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  1. 9

    97 gmc runnig bad. rough rich missing and back firing 5.7 vortec

    97 gmc 5.7 is running very rough rich and missing and back firing the codes were oxygen sensor bank 2 sensor 1 no activty. This happend in november and i was advised to install new cam position sensor at local autoparts store and it fixed it. Truck had not ran that good in years. Last weekend...
  2. 9

    5.7 vortec running bad need help

    Im new to this site. Not sure if I am posting this in the right area. My 97 5.7 vortec started running bad. Missing backfiring and running extremely rich. The same thing happened a few months ago and it had codes for o2 sensors. The local parts store recommend cam position sensor. Fixed the...
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