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Prev Professional Automotive Repair Technical Discussions for January 1, 2015
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1997 Ford F-150 XL 4.2L MIL Lamp on, fuel trim VIN: 1FTDX1721V
Here is what happened. After I performed another compression test all cylinders, lead-down test on bank #2, isolated (unplugged) O2 sensors and confirmed lean signal at bank #2 upstream signal, and tested for crankcase vacuum all to no conclusion. My servic... Trouble codes: P0174.
2006 Ford Expedition XLT 5.4L Poor Idle Quality, Misfire VIN: 1FMPU16546
Thanks to all that responded. Customer is going to park it and save money for engine. Trouble codes: P0581.
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