1995 Chevy Truck Hestitation

1995 CHEVROLET TRUCK
187,000 MILES • V8 • 2WD • AUTOMATIC
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MG43746
  • MEMBER
  • 1 POST
My truck this winter started to hesitate when the accelerator is pushed down. I had the engin code read and it gave a code of #44 engin lean so we did a tune up and replaced the oxygen sensor. The truck still hesitates when accelerating when cold out the check engin light comes on and is still getting the 44 code. When I slow down the check engin light clears. On warm days the truck runs normal. Do you have any suggestions on what is going on?
Mar 6, 2009 at 3:50 AM
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JAMES W.
  • ✓Experienced Mechanic
  • 2,394 POSTS
Hoe old is your fuel filter? If filter is good, you've already changed the O2 sensor, so I would look for a "gross" vacuum leak and run a fuel pressure test. Hope this helps. Let us know what you find.
Mar 9, 2009 at 5:32 AM
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