1995 Chevy Truck Hestitation

Tiny
MG43746
  • MEMBER
  • 1995 CHEVROLET TRUCK
  • V8
  • 2WD
  • AUTOMATIC
  • 187,000 MILES
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?
Friday, March 6th, 2009 AT 11:50 AM

1 Reply

Tiny
JAMES W.
  • 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.
Was this
answer
helpful?
Yes
No
Monday, March 9th, 2009 AT 12:32 PM

Please login or register to post a reply.

Related Oxygen Sensor Replace/Remove Content

Oxygen Sensor Replacement
VIDEO
Oxygen Sensor Replacement
Instructional repair video
Oxygen Sensor Replacement
GUIDE
Oxygen Sensor Replacement
An oxygen or lambda sensor is used to determine the engine exhaust mixture which can then be controlled by the computer. These sensors are equipped with a heater that can...
VIEW MORE