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Old 13 Apr 2010, 12:46 pm
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Default what causes bad iacv or bad idling?

what cause the Iacv to be dirty? in a car. i know if its dirty or bad it causes the idle to Fluctuate or abnormal idling. but what causes it to do so? is it bad maintaince?

and what else cause bad idling?
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Old 13 Apr 2010, 01:01 pm
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Join Date: Aug 2007
Posts: 382

heres a list i would check in this order, i learned its best to go from cheapest to most expenicve spark plugs, distrubiter cap/roater. fuel filter, air filter, spark plug wires , egr valve,fuel pump ummm thats all i can think of off the top of my head >.< bad personally id check the fuel filter first
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Old 13 Apr 2010, 01:16 pm
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Assuming the car is a Honda, you should check your coolant first. If the coolant is low, top it off and see if the problem goes away. If not, it is likely your IACV is faulty. You can try cleaning the screen in it or tapping on it with the butt of a screwdriver, but this rarely fixes the problem.
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