire 20k plus ... Trouble codes: P0300, P1134
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2005 Saturn Vue 2.2L Clutch VIN: 5GZCZ23D85
Vue came in with clutch pedal to the floor due to leaking slave cylinder. Replaced, master & slave, clutch disc & pressure plate, resurface flywheel. All went together fine, system worked great, day later customer called and said pedal got hard, he pushed hard...
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Fixes & Summaries for GM
Fix/Summary Answers
2007 Cadillac CTS 2.8L No Start, MIL Lamp on
thank you for all your help and replies. Found out that the ECM was the problem. Had locked us out of the theft deterrent system Trouble codes: U1192 (VTD lost comm), U1064, U1153 (CCP Lost comm), U1040 (EBCM Lost), P1629 (VDT Fail), P1630 (VDT learn Mode active).
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2007 Cadillac DTS 4.6L Oil Pan VIN: 1G6KD57Y17
After much himming and hawing, I decided to take the advice of Russell, Charles, Sean, and Mike, and drop the entire engine/trans assembly, and I was glad I did! This has got to be the most efficient way of doing this repair, because I needed to replace the oi...
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1991 Chevrolet S10 Blazer Tahoe LT 4.3L Poor Idle Quality, Stall VIN: 1GNCT18Z5M
I first want to thank everyone for your help in solving this problem. Like always there were several things that had to be fixed to be able to get to the real thing that kept this blazer from running good. After rebuilding the TBI and replacing the wore out IA...
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1998 Chevrolet Metro 1.0L MIL Lamp on, o2s2 VIN: 2C1MR2266W
I wanted to add information, not close this request but here is what I know. The resistance on my generic o2 sensor heater is out of spec. PCM is looking for 11.7 to 15.6 ohms, mine tests at 8.6. PCM does code for the heater circuit. I added 3 ohms of resistan... Trouble codes: P0420.
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2005 Chevrolet Silverado 2500 HD 6.0L Starting VIN: 1GCHK29U05
First of all, THANKS TO EVERYONE WHO HELPED! Grounds. They can be a big pain in the lower end! It turned out to be the tiny ground on the back of the intake/block area. Very hard to reach on this truck. The wire had flexed enough to break to only 1 or 2 s...
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