Hesitation/fluctuation of RPM's when driving

2001 CHEVROLET IMPALA
285,000 MILES • 3.8L • 6 CYL • 2WD • AUTOMATIC
Avatar
FARR2007
  • MEMBER
  • 244 POSTS
When driving the RPM's fluctuate and car jerks up and down.
Sep 16, 2018 at 11:31 PM
Advertisement
Avatar
STEVE W.
  • ✓Experienced Mechanic
  • 15,401 POSTS
Is the check engine light on? It could be various things but a misfire would be the most likely. That should trigger the light and set a code.
Does it do it constantly, even with it out of gear?
Sep 20, 2018 at 6:39 AM
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.

Ask a new question

Frequently Asked Problems for This Vehicle