89jeeplaredo
NAXJA Forum User
- Location
- joliet
After doing much research on here for my high idle situation on my 89 Cherokee w/ 4.0L, my high idle was resolved by something else other than the common things such as the IAC, EGR, vacuum leak, TPS....etc.
I adjusted the little set screw on the throttle body a little bit and it brought my idle down to right where it should be.... down from 1300 to 800 rpm's in park w/ about 17 inches of vacuum.
At first I tested every other component electrically and mechanically (which were within spec) and tried to find a bad vauuum leak to no avail. Since I have only owned the vehicle for a few weeks now, I was not sure if the previous owners tampered with the set screw.
So I adjusted the screw and presto, problem solved so far! Just thought I'd share.
I adjusted the little set screw on the throttle body a little bit and it brought my idle down to right where it should be.... down from 1300 to 800 rpm's in park w/ about 17 inches of vacuum.
At first I tested every other component electrically and mechanically (which were within spec) and tried to find a bad vauuum leak to no avail. Since I have only owned the vehicle for a few weeks now, I was not sure if the previous owners tampered with the set screw.
So I adjusted the screw and presto, problem solved so far! Just thought I'd share.