1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
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17,294 Posts
The engine/transmission assembly will tip to the right in Drive and tip to the left in Reverse. Make sure that all wiring harness connectors are securely plugged in, tied down and not rubbed through on any sharp edges that might ground out a wire and away from any hot exhaust parts that could burn through any plastic insulation and also ground a wire.
When the engine tips to the left, make sure that the right motor mount is not causing excessive movement. I've seen distributors hit the firewall from bad mounts.
The 46RE transmission may have internal ATF pressure leak that 'turns on' the lock-up torque converter when put in reverse. Worn front pumps and torque converters can do this. An ATF pressure gauge screwed into a TCC-apply port can see if this is happening. Electrically it may be staying off, but hydraulically may be coming on.
Any fault codes or have you tried any data recording with a scan tool to see what leads up to the point of stall?
When the engine tips to the left, make sure that the right motor mount is not causing excessive movement. I've seen distributors hit the firewall from bad mounts.
The 46RE transmission may have internal ATF pressure leak that 'turns on' the lock-up torque converter when put in reverse. Worn front pumps and torque converters can do this. An ATF pressure gauge screwed into a TCC-apply port can see if this is happening. Electrically it may be staying off, but hydraulically may be coming on.
Any fault codes or have you tried any data recording with a scan tool to see what leads up to the point of stall?
