Kickdown issues?

[Buickforlife]

Hello, I am having some trouble with my transmission in a 86 GN.

I just bought the car and was driving down the highway to get the car home. I pull up behind a truck and hit the gas to pass and the passing gear engages. I didn't realize that there was a stop up ahead before I passed the guy, otherwise I would not have passed him. So I am decelerating, and pull into town. I stopped and got a drink, and then I get back on the highway. I noticed something strange, it will not go into high gear. It shifted from 1st to 2nd but will not go into 3rd.

I tried to manually shift the gears, but still will not go into 3rd gear. I am thinking that it is a kickdown issue, since it will shift from 1st to 2nd.

The transmission is leaking a little bit of fluid, but I think that the previous owner overfilled the transmission.

Please help me figure this out. I am posting this hoping that somebody has run into this issue before.

It did perfect before, and I had never engaged the passing gear before I passed that truck

Thanks

Tyler Northcutt

 

[Buickforlife]

I just went and drove it again, and it did not shift into 2nd gear. I guess it is stuck in 1st. Could it be a shift selenoid?

Any help or ideas are appreciated, I know very little about transmissions.

 

[Buickforlife]

I just went and drove it again, and it did not shift into 2nd gear. I guess it is stuck in 1st. Could it be a shift selenoid?

Any help or ideas are appreciated, I know very little about transmissions.

when I let off of the gas it feels like it is going into neutral, and won't get any power until I roll to a stop.

 

[77 cruiser]

Do you have engine braking in manual LO?
Kinda sounds like the TV might be sticking, you could try unhooking the cable & with the engine running working the cable out to max & release 20 times or so.

 

[Buickforlife]

Do you have engine braking in manual LO?
Kinda sounds like the TV might be sticking, you could try unhooking the cable & with the engine running working the cable out to max & release 20 times or so.

No it does not. I will try messing with the TV cable.

 

[77 cruiser]

Does your shifter allow it to go all the way into LO?

 

[Buickforlife]

Does your shifter allow it to go all the way into LO?

It goes down to lo 2, but it will not go all the way into lo 1

 

[Buickforlife]

Well, we took the car to Jim Burek. He said that the transmission basically tore itself apart. The TV cable was stuck tho!

 

[bison]

Post pics of the torn up parts. How was i determined the TV was stuck? Sounds like overrun clutch was not engaging for some reason as well as other issues.

 

[Buickforlife]

Clutches were fine. The pump broke into pieces.

 

[bison]

Clutches were fine. The pump broke into pieces.

Probably from following reasons:
1. Stock iron pump rings were left in
2. Aftermarket pump rotor and slide not blueprinted.

My advise would be to use a new GM pump assembly and use the steel rings and .500 boost valve for 250psi line pressure.

 

[Buickforlife]

Here is the carnage.

Sorry for the bad pictures, the camera would not focus right.

 

[bison]

Was the dowel left out of the stator support? Looks like the bolts sheared off.

 

[77 cruiser]

Did something happen to the converter to start all this? TV was stuck do to all the crap floating around, it would be wise to take the VB apart & give it a good cleaning too.

 

[Buickforlife]

Was the dowel left out of the stator support? Looks like the bolts sheared off.

Not sure, the bolts were sheared off tho.

 

[Buickforlife]

Did something happen to the converter to start all this? TV was stuck do to all the crap floating around, it would be wise to take the VB apart & give it a good cleaning too.

I have no idea where it all started, we took the car to Jim Burek in El Paso, and he rebuilt it, he told my dad that he had never seen anything like it.