Archived no overdrive 97 12v auto

[stone4x4]

HELP no overdrive 97 12v auto NEED TO GET HOME

1997(11-96)

2500 club cab 4x4 auto

tested the tps 1. 12volts idle 3. 67 wo

scan tool said 1. 12volts idle 4. 33wo

changed brake switch

trans shifts 123and locks 3rd

when i turn the OD on it unlocks the TC then locks back in 3rd the whole time

it is a jasper transmission with 15k on it

can you tell me whats wrong?

 

[fox]

Possibilities are OD section bad, no 12 volts to OD soliniod,tps, or OD soliniod bad.

 

[stone4x4]

thanks i'll try to find a way to test those

can the temp switch do this?

 

[stone4x4]

what i have tryed

1000ohm in the temp send

jumped transmission relay

changed tps

checked all comections to the transmission

do i have any more test to do before i call AAA to haul it home?

 

[fox]

The temp switch can do it too, but you checked it.

I'm not sure which wire it is fo OD at the trans.