crankshaft sensor

1999 CHEVROLET SILVERADO
120,000 MILES
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RAINES1502
  • MEMBER
  • 1 POST
My truck started misfiring. Put on the computer says crankshaft sensor. I put a new sensor, the truck would not start, replaced 3 other times. Put old sensor back on & truck will start. I have replaced plugs and fuel pump and filter. When the truck is cold it will barely run & misfires bad. When truck warms up it doesn't misfire as bad. Took truck to mechanic he can not find what is wrong. Thank You
Jan 9, 2012 at 7:03 PM
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RIVERMIKERAT
  • ✓ASE Certified Mechanic
  • 6,110 POSTS
  • ASE Certified Mechanic
Is the sensor properly adjusted? Are the wires firmly connected? Check and clean the EGR. Check compression.
Jan 11, 2012 at 5:15 AM
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