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Prev Professional Automotive Repair Technical Discussions for January 30, 2020
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2011 Chevrolet Silverado 1500 LT 5.3L Misfire VIN: 1GCPKSE38B
it has an misfire on cylinders 2,4,6,8 misfire very slight counts on 6 and 8 2 and 4 are the worse. checked for an clogged cat. cat passed. flowed injectors. all flow ok.spark plug on cylinder 2 is sooty removed cylinder 1 nice and clean. has good spark. c... Trouble codes: P0300

Fixes & Summaries for GM
Fix/Summary Answers
2013 Chevrolet Equinox LT 2.4L Poor Idle Quality VIN: 1GNALBEK6D
First of all ,thank you all for responding.I found after it gets hot the oil pressure goes very low.MY head was so fixaded on the fuel pressures I didn't think about the Oil pressures.The customer decided he is going to drive it till it quits. Keith [...]... Trouble codes: P0089, P228D.
2009 Pontiac Vibe 2.4L MIL Lamp on, Open loop VIN: 5Y2SP67069
Fixed it. After i keep erasing the codes and Letting it go in closed loop for a min the sensor was lean at 4.05v(A/F PID) and climbing but the down stream was pigged Rich at .98. I ended up telling the customer I need to get a factory sensor because I don't b... Trouble codes: P2237 (O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 1).
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