Strange idle at normal operating temps - JeepForum.com
 
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post #1 of 5 Old 02-25-2020, 08:00 PM Thread Starter
rockawaywk
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2006 WK 
 
Join Date: Dec 2019
Location: Queens
Posts: 23
Strange idle at normal operating temps

My 4.7 has some random idle issues at normal operating temperatures. It will bog down to 400-500 RPM once in a while and is very noticeable. Anyone have a similar issue and resolved it? What should I check?

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post #2 of 5 Old 02-27-2020, 04:16 AM
caulk04
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Location: Greenville
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Once upon a long time ago I had a truck with a 4.7 and had this issue for a while. My solution ended up being the IAC motor.

On the drivers side of the throttle body are two items. The upper is the TPS (throttle position sensor). The lower is the IAC (idle air control) motor.

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post #3 of 5 Old 02-28-2020, 11:57 AM
84dime
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I second looking at the IAC. They can cause all sorts of weird idle issues.

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post #4 of 5 Old 03-01-2020, 06:17 AM Thread Starter
rockawaywk
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Location: Queens
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Thanks guys. IAC valve going in today. Let’s see if that solves the problem.
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post #5 of 5 Old 03-05-2020, 07:10 PM Thread Starter
rockawaywk
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Problem solved! IAC fixed it. Thanks guys.
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