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Professional Automotive Repair Technical Discussions for February 19, 2019 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1957 Chevrolet Bel Air 4.6L Fuel/ign Thank you for looking in advance, i have a 1957 chevy belair, very nice hot rod, owner can drive around town we live near raleigh nc, elev 350, car runs great, no problems, we can drive to higher elev. 1200 and greater engine will start to back fire thru e... |
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| 2004 Chevrolet Suburban 1500 LS 5.3L Shift indicator/PRNDL VIN: 3GNFK16Z84 P, R, and D, do not illuminate on the cluster when gear is selected. I replaced the neutral safety switch and installed a used instrument cluster, but still have the same issue. Neutral/safety switch provides signal to the PCM for gear selection then PCM s... |
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| 2012 Chevrolet Express 1500 4.3L PP system VIN: 1GCSGAFXXC Replaced passenger presence system assembly (lower seat). Went to do the preload set up and it says it fails due to code B0081 passenger presence system 1 calibration not learned (symptom 4B). Says the sensor is preloaded in these regions but when I look a... |
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| 2007 Saturn Vue 3.5L MIL Lamp on VIN: 5GZCZ63477 I need a little help on this one. I have a 2007 saturn vue with a 3.5l The customer complaint was a engine light with a code p0386 crank sensorB circuit. The customer replaced the cranksensor and timming belt himself. the car runs really good except for th... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2006 Chevrolet Trailblazer LT 4.2L No Start VIN: 1GNDT13S66 Thank you everyone that replied. Everyone who said to double check timing was correct. I scoped the cam and crank signals but did not have a known good to compare it to. Found one online and sure enough the timing is off. The vehicle is going back to the shop ... Trouble codes: P0017 (Camshaft Position Correlation), P0135 (O2 Heater Bank 1 Sensor 1), P0141 (O2 Heater Bank 1 Sensor 2), P0365 (Exhaust Camshaft Position Sensor Circuit). |
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| 2007 Chevrolet Silverado 2500 HD Classic LS 6.6L ABS Erratic VIN: 1GCHK23D27 Thanks to all that replied. AS I stated in my original post, there were no drop outs or glitches on any of the speed sensors. Replaced the ABS Module and did automated bleed. Road tested and all worked fine. |
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| 2008 Chevrolet Trailblazer LT 4.2L steering VIN: 1GNDT13SX8 POWER STEERING WORKIN AGAIN BY REPLACING PUMP. DONT UNDERSTAND WHY CAN ONLY FIGURE DEBRIS GOT IN SYSTEM WHILE LINES WERE OFF. THANX FOR ALL REPLIES. |
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