Whistle while you drive?
I have a whistling that is directly related to rpm under load but only occurs above 10 mph... It sounds like a belt squeal, just a little higher and at lower rpm it puffs.... like airflow.. I am looking for a diagram for the vacuum lines if anyone knows where to find one???
99 discovery II |
check your idler pulley is it made out of plastic or metal? and if it is metal does your cruise control work?
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metal, and yes, the cruise control is fine:(
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sometimes an excessive amount of dust can build up on your pulleys and can cause a whistle type noise. if you live in a dusty place try blowing them out with an air gun. and i will get you a vacuum diagram, and the sai injection routing. check all the above and let me know if it gets any better.
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well. dusty isn't really applicable. We are in fairbanks alaska and the problem started around -20 weather, but temp doesn't seem to matter.. it's breakup now and we have driven through deep water and soaked the entire engine compartment, to no avail.
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