kygpn
NAXJA Forum User
- Location
- louisville ky
On my 89 4.0 i have been plagued with an rough idle after driving. however it is not consistant. I have tuned it up recently as well as replaced the throttle position sensor and checked for vacumn leaks. these have not seemed to effect this issue. I have hooked it up to a scanner but still have not located this problem. can anyone give me direction to solve this problem?