1996 5.0 Won't Idle cold
Senior Member
Joined: Jul 2004
Posts: 6,200
Likes: 39
From: Easton, Pa.
Check out the following.
Engine coolant sensor ( ECT).
Air charge sensor (ACT).
Their plugup and wiring.
Next if one or more of these don't fix the problem then the IAC (idle air control) for being clean, and clean the throttle body bore and plate area with throttle body cleaner.
The EGR for being stuck open a small amount.
These are all directly related to cold start and run, until the Oxygen sensors heat up and take control of the fuel delivery in closed loop operation.
Engine coolant sensor ( ECT).
Air charge sensor (ACT).
Their plugup and wiring.
Next if one or more of these don't fix the problem then the IAC (idle air control) for being clean, and clean the throttle body bore and plate area with throttle body cleaner.
The EGR for being stuck open a small amount.
These are all directly related to cold start and run, until the Oxygen sensors heat up and take control of the fuel delivery in closed loop operation.
Thread Starter
|
Member
Joined: Jun 2004
Posts: 12
Likes: 0
Thanks... I have a new EGR Valve and Sensor. I suspect the IAC valve is the issue.
I drove it to work today and it still does not idle 100% even with it warmed up. Guess I will pull the IAC tonight and clean her and se what happens.
I thought it would throw a code for this but I guess not.
Hub
I drove it to work today and it still does not idle 100% even with it warmed up. Guess I will pull the IAC tonight and clean her and se what happens.
I thought it would throw a code for this but I guess not.
Hub