SPONSORED LINKS

Acceleration problems

Tiny
RODNEY CAR CARE
  • MEMBER
  • 2003 GMC ENVOY
  • 4.2L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
The car sounds rough when I start it, when I take off it it moves slow (creep) then just kicks in and rides smooth, it never goes above 30 mph and if I try to push it pass 30 mph it start to shake like it wants to cut off. I have changed the coil pack, the cam censor, and the acceleration pedal. Still no change, please help me.
SPONSORED LINKS
Monday, February 4th, 2019 AT 6:44 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hello,

It sounds like you are in limp mode due to a dirty throttle bore. Here is a guide to help us fix the problem:

https://www.2carpros.com/articles/reduced-power-limp-mode

We should run the codes as well.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please run down these guides and report back.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, February 5th, 2019 AT 11:36 AM

Please login or register to post a reply.

Related Engine Low Power Content

Fix an Engine with Low Power!
VIDEO
Fix an Engine with Low Power!
Instructional repair video
Symptoms of Low Engine Power
GUIDE
Symptoms of Low Engine Power
The power your car's engine is producing is important. When you step on the gas you need your car to accelerate, mainly to keep you out of trouble when getting onto the...
VIEW MORE

Sponsored links