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Re: [GMCnet] yet another dash AC question [message #274493 is a reply to message #274480] Sat, 28 March 2015 10:36 Go to previous messageGo to previous message
KB is currently offline  KB   United States
Messages: 1262
Registered: September 2009
Karma:
Senior Member
Thanks Roy, although the Napa 207307 expansion valve is in the parts exchange list, I really wouldn't
recommend it for our application. The sensing tube is far too long so has to be looped around to fit,
and the end of it is a corkscrew instead of the flat thick bulb of the stock valve. Also, the tube comes
straight out the back of the valve instead of at an angle, so it runs right into the body of the thermostat
mounted inside the compartment. I don't know if the valve I got is defective, or if this particular part
is just not a good match for our application. The AC Delco 15-5481 expansion valve, on the other hand,
is a good physical match to stock so I'm hopeful it will work.
Better, because I only have 4 cans of refrigerant left and no time to order more...

Yes, the heat damper was shut, and I also closed the manual shut-off valve for the heater core in
case that was somehow interfering. The blower was set to high speed.

thanks,
Karen




 
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