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03/04/2023 5:01 pm
Topic starter
So my rpm’s sit between 500 and 1000 rpm, the needle goes right below one drops down idles for a few seconds and repeats, I have a 2001 Mustang Gt 4.8L V8 with 140764.7 miles on it. What can cause this problem?
1 Answer
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03/04/2023 8:12 pm
Faulty idle control valve. It mostly likely the culprit
Vacuum leak, spark plugs, wires, coils,maf, iat, . Map sensor, coolant temp sensor clogged fuel filter. There are a lot of possibilities. Look into the idle control valve first.
