77 Maverick Temperatures

So according to the temperature gauge (which I have yet to verify it's accuracy), in the winter time right now (about 30-50 outside, depending on when), I'm running about 205 degrees. My heat (aftermarket AC, but also came with factory AC) also isn't the hottest thing in the world, more "warm" if that makes sense.

Do yall think the two are connected? Do you think it's possible I have a blockage in my engine cooling system somewhere? Is it possible that a gasket is in backwards and blocking a cooling port? If that gauge is right it's like more heat is staying in the engine and less is available to the heater core.

Thanks,

77 Maverick 2 door with 302, mostly stock except 268H cam.

 

you probably have an air pocket or your heater core needs flushed out. I always unhooked the hoses and take my water hose and run the water backwards through the heater core, you'll be surprised what come out.

 

When I get time I'll see about "burping" the system of any air pockets and flushing the heater core. As long as I'm draining the fluid out I'll check the thermostat and replace that if necessary. Before I do any of that I'd like to check the accuracy of water temperature gauge

 

most likely a blocked heater core, is all. Flushing with a good rust remover will also help.

 

Sounds like a good first step. Thanks!

 

I vote for a blocked heater core.

 

Also, look at that vacuum actuated valve that restricts the flow to the heater. Those can be trouble.

 

heater control valve

 

lol.. I forgot these cars even had those damned things. I'd start there first before even messing with back flushing.

 

Does removing it have any side-effects? I imagine Ford put it there for a reason right?

 

Removing the valve will not have any adverse effects .. it will just let coolant flow thru the core w/o restrictions. With the valve removed; if u don't get a big improvement in heat distribution, u most likely have an issue w/ the heat core.

 

I read somewhere else on this forum previously that in a hot climate, the AC might not cool as well with the water flowing through the heating core all the time, has anyone experienced that?

 

If you are going to use the AC, you will need the valve.

 

Craig is right - u need the valve to stop the hot coolant frm entering the heat/ac box. Some folks install a plumbers inline valve and shut the water off during warm wx times when not using heat. Drawback w/ that - U have to go under the hood to open valve to get heat. I wud go w/ the OE valve if possible and only use the latter as a last resort.

 

Thanks for the info guys, gives me something to go on here