SPONSORED LINKS

Surging issue

Tiny
GRANNYSRIDE
  • MEMBER
  • 1989 FORD CROWN VICTORIA
  • 130,000 MILES
Hi, I have a 1989 crown vic with 130000 miles in it. Recently the alternator went out. I replaced it without any issues. However, since I replaced the alternator the engine surges up(200-300rpm )(no tach) and down quite a bit when cold. However when the transmission is put into drive the engine idle smoothly. It stops the surging when it warms up. I beleive that there maybe an issue in the choke of the motor. I also cannot get it to pass Oregon DEQ. Eventhough I just replaced the oil, cap and rotor. Next step maybe plugs and wires. But I have a feeling the root problem has something to do with this choke issue. I appreciate the help.
SPONSORED LINKS
Tuesday, December 6th, 2011 AT 1:17 AM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,230 POSTS
Check for vacuum leaks and check the IAC to see if it is working properly.
Was this
answer
helpful?
Yes
No
Tuesday, December 6th, 2011 AT 1:30 AM
Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
I would suspect a vacum leak, double check your work and make also make sure al;lsure you didn't knock any hoses off or leave any off by accident. Also make sure all plugs are plugged in.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, December 6th, 2011 AT 2:26 AM

Please login or register to post a reply.

Related Engine Surge Content

Surging
GUIDE
Surging
An engine or motor surge is caused by an imbalance in the computer system which cannot be corrected within the parameters of the vehicle's operating program, in other...
VIEW MORE

Sponsored links