E150 Air conditioning controls

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Mar 23, 2014 | 03:37 PM

GA_Boy

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E150 Air conditioning controls

Hi, I have a E150 RV, 302 Cu. In. and I recently installed a new coil. I had to remove the Dog House to do this and some way I bumped some vacuum lines that I think was part of the A/C. I replaced it but there seemed to be 2-3 places it would plug in. I imagine that I guessed wrong. I have a Haynes manual that covers many years and it was not any help. Does anyone have a picture that describes where the small line go?
When I turn the A/C on I can tell that it is producing cold air because I can feel it under the dash. It's just not coming out of the vents.
Thanks for any help.
Marvin

Mar 23, 2014 | 07:07 PM

tabijan

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From: Eastern TN

What year?

Sixto
93 E150 Chateau 5.8 187K miles

Mar 23, 2014 | 08:44 PM

GA_Boy

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Quote:

Originally Posted by tabijan

What year?

Sixto
93 E150 Chateau 5.8 187K miles

Sorry about that-----it is a 1988, E150. The vac (I think they are Vacuum) lines are behind the Coil on the left side. Can't see them from the front. Not sure about underneath but I removed the dog house covet to get to the coil.
Marvin

Mar 24, 2014 | 07:19 PM

jimandnena

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Quote:

Originally Posted by GA_Boy

Hey Marvin,
I have an '88 Club Wagon. I'll probably be pulling the doghouse off tomorrow, I can shoot photos then. Can you give me an idea of where the vacuum lines should be? The vacuum lines I'm thinking of near the coil are all smog related (I think?).
https://picasaweb.google.com/jimandnena4/DoghouseOff
jim

Mar 24, 2014 | 08:07 PM

GA_Boy

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Quote:

Originally Posted by jimandnena

Thanks for the reply. The line that I knocked off was from a block/group of maybe 5-8 very small tubes (1/8" OD) and it seems that they were color coded. I have a doctor appointment tomorrow but I'll pull my dog house cover off Wednesday. Pictures will certainly help as my Haynes doesn't show them.
Marvin

Mar 25, 2014 | 09:51 AM

jimandnena

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Quote:

Originally Posted by GA_Boy

I added photos to the album linked above, Marvin. I didn't see anything that looked AC related but I had a thought about the vacuum lines in the last photo. Those lines are connected to the heater/AC control and operate the vent system. If one of those lines got pinched by the doghouse it could affect the AC operation you are having?

I recently dropped the dash to fix a no defroster/floor heat problem, panel air only and had to track the vacuum connections
https://picasaweb.google.com/jimandn...HeaterAirflow#

The airflow defaults to floor/defroster so if the vacuum line to the actuator is pinched, it won't switch to the panel (AC) vents. Does the airflow switch from floor to defroster vents? That is a different actuator but if it changes you know you have sufficient vacuum available.

jim