|
Author
|
Topic: Automatic trans shifting weirdness
|
GeerWerkz
Journeyman Posts: 36
From: Snohomish, WA, USA
Registered: Mar 2003
|
posted 04-24-2003 03:53 PM
   
My 67 has a 302 2bbl and a C4(I think) of unknown vintage, ever since I got it it has shifted really early. It goes into second almost as soon as I start moving and shifts into drive at about 10mph. So the other morning I disconnect the vaccuum modulator(??) and plugged the line to the manifold and lo and behold the Transmisson shifted right on the marks indicated on the speedo! That got me to thinkin  Is the vaccuum line supposed to connect to the manifold or somewhere on the carb?Thanks in advanve, you people are the best!
Robert
IP: Logged |
markboss
Journeyman Posts: 27
From: orlando,fl,usa
Registered: Apr 2003
|
posted 04-24-2003 04:18 PM
The transmission modulator, should have an adjustment screw in the middle of the vacuum connection. Tighten the screw for a firmer-later shift. A longer rod, in front of the modulator may be necessary... The vacuum line goes to manifold vacuum...a constant vacuum source.
IP: Logged |
Dave Gibson
Moderator Posts: 7624
From: Norfolk, Virginia, USA M&M#166 MCA#47921
Registered: Aug 99
|
posted 04-24-2003 10:09 PM
Robert,
Replace your vaccum modulator. It's easy enough to do and should be good to go. Also, the vaccum line should connect to the manifold or to the carb spacer. You should have about 9+ on your vaccum pressure.Dave & Terri ------------------
'65 Mustang Fastback
'02 Explorer XLT
I don't suffer from insanity. I enjoy every minute of it!
We have enough youth, how about a fountain of smart?
Common sense is not so common anymore.
IP: Logged |
Mustangsandmore Forums
UBBFriend: Email This Page to Someone! 
