70fury383

Alright I'm new here and I've got a 1970 Fury III with a 383 2 bbl. I bought it 3 years ago when I was fifteen. It's been driven daily for almost a year now and this winter I noticed a slight issue. Here in Pennsylvania winter gets a little chilly, so it's nice to have a heater...mine doesn't work. I've replaced the thermo, and the heater control valve. The old valve broke over the summer and I simply bipassed it with a couple of copper tubes. Then when the thermo went I decided to buy a new control valve, and ever since then my heat hasnt been working. I know the heater core is fine because it would blow hot air when I didn't have the valve on it. It seems like the coolant isn't getting past the HCV because the rubber tubing going into my heater isn't warm like the tubing going into the valve. Should I just take off the control valve and use the trusty copper pipes again, or is there something I'm not seeing? Any advice is appreciated!!

Silverick

Welcome to the forum!
Have you tried bleeding any air that may be trapped in the heater loop?
Are you sure that the heater valve is opening?

78D200

Welcome!

X2 on there being air in the system.

rickyr

welcome to the forum

Archer

70 -

Welcome aboard.

Sure air in the system could be a problem, but check the obvious first. Is the valve really opening? Remove the valve and manually check it. Then make sure the cable is FULLY opening it via the dash board lever. Remember, it can stick from both ends.

Archer

70fury383

Thanks everybody!..and alright I'll have to try bleeding out the air and I'll go from there

70fury383

And archer..how do I check if the valve is really opening?

Archer

70 -

Remove it and visually inspect the inside while opening and closing the actuator. You could just set it to off and turn on the engine, then turn it on and see if hot water gushes out, but I think the other way is a little neater ...

Ditto on the cable. have someone move the dash switch and make sure it moves the lever on the valve.

Hate to ask this, but you did anchor the cable to the valve before trying to use it?

Problem is that we can't see you from here, and you know what assuming does...

Archer

70fury383

I dont mean to question your knowledge, but are you thinking of the same part? My HCV only has one vacuum line exiting the top of the valve..no cables

Archer

70 -

Actually, you're probably right, haven't had a Mopar with a heater in some time. I believe there were both types, and the only ones I recall were manual (cable).

If it's vacuum activated, the same thing holds. You have to make sure it's opening. I believe that you have to apply a vacuum/suction to the vac port on the valve. You may also want to confirm the other end is giving vacuum pressure.

Archer

70fury383

Ohh ok..I'll do that tomorrow and get back to you..it's dark and cold now

MReeves

Welcome to the forum... Glad to have you on board... While on here be sure to check out the Mopar of the Month contest.....

bremereric

Yeah what Mack said times 2. Welcome and don't forget we like pics. Need picture help here it is.

https://moparforums.com/forums/f62/p...pictures-2128/

70fury383

I finally got a couple up! I've been doing this al off my phone because i haven't had the time to get onto my desktop.

70fury383

Archer you were correct about the vacuum line...I did some rigging and used a splitter so I could hook up a line that I know has good vacuum..it's nice to have heat again

theFUSELAGE KING

Welcome, sweet looking Fury.
I had 71 440 Sport Fury that had heat problems a few years ago....never gave it much thought tho.....2 busy burying the accelerator pedal at the slightest provocation and all that. oh,well..

70fury383

Thanks!! I was checking your Newport earlier, that's one of my favorite cars. And yea..if anybody so much as looks at me at a red light I take off..unless of course it's a cop