Transmission

[Can1991Ram]

The auto Trans on my 1991 ram 50 seems to have a big overlap between first and second gear during its shift.
Not sure if the band's need adjusting..
Do these trannies still have a kick down rod or cable?

[pennyman1]

They have a cable kickdown for shifting - The correct adjustment is just a little slack with the carb at rest

[Can1991Ram]

I have fuel injection.

[pennyman1]

Then there is a ecm for the tranny under the dash that controls the shifting - look up thread for tekjones tranny shifting issues.

[minimotos95]

I know my van has a FI 2.4l like the 90-92.5 4 banger trucks but a different slushbox. It has a kickdown cable, not only does it have one it's $80 for a NOS cable, ouch.
Having never seen an automatic MM/D50 in person I can't say 100% if it uses a cable too but many early Mitsubishi's did. My cable was attached a couple inches below where the throttle cable was, with a clevis type attachment.

[Can1991Ram]

I'll have a look. . The slip sounds like an out of adjustment cable

[Can1991Ram]

The more I read about the A500 the more I find that the control module only runs the overdrive and lockup functions as the A500 was basically a 727 with an overdrive on the back.
The guy I bought it from said the overdrive quit while he was hauling scrap....
Now the overdrive and lockup doesnt work.

[Can1991Ram]

When I looked this morning I see that the kickdown is still cable driven. Any idea what the proper adjustment for the kickdown is?

[DroppedMitsu]

Just a little slack in the cable as pennyman said. With throttle plate fully closed btw.

[Can1991Ram]

I seem to have that... I bought a filter and will change the fluid. I sure hope this tranny isn't wrecked already

[Can1991Ram]

I fixed the kickdown...it was out a ton!!!

Now I can't find the the overdrive relay.

Is it in the same spot as the steering and seat belt relay is? There are 2 open spots but I have no idea where the round relay for the overdrive relay should be.

Can someone take a pic under their dash of the location if the relay?

[Can1991Ram]

Thank you thank you thank you to whoever uploaded the Haynes book to this site. I found the spot...he took it out!!!
Off to the parts store tomorrow

[Can1991Ram]

Well.... the relay is not the issue so I started digging a little deeper.

I found the temperature control switch tab is broken off. There was a connector right beside it so I assume that should connect to it. When I probed the connector it had 12 volts.

I thought the job of the TCS was to provide ground for the relay?

https://www.dropbox.com/sc/0b1zmaqigeo8uya/AADUeiacj_94Sh0bJOLaDQ-ua

[pennyman1]

it is - ground the wire and the O/D will work at all times -the temp switch is to keep the tranny from going into O/D when the motor is cold.

[Can1991Ram]

Ok...It just seems wrong to ground a 12volt line

[Can1991Ram]

I grounded the wire and it made no difference. .still no overdrive

[Can1991Ram]

I grounded the wire and it made no difference. .still no overdrive

[Can1991Ram]

I grounded the wire and it made no difference. .still no overdrive

Where should I go next? the solenoid in the pan?

[DroppedMitsu]

Should have a troubleshooting section in the manuals downloaded to the site correct?

[Can1991Ram]

I checked the TPS and it's in spec, I checked to see if there is 12 volts provided to the Overdrive solenoid, I don't see a speed sensor on the rear axle housing so that can't be the issue. I have the temperature sensor grounded, that didn't help

[Can1991Ram]

Its has a brand new overdrive relay too

[Can1991Ram]

Well I put a switch in and the overdrive works now.

[pennyman1]

is that with or without the lead for the temp sensor grounded?

[Can1991Ram]

I grounded the temp sensor lead and tapped into the grounds for the lockup and OD.

Right now as soon as I hit the switch it immediately locks the converter and engages the OD.

I'll snap a pic tomorrow

[Can1991Ram]

Not that it makes any difference since I switch on the Overdrive with a switch.. but here is the temperature switch for my truck that just came in today..
14472

[monkeyboylegend]

I grounded the temp sensor lead and tapped into the grounds for the lockup and OD.

Right now as soon as I hit the switch it immediately locks the converter and engages the OD.

I'll snap a pic tomorrow
hey can1991ram did the switch end up working for a good long while? i recently just purchased a 1994 mighty max and have the same issue. im going to try grounding the temp sensor like others suggested but just incase i was wondering if you could snap a pic of what wires you put a switch onto? thank you

[monkeyboylegend]

I grounded the temp sensor lead and tapped into the grounds for the lockup and OD.

Right now as soon as I hit the switch it immediately locks the converter and engages the OD.

I'll snap a pic tomorrow
hey can1991ram did the switch end up working for a good long while? i recently just purchased a 1994 mighty max and have the same issue. im going to try grounding the temp sensor like others suggested but just incase i was wondering if you could snap a pic of what wires you put a switch onto? thank you