+- Rawze.com: Rawze's ISX Technical Discussion and more (http://rawze.com/forums)
+-- Forum: Big Truck Technical Discussion... (/forumdisplay.php?fid=1)
+--- Forum: Ask Your question... (/forumdisplay.php?fid=45)
+--- Thread: Air beak stop/tail switch.. No air after cab swap (/showthread.php?tid=10612)
Air beak stop/tail switch.. No air after cab swap - rtayl328 - 05-25-2026
Hello All,
2007 Pete 386 with C-15 Twin
I have been down for a while.. (Short Brief)
April 14th I was driving down 331 near Opp, Al when a tree that was cut but left entangled in other tree's, by someone cutting tree's, fell and went through my cab..
It destroyed the hood and cab.
Left Opp, Al 36 hours later and went to Dallas to pick up cab and hood..
I did a cab swap that was wired for a Cummins to my truck a wired for a Cat.. Harnesses and all,, done, good got it.!. non-stop by myself sun up to sundown 7 days a week.. As a O/O I was already wore out..
Anyhow,
So, here is the problem I am having.. (I'm so tired I can't see the solution clearly)
I have no break lights.. I've changed switches, relays, fuses and so on... After two days of carrying on, I finally pulled the dang air line and pushed the pedal to check for air... (SMH) I know, yes, 2 days.
No air to the switch, when I press the pedal.. I tore the seat out and floor out and pulled valve to look where this line may connect to. and. nothing.. I have climb front to back to front to sides and I can't figure it out.. What am I missing.. I plugged everything back into the manifold the way it was disconnected (so I thought).. where does the air to the 1/4 airline on a stop/tail switch come from. What feeds the pass through on the manifold block? Is there a built in tee in the manifold..
I apologize if this seems like a silly question.. But, I am defeated and truly discouraged like no one can possibly imagine..
RE: Air beak stop/tail switch.. No air after cab swap - Rawze - 05-25-2026
(05-25-2026 )rtayl328 Wrote: ... What feeds the pass through on the manifold block? Is there a built in tee in the manifold..
...
The air manifold block running into . out from the cab firewall is not straight through. There are cross-connections built within it that are hidden.
It also sounds like you got a cab that was newer (or older) and had a different manifold with slightly different cross-channels inside it. - Just a guess.
It is likely that you need the diagram for that year/make model truck, and the diagram for the original one. - The diagrams will also each show the wiring and connections differences between the 2 engine options if they were available in that year model.
============
(opinion, the beer is flowin' at the moment)...
- Personally, I would have replaced the whole thing with a newer model truck with a red engine in it if it was that badly damaged. - There is no reason for people to keep torturing themselves by hanging onto the past, pushing freight down the roads with those old old yellow motors these days. Those old engines and square nose trucks are far less fuel efficient and are quite a bit less profitable long term, than anything build in the last 15 years or so ... especially when comparing them to red engines that are properly cared for.
This is only my own opinion, as I am here to make the highest long term profit margins possible by driving operating costs down as much as possible, and not trying to do so by hang onto the past, as it is nothing but yesterdays stale bread at this point.
RE: Air beak stop/tail switch.. No air after cab swap - rtayl328 - 05-25-2026
Thank you Rawze