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Old 01-06-2010, 04:41 PM
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overdrive annoying

hi any ideas welcome.overdrive will sometimes work after long run but have to do 80mph 2 get it 2 engage then works fine until next time.wat do speed sensors actually do also temp sensor for overdrive where is it thanks andy 2000 grand cherokee 4.0 petrol 42re auto
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Old 01-06-2010, 04:45 PM
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Re: overdrive annoying

give us the facts andy.....year motor, trans, transfer case,etc.....
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Old 01-06-2010, 04:52 PM
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Re: overdrive annoying

4.0petrol 2000 grand cherokee limited 42re trans
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Old 01-06-2010, 04:59 PM
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Re: overdrive annoying

get a service manual here

http://carservicemanuals.blogspot.co...anual-pdf.html

or this one

http://manualspace.com/jeep-cherokee...air-manual.htm
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Old 01-06-2010, 05:49 PM
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Re: overdrive annoying

On my ZJ with e I6 overdrive would disengage after while on a long haul. I had to stop and turn the Jeep off for it to get to engage again. I don't know what its problem was.

How the tranny's fluid? Perhaps it needs a service?
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Old 01-07-2010, 10:26 AM
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Re: overdrive annoying

I tow a 3k lb camper with my 2003 4.0 42re Grand Cherokee. The transmission would not downshift when the overdrive was turned off. But the trans would shift normally when the overdrive off. Turned out to be a combination of a bad torque converter and valve body not allowing the fluid to reverse itself when the overdrive was turned off. It is much better now, but it is far from perfect.
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