Car wont stay Running.

1999 NISSAN ALTIMA
Avatar
CHADM
  • MEMBER
  • 5 POSTS
My nissan runs great until you put it in a forward gear. When you hit the gas to go forward, the car drives to accelerate and then the rpms drops off but they go back up and then bounce the whole time like a rev-limitar. Does not do this in park, neutral or reverse. A local mechanic can not figure out why it is doing this.
Dec 23, 2011 at 3:36 AM
Advertisement
Avatar
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
You sure transmission is not slipping -if not check/test TPS and VSS sensors-also check fuel pressure
Dec 23, 2011 at 3:52 AM
Avatar
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
BTW do you have a CEL?
Dec 23, 2011 at 4:06 AM
Avatar
KHLOW2008
  • CAR REPAIR CONTRIBUTOR
  • 41,814 POSTS
Check for vacuum leakages, especially the air intake hose. Bad engine mounts would cause the engine to move backwards when shifting to forward gears and this can open up leakages in cracked air hoses causing the problem.
Dec 23, 2011 at 12:30 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.