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Prev Professional Automotive Repair Technical Discussions for June 3, 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
2006 Cadillac DTS 4.6L in drive or reverse VIN: 1G6KD57Y46
Got a weird on here. Car only has 31k on it. When cold(room temp) the trans shifts into reverse forward with no issues. Once it runs for about 5 min it wont go into gear. But if you shut it down and restart it it will move again. No codes for slipping, fluid l...
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1992 Chevrolet K2500 Cheyenne 6.5L Converter VIN: 1GCGK24F2N
Customer was concerned that vehicle would go in and out of lockup going down the highway once hot. Scanned for codes had a code for TPS (22), graphed the TPS and found a break in the signal. Replaced TPS and followed procedure to adjust. Vehicle still had woul...
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2003 Chevrolet Impala 3.8L Unknown
I pulled the tranny filter off and was wiping the pan gasket area with a rag when a thin 4" long metal strip came off and fell on the floor. This thin flexable strip has a V shape in the middle. The strip has a cut out on both ends and fits into 2 pins that is...
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2006 Chevrolet Uplander LT 3.5L parasitic draw VIN: 1GNDV33L16
Hey guys I got this chevy that customer install new battery in an attempt to fix battery drain of vehicle after sitting over night battery volts drop below 11V. After letting the vehicle sit for over 4 hrs.in my shop Did a voltage drop test to fuses with door ...
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2008 Chevrolet Silverado 1500 WT 4.3L Excessive Emissions, Poor Idle Quality, Surge, Poor Fuel Economy, MIL Lamp on VIN: 1GCEC19X58
Hello all need some help, this truck came in running a little rough with check engine light on and reduced engine power light on. Scanned for codes and i pulled 11 codes the 6 noted below plus 5 more. The additional ones are p0106 map sensor performance, p0121... Trouble codes: P0172 (Fuel trim rich bank 1), P0175 (Fuel trim rich bank 2), P0068 (Throttle body airflow performance), P0101 (Mass air flow sensor performance), P2272 (Ho2s signal stuck lean bank 2 sensor 2), P2270 (Ho2s signal stuck lean bank 1 sensor 2)
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2004 GMC Yukon XL 1500 Denali 6.0L Shuts down ABS and Stability control VIN: 1GKFK66U94
I have a Code C0279 in traction control. Truck stops good and has a good brake pedal. Code appears as soon as the truck hits about seven mph (initialization speed). I can turn on ABS pump with my scan tool. No PCM or EBCM have been replaced and I'm the only on...
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2004 GMC Sierra 2500 HD SLE 6.6L No Start VIN: 1GTHK29224
I have a duramax in my bay. truck will not start without primming fuel sys. fuel rail pressures are around 250psi while cranking. I have replaced fuel line from ficm to filter as it was very soft. no change. installed fuel pressure guageon return line before c... Trouble codes: P1093
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2008 Pontiac Grand Prix 3.8L No Start VIN: 2G2WP55228
Hey guy i need help! This is a tricky one. Came on hook no start. First thing we did chagred the bettery and tried to start, but no start. Scanned for code and too many codes came up. (p0030,p0036,p0201,p0202, p0203,p0204,p0205,p0206,p0412,p0418,p0443) all the... Trouble codes: P0030, P0036, P0202, P0203, P0204, P0205
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Fixes & Summaries for GM
Fix/Summary Answers
1998 Chevrolet K1500 Cheyenne 5.7L No Start VIN: 2GCEK19R3W
thanks for all the replies, turned out , technition error or incompatence, tech told me he checked fuel pressure regulator . apparently he did not, he was sick a few days so i put my other tech on it , he checked and replaced regulator , vehicle starts and run...
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2000 Chevrolet Malibu 3.1L engine swap VIN: 1G1ND52J2Y
thanks to all that replied I think im going to go for it,this will also give me a chance to spend time with my son and again thanks
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2006 Chevrolet Express 3500 LT 6.0L fuel guage VIN: 1GAHG39U96
this was a long simple mistake. we replaced the dash guage and still not fix. We tried another fuel pum with no success. The problem was the fuel pump assembly. They were giving us one for a one ton truck. although similar in appearance it is apparently differ...
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2011 GMC Sierra 2500 HD SLE 6.6L MIL Lamp on VIN: 1GT120C84B
i FIGURE THE ANTI TAMPER SYSTEM HAS SILL LOCK OUT SNAP-ON CAUSE I RAN THE DPFE REGEN TEST MEANY TIMES AND THE SERVICE DPFE SYSTEM ALARM WAS STILL ON IN THE DASH, I GAVE IT BACK TO THE CUSTMER A FEW WEEKS AGO AND HE REPORTS THE MESAGE IS OFF.
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