Idle Issues are still a Problem
#1
Junior Member
Thread Starter
Idle Issues are still a Problem
I followed everyone's suggestions to total clean my throttle body on my 89 Cherokee 4.0. In fact I have a spare head and an entire engine setting here so I pulled one throttle off the head and supper cleaned it. I pulled all the parts off idle step motor, throttle sensor cleaned out every thing and all dirt blew out the passages with air, installed a new gasket and the problem dieing once in a while.
Now the jeep will not idle under 1200 to 1500 RPM in park and about 1000 RPM in gear. Thinking that I had made a mistake cleaning the first throttle plate, I pulled the current one and clean it up and install it. The same 1200 1700 RPM I am at a lost of what to try without purchasing an idle step motor. I have replace all the vacuum lines, have not vacuum leaks. I put a vacuum gauge on it the other day and it ran a steady 14-16 pounds.
Any ideas are welcome!
Thanks
Dennis
Now the jeep will not idle under 1200 to 1500 RPM in park and about 1000 RPM in gear. Thinking that I had made a mistake cleaning the first throttle plate, I pulled the current one and clean it up and install it. The same 1200 1700 RPM I am at a lost of what to try without purchasing an idle step motor. I have replace all the vacuum lines, have not vacuum leaks. I put a vacuum gauge on it the other day and it ran a steady 14-16 pounds.
Any ideas are welcome!
Thanks
Dennis
#3
Junior Member
Thread Starter
After running it with a vacuum gauge and seeing very little movement in the gauge so I did not spray the intake with cleaner to check for a leak. It has no signs of a leak. No noise to speak of and no lack of power.
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