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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for August 14, 2019
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Open Help Requests for GM
Help Request Answers
2003 Chevrolet Trailblazer EXT LS 5.3L MIL Lamp on, Reduced Engine Power VIN: 1GNET16PX3
This vehicle has came in and we have found reason to replace tbody tac module and app sensor. customer installed first app sensor and tps sensor. we first replaced tbody it was setting codes for it at that time. returned to customer after test driving for ... Trouble codes: P1125
2005 Chevrolet Suburban 1500 LT 5.3L Poor Idle Quality, Poor Idle Quality, Poor Idle Quality, Poor Idle Quality VIN: 3GNEC16Z55
has new throttle body and harness also checked grounds cleaned ground g104 has 5 volt reference on both wires at throttle body and tac module tps signal wires at throttle body and tac module sweep fine on lab scope up to 5 volts when reduced power light co... Trouble codes: P1516
2012 Chevrolet Cruze LTZ 1.4L MIL Lamp on VIN: 1G1PH5SC6C
Vehicle arrived with CEL on and low power. Scanned codes and suspected boost sensor on inlet pipe to throttle body. Scanned data comparing baro readings KOEO and boost sensor baro reading (1.85psi) did not agree with MAP sensor reading (14.21 psi). Dis-con... Trouble codes: P0236 (Boost sensor performance), P2227 (Baro sensor performance)
2016 Chevrolet Impala LT 3.6L monitor reset VIN: 2G1115S37G
replaced evaporative canister assembly and can not get evaporative monitor to reset after multiple drive cycles
1979 Pontiac Firebird Trans Am 6.6L oil flow to rockers VIN: 2W87K9L165
2 years ago our customer spun a bearing in his 403. Got it replaced, what he didn't know at the time was that they replaced it with a olds or buick 350. Came to us because of the lack of horsepower. We installed an aluminum intake with a edelbrock carb. Ha...

Fixes & Summaries for GM
Fix/Summary Answers
2009 Cadillac STS 3.6L Misfire VIN: 6G1EL55779
Thanks for the replies. Cylinder 3 still slightlt misfiring. Probably mechanical problem due hydro lock when injector was stuck open. Client don't want to fix it. Will use car this way. But now situation is better. Not setting misfire code anymore. Because ... Trouble codes: P0303 (Misfire cylinder 3).
2010 Chevrolet Traverse LT 3.6L Poor Idle Quality, Stall, Misfire VIN: 1GNLVGED1A
Thank You one and all for your replys. CAT was the correct answer. We will be sending this to the Exhaust Shop for repairs. Thank You again. Trouble codes: P0336 (Ckp), P0102 (Low MAF Frequency), P0036 (B1 S2 Heater low volt), P0300 (Random Misfire), P0335 (Ckp), P3026.
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