erratic idle
99 escort se 2.0 5-speed 140k sometime the idle will run up to around 2500 rps and hold some times it hangs around 12-1500 rpm and some times its normal. Can't see a pattern and I never know when its going to do it. I suspect an IAC motor but it is not throwing any codes. Looking for ideas or suggestions.
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You may not be seeing any codes because,
The computer thinks it is sending the message to the IAC and the IAC is supposedly responding, but mechanically it is not . The IAC possibly is sticking and the idle is erratic. Replacing it usually gets rid of the problem. |
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