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  #1  
Old 01-04-2021, 12:47 PM
Harrinad Harrinad is offline
232 I6
 
Join Date: Jan 22, 2019
Location: Indiana
Posts: 62
Grand Wagoneer Disaster

I'm trying to put back together a Grand Wagoneer and it's a mess. I'm expecting to post several dumb questions but let's get started here. I'm putting the dash in and there's a canister on the passengers side that looks like it controls something in the heater box. It has a port on it that looks like a vacuum line would connect to it, where does this line come from?

https://flic.kr/p/2kp7FcJ

Last edited by Harrinad : 01-04-2021 at 01:27 PM.
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Old 01-04-2021, 03:37 PM
MysticRob MysticRob is offline
327 Rambler
 
Join Date: Nov 26, 2019
Location: Boise, ID
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This one here? The one I have under my dash is slightly different, but I think the other end goes to the hvac controls. My dash is back together now and I can't trace it. I have an 88, what year is yours?
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1988 Jeep Grand Wagoneer / Baltic Blue & Tan
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  #3  
Old 01-04-2021, 03:50 PM
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SOLSAKS SOLSAKS is offline
304 AMC
 
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Location: Benson. NC
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would the TSM show this ?
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1976 J-10 HONCHO Fleetside
1982 J-10 Fleetside
1988 grand wagoneer
2004 RUBICON jeep
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  #4  
Old 01-04-2021, 03:55 PM
Harrinad Harrinad is offline
232 I6
 
Join Date: Jan 22, 2019
Location: Indiana
Posts: 62
Mine averages to about an 88. It is a build from an 86 and a 90 but I think that piece was from the 86. I did an engine swap a long time ago and never put it back together. Since then I have forgotten a bunch and some of the original bits aren
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Old 01-04-2021, 07:00 PM
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Cliff Cliff is offline
350 Buick
 
Join Date: Mar 30, 2002
Location: Upper East Tennessee
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Just take things slow and post questions or issues here. It's a great forum and lots of help is available - real good folks here. It looks like a disaster now but you'll make progress.
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Old 01-04-2021, 07:04 PM
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letank letank is offline
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Join Date: Jun 03, 2002
Location: San Francisco
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it is the vacuum actuator for the defrost, on the passenger side, the one on the driver's side is the heater...


Good luck with the project
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Michel
74 wag, 349Kmiles on original ticker/trany, except for the rust. Will it make it to the next get together without a rebuilt? Status: needs a new body.
85 Gwag, 226 Kmiles. $250 FSJ test lab since 02, that refuses to give up but still leaks.

See Ouray 2013, Engine bits and Fuel and brake lines, and Body work
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  #7  
Old 01-04-2021, 07:14 PM
Harrinad Harrinad is offline
232 I6
 
Join Date: Jan 22, 2019
Location: Indiana
Posts: 62
Quote:
Originally Posted by letank
it is the vacuum actuator for the defrost, on the passenger side, the one on the drivers side is the heater...
Where can I find the vacuum lines? Do they come straight from the ball on the firewall or from somewhere else? Can I put a T in the vacuum line and connect them to each other?
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Old 01-05-2021, 08:56 AM
rocklaurence rocklaurence is offline
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Vacuum will originate at the Ball on the engine side fire wall and then travel to [supply] the control switch. I believe there is a multi-hose connector that plugs into the controller. You'll need that connector
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Old 01-06-2021, 07:44 PM
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letank letank is offline
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Quote:
Originally Posted by Harrinad
Where can I find the vacuum lines? Do they come straight from the ball on the firewall or from somewhere else? Can I put a T in the vacuum line and connect them to each other?

Having a latter model 86 and newer is a tad more involved. The fancy HVAC controller has a special vacuum multiport plug in the rear of the HVAC.

Yes you can plug the vacuum motor to the outlet of the vacuum ball, the vent will activated all the time. Do the same for the driver's side vacuum motor to activate the floor heater vent, connect both vacuum motor to a T and one hose to the vacuum ball is the short and fast way.
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Michel
74 wag, 349Kmiles on original ticker/trany, except for the rust. Will it make it to the next get together without a rebuilt? Status: needs a new body.
85 Gwag, 226 Kmiles. $250 FSJ test lab since 02, that refuses to give up but still leaks.

See Ouray 2013, Engine bits and Fuel and brake lines, and Body work
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