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I am start an air idle speed control on my 99 ford escort

now it photos real high JA...
I am start an air idle speed control on my 99 ford escort now it photos real high
JA: How many miles are on the car? What size is the engine?
Customer: The car has 100,380 miles and it has a 2 L in it
JA: Are you fixing your Escort yourself? What have you tried so far?
Customer: Yes I am fixing the car myself I installed a new air I installed I knew Air idle controlthe car was running rough now the car is running at a real high idle
JA: Anything else you want the mechanic to know before I connect you?
Customer: Yes I also put in new injectors new wires new plugs new ignition coil
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Answered in 5 minutes by:
8/19/2017
Eric
Eric, Automotive Repair Shop Manager
Category: Ford
Satisfied Customers: 32,818
Experience: Automotive Repair Shop Manager, Technician
Verified

HI,

Will the idle come down by tapping on the gas pedal a few times?

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Customer reply replied 3 months ago
No

HI,

Ok, 4 possible causes -

Throttle actuator cable binding, throttle throat plate(butterfly valve) sticking or bent, or faulty TP sensor, air intake leak

So you need to check the throttle cable and actuator for binding when moving it by hand and correct as needed.

If ok, check the throttle throat plate for opening and closing as you move the throttle actuator and check for any carbon deposits preventing it from closing and clean as needed.

If ok, with engine idling, spray the air intake tube between the air cleaner and throttle body with carb cleaner, then the throttle body where it bolts to the intake, as well as the IAC valve you replaced, and finally the vacuum hoses. IF idle changes when one is sprayed, that is your culprit

If all the above are ok, replace the TP sensor

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Eric
Eric, Automotive Repair Shop Manager
Category: Ford
Satisfied Customers: 32,818
Experience: Automotive Repair Shop Manager, Technician
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Category: Ford
Satisfied Customers: 32,818
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