backnblack

Thats what I thought too but you can see I have two hoses and if I didn't know that one of them go's into the modulator I would sware that it was one hose and looped to the back of the car for no reason

This is why I thought there might be a "T".

fact is I have two vacuum line fron the front.
One that runs along the driver side floor pan and the other runs up in the tunnel where the TT is. I do think the one that runs up with the TT is the one that goes to the 6 way vacuum conector.

The million dollar question is what does the other go to ?

MainePorsche

The vac line that runs from the 'T' to the modulator is not a single line. It goes from rubber off the 'T', to a metal line in the region of the bellhouse, to a rubber line that makes its connection to the modulator. I can't think of what the '2nd' line is for. It could be you are looking at both pieces of this 'one' line. I recommend using a single durable line for this important vacuum. I used the # 3 line.

https://www.pegasusautoracing.com/pr...p?Product=3260

backnblack

Last night I put a vacuum gage on both lines and only one had vacuum I hooked that one up and the car still one had 1st and 2nd gear. I did top off the fluid but didn't seem to make any difference.

MainePorsche

How much vacuum was measured ? If I remember in my readings, there is a prescribed amount of vacuum the modulator must have. Also, does the modulator hold vacuum ? It must.

backnblack

I found out the problem was my kick down switch was stuck on. Just happen to be at the same time i was working on the trans.

Just thought I would post the solution.

Cheers
Matt

depami

It should have shifted to 3rd at about 90 or so.

Mine does......

davek9

you're welcome Matt, glad "you" found it