vacuum lines
11-29-2008, 07:01 PM
#1
Advanced
Thread Starter
Join Date: Mar 2008
Location: Clovis NM
Posts: 90
Likes: 0
Received 0 Likes
on
0 Posts
vacuum lines
1986 944 2.5 engine.I got this car a few months back and haven't got it on the road yet, have a few problems. I guess the car always put out heat cause the heater core was by-passed. The 2 vacuum lines that come out of the firewall right next to the heater core lines have been cut off. They go to the solenoid for the heater valve on one end. Does any one know where the other ends go?Also the duct that's between the air flow sensor and the throttle body has a hose that is connect to it from the bottom, seems like i'm getting a lot of some type of liquid out of it. If the carbon tank is messed up will that cause it? The spark plugs only have 20 miles on them and there carbon up real bad, running rich. I just put in a new oxygen sensor so i hope that will fix that. Thanks for any help.
11-30-2008, 05:01 PM
#3
Advanced
Thread Starter
Join Date: Mar 2008
Location: Clovis NM
Posts: 90
Likes: 0
Received 0 Likes
on
0 Posts
Clark's garage doesn't show the vacuum lines that are used in the heater system, if it does i don't see them. Does the vacuum line that comes from the water shut off valve go too one of the lines that come out of the firewall by the heater core lines.
07-20-2009, 02:23 PM
#4
Advanced
Join Date: Jul 2009
Location: southern louisiana
Posts: 89
Likes: 0
Received 0 Likes
on
0 Posts
i emailed clarks garage on the same issue with the two vacuum lines, one goes thru battery box to canister and the other hooks up by heater hose in firewall, if those are the two in question they said they hookup with a t and the blue check valve and hook up to the big brake booster vacuum line, i am not sure where that is, on my power booster vacuum plug they had a nipple on it for a small vacuum line above the large vacuum line that goes to intake, trying to find out if thats where it goes
07-20-2009, 05:09 PM
#5
Instructor
Join Date: Mar 2009
Location: Middle Tennessee
Posts: 227
Likes: 0
Received 0 Likes
on
0 Posts
Look in the Heater Malfunctions section on Clarks. You're probably missing #4 Heating Valve and #8 Vacuum Unit For Heating Valve. I've seen posts where guys have by-passed those to prevent hot air in the HVAC unit.
Last edited by Han Solo; 02-28-2011 at 04:15 PM.