Removing A/C evaporator - question???

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Teeth & Tires

Teeth & Tires

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I'm pulling the evaporator out of the HVAC box.
I have complete access to the evaporator as the box is out of the car and all that but the temperature probe wire is holding me up from pulling the evaporator out completely.

This wire is fixed at one end to the evaporator core and, at the other end, to an electric control switch outside the HVAC box. The wire passes thru a hold in the HVAC box so.......

........how do I get the evaporator out?

69 Barracuda, btw.
 
It's not a wire, it's a tube. It should be inserted into the evap, and may be bent in such a manner that it won't slide out or maybe corroded and stuck

Have you read the shop manual?

69 Dart:

http://www.forabodiesonly.com/mopar/showthread.php?t=244981

Here:

[ame="http://www.abodyjoe.com/pictures/Misc.%20car%20info/69%20dodge%20service%20manual.pdf"]http://www.abodyjoe.com/pictures/Misc.%20car%20info/69%20dodge%20service%20manual.pdf[/ame]

(Go thank AbodyJoe)

All they say on page 24-45 is "carefully remove capillary sensing tube"

Page 24-48 shows figure about re-installing the probe

1973%20Valiant%20Dart%20AC%20HTR%20Evap%20Temp%20Cont%20SW.JPG
 

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Yep, that's where I'm at.



Okay...tube offered a fair amount of resistance so I stopped pulling. I'll re-look at it differently, knowing how to extract it. Pushing it back in ought to be a treat.

Thanks!
 
One other possibility is to neatly slice the housing down to the hole so you can slide the tube out of the housing and leave it in the evap
 
I had to tug on mine pretty good to get it out. There was some corrosion on it that was holding it up. I used some HVAC coil cleaner on mine prior to removal. It seemed to help loosen it from the corrosion a bit.
 
I got it out, gripping it carefully with a wide plier and applying some testosterone. Looks just like what toplscuda posted above. I plan to use a little lube to ease reinstallation.
 
You might want to test it before you reinstall. At room temp, you should be able to move the adjustment to close the switch, and may not be able to open it

After sitting in the 'fridge for a bit, the switch should open, and if cold enough, the adjustment won't close the switch.

As I said, that's a tube. It's pressurized with something, maybe even freon. If the tube corrodes or gets kinked, etc, and leaks, it's NFG
 
Did you buy a new evap core? I'm considering replacing mine before I put my box back in the car but the cheapest I've found was $200 +
 
No, I plan to use the old one. Yeah, they are uber pricey.

I suspect an A/C shop can pressure-test it easy enough.
 
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