HZJ74 Transmission problems

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Joined
Jun 29, 2010
Threads
12
Messages
133
Location
North Idaho
In need of some help and I'm out of ideas. I recently imported an HZJ74 with the A442 automatic transmission. After importing, I proceeded to do a baseline by replacing all fluids as I typically do. After doing a drain and fill on the transmission, the transmission is no longer fully operational. When put into drive, you only have access to 3rd gear including from a stop. If 2nd is selected, there is no change. If L is selected, it will go into first with no issue. It will also go into reverse with no issue. Shifting back into D, you are still limited to 3rd gear.

Things that have been tried.
Solenoids and transmission filter replaced with brand new OEM
Pin to pin continuity check
Transmission speed sensor replaced
ECT computer replaced
All grounds have been cleaned

None of these have changed the symptoms at all. Prior to the drain and fill, the transmission worked great and was driving around with zero issues.

Has anyone had this experience or know of someone that has? If so, what ended up fixing the problem?
 
Check levels hot and cold especially since you’ve driven it now. They’re sensitive to level. Toyota techs always measured what came out so they knew what to put back in. Never seen that done anywhere else in the industry.
 
Check levels hot and cold especially since you’ve driven it now. They’re sensitive to level. Toyota techs always measured what came out so they knew what to put back in. Never seen that done anywhere else in the industry.
Fluid levels have been double checked and verified it's within range once warmed up. No change in symptoms.
 
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