Vacuum Block on firewall
Thread Starter
|
New User
Joined: Aug 2012
Posts: 24
Likes: 0
Vacuum Block on firewall
I have a 95 F250 460 with a C-6. Have had no problems until the other day when the starter went out. Had it towed home and now my truck wont shift out of first gear. Noticed that I had a vacuum sound and found there to be a block on the firewall on the passenger side that had three ports for vacuum. One line is missing and that is where the vacuum leak is. There are no missing lines that I can find anywhere. The 2 lines that are hooked up are one from the manifold tee that feeds the block and the other line runs to my transmission. Any help would be great. Thanks!
Senior User
Joined: Sep 2010
Posts: 385
Likes: 0
From: Oregon
Not exactly sure but mine has a 1/4"? 5/16th?
hose that connects to some tube behind the engine.
I took some stainless braided water line from a sink and taped a thin hazlenut branch to the line and shoved it down behind the engine to connect to the vacuum transmission shift suckulater valve pipe and then just cut the tree twig off.
NO other way to get a line on that thing but it shifts now and no vacuum leak.
The vac eliminates the need for hose clamps.
I hope that has SOMEthing to do with what you were asking.
Major full intake maniold vacuum is what shifts the transmixer and prone to leakage.
hose that connects to some tube behind the engine.
I took some stainless braided water line from a sink and taped a thin hazlenut branch to the line and shoved it down behind the engine to connect to the vacuum transmission shift suckulater valve pipe and then just cut the tree twig off.
NO other way to get a line on that thing but it shifts now and no vacuum leak.
The vac eliminates the need for hose clamps.
I hope that has SOMEthing to do with what you were asking.
Major full intake maniold vacuum is what shifts the transmixer and prone to leakage.
Thread Starter
|
New User
Joined: Aug 2012
Posts: 24
Likes: 0
I got caught up with a bunch of things so sorry for late post. I had solved it. There was a vacuum cap on the last nipple that came off. I never found the cap but once I put a new one on the trans has shifted fine and was able to tow my 10k travel trailer. Thanks for the help.
Thread
Thread Starter
Forum
Replies
Last Post
DDDDDMorgan
Clutch, Transmission, Differential, Axle & Transfer Case
3
Sep 20, 2016 02:17 PM
e30rik
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
15
Aug 27, 2016 06:30 PM
78 & 87 Super Cab
1987 - 1996 F150 & Larger F-Series Trucks
3
Nov 7, 2013 12:44 PM
rpfarm25
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
1
Oct 31, 2009 12:08 AM
