MY TRUCK WILL NOT ACCELERATE CORRECTLY

  • Tiny
  • Dblevins93
  • 1999 FORD F-150

I drive a 1999 Ford F150. And loses ability to accelerate at all once hitting 45 mph. Any idea was what to could be wrong?

I have been having this problem lately where my truck won't accelerate like it should. It feels like it is missing. Also once I hit 45mph in my truck, I lose all ability to accelerate and have to let it drop down to 25 mph or below before I can accelerate again.

My dad thought it might be a spark plug issue but after replacing the spark plug, the problem is still persistent.

Do you
have the same problem?
Yes
No
Saturday, July 21st, 2012 AT 9:51 PM

1 Reply

  • Tiny
  • ASEMaster6371
  • EXPERT
  • 25,554 POSTS

Start with a fuel pressure check. Spark would be next and then compression.

Bad cat converter would also cause the issue

Roy

Was this
answer
helpful?
Yes
No
Saturday, July 21st, 2012 AT 11:26 PM

Please login or register to post a reply.

Other Engine Low Power Questions