1996 Ford Ranger 2.3L idled high. I removed connection to IAC to confirm it's working. Steps I took:
1. Cleaned the IAC. No change.
2. Removed the MAF connector which negatively impacted idle. Conclusion: MAF is fine.
3. Looked around and found that the PCV had popped out of the grommet. Didn't see it initially because it was black, tucked away, and disgustingly grimy. This fixed the bulk of the problem.
4. Cleaned the throttle bottle with throttle body cleaner, replaced the PCV and grommet, new air filter, and adjusted the idle screw.
Smooooooth idle once again.
Негізгі бет SOLVED! 1996 Ford Ranger 2.3L High Idle (solution in description)
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