North American Turbocoupe Organization

Vacuum tree question
MartyPA Offline
Senior Member
On the vac tree ,one of the lines are marked with the letters AC and it is capped off.Is this supposed to be capped off or running somewhere to the AC (I'm assuming it has something to do with the air conditioner)
1988 TurboCoupe Automatic Black-Maroon Cloth interior--
No mods yet but someday when everything else is right.

Pete D Offline
Used vs capped off ports at the vacuum tree may very depending on options. Everyone I have ever seen has at least one or two capped. They all see the same vacuum and boost. If your car has the EATC system, then that one may be understandablely capped

NATO Member. it's not a vice, it's an obsession
"The nice thing about each new day is nobody ever used it before" Barnaby Jones
88 TC X 2, 86 SVO, mods list at
Pete Dunham


Red_LX Offline
That's weird, my vacuum tree says S/C on it.
Garrett Hunt
Moderator, 2.3L & Turbos Forum @
'87 Thunderbird Turbo Coupe
Windage tray, crank scraper, P&P head, RR, ARP head studs, P&P intakes, 60mm TB, Accel AFPR, Bob's log, T3, big FMIC, blow-thru VAM, Forge BOV, 3" exhaust, UPR shifter, gauges, etc.
My Turbo Coupe

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