Bought used car big mistake but I gotta fix it (rough idle)

Tiny
ABARRAZA94
  • MEMBER
  • 2004 CHEVROLET CAVALIER
  • 200,000 MILES
I have replaced the spark plugs, replaced the idle air control valve, I have gone in for an oil change or tune up since I havent had much left over from my paychecks could you all possibly help
when idle w/ a/c on it over heats and dies, and w/o a/c on idle the RPM's fluxate up and down and it some times drops and dies while idle, as well as the car itself hesistates.
alot huh?
Do you
have the same problem?
Yes
No
Monday, June 24th, 2013 AT 9:00 AM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
First eliminate all vacuum or air leaks in the system and make sure the EGR valve is closing all the way and doesn't have carbon stuck in the pintle. Try cleaning the throttle body. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle.
Was this
answer
helpful?
Yes
No
Monday, June 24th, 2013 AT 9:23 AM

Please login or register to post a reply.

Sponsored links