all of the sudden it loses power

Avatar
JENNIFERV444
  • MEMBER
  • 3 POSTS
When started it runs rough also i can be driving down the high way doing 65 and all of the sudden it loses power i can step on the gas and no go.

Rough running at start, when driving it loses power it step on gas it does nothing the speed drops at times pressing the gas peddle does nothing at all this is not constant either, sometimes when i am losing speed i can step on gas and it will i guess grab and will gain speed again but it doesn't last long,

Theres been times when it wouldn't go at all but yet it stays running??? I have had it on several code readers and each one comes up with something different, we have replaced the throttle body sensor, the oxygen sensor, to no avail it still starts rough like it's missing, also it seems to act up more on warm days and when i travel out of town.
Jul 15, 2012 at 11:56 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Check fuel pump pressure. It sounds like a weak pump.
Jul 15, 2012 at 12:03 PM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle