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940 no overdrive after replacing filter and fluid 900 1993

posted by  chrisbradberry on  Mon Jan 18 19:15 CST 2021
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last visit: Tue Dec 8 13:56 CST 2009
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300K miles. Trans pan gasket was leaking so I removed the pan, replaced the filter and pan gasket, and refilled with new fluid. Afterwards it won't shift into overdrive (4th gear). The OD solenoid circuit is working; I've done multiple things to confirm that the OD solenoid circuit is not the problem. After reading some other threads about overdrive problems I'll probably try a flush next, in case there's a blockage within the valve body that's preventing the trans from shifting into 4th gear. I already ran the engine with the trans in gear while the OD solenoid was removed, and got a good spray of fluid. My suspicion is that the valve body needs to be rebuilt. Other than the front and rear seals in the trans being replaced at about 150K miles, the trans has not had any work done to it. I welcome suggestions. Thanks






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New 940 no overdrive after replacing filter and fluid [900][1993]
posted by  chrisbradberry  on Mon Jan 18 19:15 CST 2021 >


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