[Transmission disengages after braking]

Thank you so much for the advice. We will get after it this weekend.

[Transmission disengages after braking]

It happens when he's driving around. He can press the brakes to put the it in gear after restarting and drive off as normal, but the next time he hits the brakes the tranny acts like it's in neutral (no forward or reverse gears) until he turns the rig completely off and restarts it.

[Transmission disengages after braking]

Hello,

My son recently purchased a 1991 SE, automatic transmission, with 130k miles. We think it is a Canadian model. A perplexing problem arose yesterday. Every time he hits the brakes while the rig is in gear the transmission goes dead. No forward or reverse gears. If he turns the engine off and restarts the rig, the transmission functions as normal until he hits the brakes after putting it in gear. We have no idea what kind of maintenance has been performed over the life of the tranny. Could this be clogged filter(s) etc, or some type of sensor that is or has failed? Thank you for any suggestions.