1990 Chevy Cheyenne

1990 CHEVROLET CHEYENNE
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BFREEMYER
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  • 1 POST
Engine Performance problem
1990 Chevy Cheyenne V8 Two Wheel Drive Automatic

My truck has started running rough, the fuel mileage has decreased a little, transmission shift points are not the same, it occassionally will stall while under acceleration and start again without me doing anything. I think either the throttle position sensor is bad or the MAP sensor, not sure which to try first though.
Apr 27, 2010 at 4:35 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
When the last time you gave it a tune-up? If just recently go with the TPS and then the MAP
Apr 27, 2010 at 5:08 PM
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