Car Problem Reports

Toyota Pickup Automatic Transmission May Not Shift Correctly at High Mileages

 
Toyota Pickup Problem
8 Reports
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Model Years Affected: 1992, 1993, 1994, 1995

Drive Trains Affected: 2WD, 4WD

Average Mileage: 150,003 mi (114,000 mi - 186,011 mi)

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At higher mileages, (125,000-150,000) the automatic transmission may not shift correctly. This can be caused by the throttle position sensor being out of adjustment or a shift solenoid needing to be replaced. Typically the transmission does not need to be completely overhauled.

  • paccman1, , 4WD, 150,000 mi
     Rookie

    Transmission will not downshift when depressing the accelerator on the highway, or when going on a slight incline at a speed higher than 30 miles per hour. I have to manually drop the transmission from D to 2 in order to accelerate when not on the Highway, and I have to disengage overdrive while on the highway. I intend on replacing the shift solenoids and installing a performance kit in the valve body to remedy the problem. If I absolutely need to, I will replace the TPS (throttle positioning sensor) and have it calibrated (although from what I understand it is a simple open circuit, closed circuit switch and not a proportional switch as the ECM, EFI, and control system is somewhat obsolete).

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  • Visitor, , 2WD, 114,000 mi

    Won't shift unless let off the pedal..

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