Vacuum line help
Thread Starter
Drifting
Joined: Dec 2012
Posts: 1,504
Likes: 73
From: Georgetown TX
Vacuum line help
Coming of the rear of the manifold is a vacuum line that goes thru a check valve over to the cruse control. Also off of this check valve is an another connection for a second vacuum line.
1989 auto transmission stock
When I pulled distributor I think I
might have disconnected a line to it. It’s been a while since I have worked on car, but it seems there was a vacuum line off of it going down the firewall behind the distributor to the AC under the dash. I am looking for vacuum line diagram, but haven’t found it yet. Anyone know anything about this vacuum line or check valve?
1989 auto transmission stock
When I pulled distributor I think I
might have disconnected a line to it. It’s been a while since I have worked on car, but it seems there was a vacuum line off of it going down the firewall behind the distributor to the AC under the dash. I am looking for vacuum line diagram, but haven’t found it yet. Anyone know anything about this vacuum line or check valve?
Team Owner
Joined: Sep 2003
Posts: 25,331
Likes: 2,722
Your assumption that it goes to the A/C in the car is likely correct and if you see the grommet where the ECM wires pass through the firewall grommet you should find a remnant of the vacuum line. Actual diagrams are scarce in the FSM but your thoughts regarding it are correct.
