2004 prerunner chirping under the hood


Asked by Oct 24, 2019 at 05:49 PM about the 2004 Toyota Tacoma

Question type: Maintenance & Repair

When the motor is idling it is quiet. But when put
into gear it chirps and when the a/c is turned on it is
louder. Sprayed wd40 on the belts and no change.

3 Answers


My bet is one of the pulleys, the bearing is worn. Remove the serpentine belt and spin the pulleys by hand with the engine off.


I will do that. Thank you!


Someone thought it might be harmonic balancer separating. I didnt think so though because theres no vibrations

Your Answer:


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