High pitched whine on hard acceleration especially uphill after trans downshifts. - JeepForum.com
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Unread Yesterday, 12:47 PM   #1
93zjer
Registered User
1993 ZJ 
 
Join Date: Jan 2010
Location: Humboldt, California
Posts: 292
High pitched whine on hard acceleration especially uphill after trans downshifts.

93 ZJ 4.0 AW4

It used to happen only when climbing a hill on the highway, it would make a high pitched whine for one second just as the trans down shifted. Now it happens with almost any hard acceleration after downshifting and last for more like 3 seconds.

Transmission fluid was flushed and refilled about 2 years ago. Its full on the dipstick checked hot, while idling in gear.

Sounds like its coming from the middle of the jeep not the engine compartment.

Thanks!

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