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Professional Automotive Repair Technical Discussions for April 20, 2018 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2000 Buick LeSabre Limited 3.8L Starting VIN: 1G4HR54K7Y vehicle will start then immediately die. but only after it sits for a while. fuel pressure stays good. injector has power but no pulse. vehicle has spark. good waveform and 18x and 3 x rpms on scan tool and waveforms at pcm for crank sensor. tried maf unpl... |
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| 2002 Chevrolet Silverado 1500 5.3L cat monitor wont run VIN: 2GCEC19T32 failed smog test with a p0420 code. after dig confirmed cat was defective. checked mode 6 at that time and cat monitor for bank two has not been run. after cat replacement still cant get bank two to run the cat monitor. bank one runs the monitor right away... |
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| 2015 Chevrolet Tahoe LTZ 5.3L starter relay VIN: 1GNSKCKC8F Truck will not crank, steering wheel is locked (electric steer), and will not come out of gear after replacing leaking a/c condenser and connecting battery. We have no ground command to starter relay from the PCM. This is a key less entry switch system. Co... |
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| 1994 Geo Tracker 1.6L Hesitation, Surge VIN: 2CNBJ18UXR This vehicle has a mild hesitation or surge when accelerating lightly. No codes are stored and vehicle has no data stream. While checking the basics I checked ignition timing and noticed if I revved engine up it you would feel a slight cut out and it seeme... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2005 Cadillac STS 4.6L Poor Idle Quality VIN: 1G6DC67A15 Unfortunately unable to fix vehicle. Troubleshooting time versus sucess was eating profit . Did learn a way to test if valves were broken by energizing solenoids using a hot wire to positive side. Other than that no useful information. Trouble codes: P0019 (Exhaust Cam shaft position correlation B2 Left Side), P0024 (Exhaust Cam shaft position system performance B2). |
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| 2005 Chevrolet Impala 3.4L take off VIN: 2G1WF52E95 found that the flushed cooler is still bad. bypassed cooler with a piece of hose to test and worked fined. installed aftermarket oil cooler. |
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| 2009 Chevrolet Traverse LT 3.6L Rear upper control arm? VIN: 1GNER23D59 Thanks for the input. I chose fixed because I got my question answered. The rear upper control arm bushing play is a problem on these model GM Crossovers. As for when it becomes a problem? I agree that any paly is a problem for an accurate alignment. In this c... |
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| 2012 Chevrolet Cruze LTZ 1.4L trunk VIN: 1G1PH5SC3C Thanks to all who replied. Steve from Wisc. was right. Water getting into the trunk release button by the license plate was wigging the thing out. BTW it did not have a release button on the drivers door like some folks suggested... It was a strange one. But a... |
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