overdrive solenoid question

[tclark]

I'm trying to troubleshoot no overdrive in a truck I recently bought. I checked with a test light at the plug going into the overdrive solenoid and verified there is power to it. Actually there was power to both large and small wires . I tapped into the small wire and ran it into cab with a toggle switch then to ground. Overdrive still doesn't work. So this indicates the solenoid is bad or overdrive unit is bad? Is there a way to test beyond this or is the next step to replace solenoid to find out what problem is? Where is a good place to get a solenoid and is it a simple install? Thank you

 

[DVolk]

Did you check your throttel sensor on the pump ?, it might be bad ?, im not shure if places like Orielys can test them or not ?

 

[tclark]

Did you check your throttel sensor on the pump ?, it might be bad ?, im not shure if places like Orielys can test them or not ?

Yes, I worked back to the solenoid and grounded the small wire with a toggle switch in the cab and still no overdrive. I had another 93' which I did the same thing with and drove it like that for many years. I don't know anything about the solenoid replacement though. I'm watching a Utube video now showing how to take the valve body out I guess that needs to be done. It looks straightforward but I'm not sure if I want to mess with it maybe I'll give it a try though.

 

[tclark]

When I checked for power going into the overdrive solenoid I had it on both wires going into the plug is this normal??? So I found a solenoid ( http://www.ebay.com/itm/DODGE-A518-46RH-47RH-TRANSMISSION-OVERDRIVE-SOLENOID-/350266105627 )do you really have to drop the valve body to replace this? I've driven and messed around with these trucks for 20+ years but this problem has got the better of me.