Question about Ford Escort
Is the check engine light on? Sounds like it possibly may be a coolant temperature sensor for the computer. Also sounds like a few other things but if the check engine light is on, drive....limp on down to autozone and ask them to scan your codes (and on a ford, scan it anyway because the light need not be on for there to be memory codes or pending codes present)
You can cause your own check engine light to come on by trying the following....while running and at operating temperature...unplug the Mass AirFlow Sensor and see if the idle or driveability changes, do the same with the Idle Air Control Motor, Engine temperature sensor for the PCM. Also, get a can of carb clean or brake clean or something when it's at operating temperature, spray around the intake and all areas that you see vacuum hoses to see if you have a vacuum leak (you will notice a definite change in idle if you found a leak with carb clean)
Curiousity though, year and mileage?
Posted on Mar 29, 2015
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Posted on Jan 02, 2017
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