bad Vacuum modulator i hope!

bbmonte396

Amateur Racer
Jul 11, 2008
200
0
0
Buffalo NY
I had my car out for test drive and i had to boot the gas 3/4 and speed up to get it to shift from 1-2. what size line do you run? right now I have 3/16" on there now. is that so small? and i hope it is not a bad trans. and just a bad Vacuum modulator i hope!

Edit: this is on a TH350

here is a video may help

http://www.youtube.com/watch?v=ufQk277Ql28&feature=channel_page
 

pl235c

Amateur Racer
Apr 16, 2007
244
0
0
wichita kansas
sometimes when the modulator goes south it will suck transmission fluid into the motor causing it to smoke, check the transmission fluid make sure its full, and pink, otherwise it may be the governor.
 

bbmonte396

Amateur Racer
Jul 11, 2008
200
0
0
Buffalo NY
well i just put the new vac modulator on there was no fluid in the vac line do i am guessing my trans is shot.
 

bbmonte396

Amateur Racer
Jul 11, 2008
200
0
0
Buffalo NY
1. The fluid is new level is fine
2. Thm350
3. The kick down is not hooked up as per every one telling me I don’t need it for now.

I got the trans from a friend that "claimed" it works fine when poled. I had the pan off and it looked vary clean inside and had no burnt smell to it. Then I stored in my shed for 1 year covered up in a bag. when i installed it i put 1 qt of ATF in the converter. and filled it with 9-10 more Qts
 

holtjohn

Frequent Racer
Oct 15, 2008
516
0
0
drive around for a little while a let it warm up all the way and see if the issue goes away.
 

bbmonte396

Amateur Racer
Jul 11, 2008
200
0
0
Buffalo NY
holtjohn said:
drive around for a little while a let it warm up all the way and see if the issue goes away.

think there may be some crap in there or some hting needs to get unstuck? hmm will i give it a go today i have the new vac modulator in and ill hope for the bast
 

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