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Steve, Ford Technician
Category: Ford
Satisfied Customers: 6915
Experience:  30 years working for Ford dealer. Ford Master tech.
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87 Ford Ranger XLT 2.9 v6At idle engine RPM fluctuates. Why?

Customer Question

87 Ford Ranger XLT 2.9 v6
At idle engine RPM fluctuates. Why?
Submitted: 6 years ago.
Category: Ford
Expert:  Steve replied 6 years ago.

Steve :

Hello and Welcome to Justanswer, My name is Steve and I am here to try and assist your with your question

Steve :

the curb idle is to low from sludge build up on the throttle plates and idle air control motor

3:09 AM

buy carb cleaner and get a old toothbrush and clean the throtle body plate sludge

3:10 AM

remove the idle air control motor and spray some into the iac valve but quickly remove it and blow it out cause the valve to go bad if left i for to long