- Joined
- Oct 22, 2014
- Messages
- 181
- Reaction score
- 16
- Points
- 18
- Location
- Albuquerque NM
- Vehicle Year
- 1989
- Make / Model
- Ranger
- Engine Size
- 2.9 L
- Transmission
- Manual
Because of idle problems I removed and inspected the IAC.
What I observed:
When the solenoid is removed valve closes and stops airflow.
Valve rod moves smoothly and spring returns it to closed.
When solenoid is on, rod is pushed and air can flow.
When installed on engine, air is always flowing through IAC. Even at high RPM.
Does this sound like the IAC is not working correctly? Should air stop going through the IAC at high RPM? Should the valve be completely closed with key off?
Thanks
What I observed:
When the solenoid is removed valve closes and stops airflow.
Valve rod moves smoothly and spring returns it to closed.
When solenoid is on, rod is pushed and air can flow.
When installed on engine, air is always flowing through IAC. Even at high RPM.
Does this sound like the IAC is not working correctly? Should air stop going through the IAC at high RPM? Should the valve be completely closed with key off?
Thanks