SPONSORED LINKS

1997 Jeep Laredo idles fine till 1500 RPM

Tiny
JOHNNY 3524
  • MEMBER
  • 1997 JEEP GRAND CHEROKEE LAREDO
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 170,000 MILES
The engine willl idle fine till it reaches about 1500 rpms then starts skipping and popping in exhaust so far I have replaced fuel pump, injectors. Spark plugs, wires, distibutor cap, rotor button, map sensor, crank sensor, distibutor, ecm, throttle position senser and nothing has helped. Dealer checked out and says engine may need replacing due to 15 inches of vacume. Any suggestions? Also replaced oxygen sensor and catalytic converter
SPONSORED LINKS
Saturday, July 11th, 2009 AT 11:34 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Have you checked closely for vacuu leaks? Also, if the intake vacuum is low, I would recommend doing a compression test. Here is the how to:

https://www.2carpros.com/dia/how_to_check_compression.htm

Let me know what you find.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, August 25th, 2009 AT 11:52 PM

Please login or register to post a reply.

Related Engine Revs Up Content

Idle Air Control Motor Replacement
GUIDE
Idle Air Control Motor Replacement
The idle air control motor or idle speed control motor is designed to adjust the air flow into the intake manifold at engine idle. Engine idle speed is monitored by the PCM...
VIEW MORE

Sponsored links