Heater isn't getting hot

[Anonymous]

Well I won't be of any help here but I have the same darn problem as you guys and have a 62 Ranchero. All of my cables work properly and are adjusted properly.
I did find that my carb heater block was totally plugged off but I knew that was a problem because my hoses weren't getting hot. Unplugged it and still not getting warm enough to heat my cab. If you look at the design of this heater system it's really not that great as there really isn't much differential pressure created across the core to get a good flow of coolant through it. I wonder if it's bad design, how many others are having our problems?

 

[AZstang66]

I'm not too sure of the design similarities between yours and a 1966 Mustang, but when I had a heater it would often get so hot that I would have to shut it off.
And yes, it does get cold (sometimes) in Arizona...

 

[Anonymous]

Well we know the water is getting hot. Hoses are hot and no blockage. As hot as the hoses are getting, the water should put off plenty of heat from the core. Only thing I can think of is maybe the water is moving through the core too fast? Maybe slow it down some to give it a chance to give off more heat? I know both my hoses are hot so it should be giving off enough heat already, but just a thought.

Sean

 

[Anonymous]

In my 65 mustang, my heat comes and goes but I am outta town on business so I will have to check my hoses for blockage when I get back.

Darrell

 

[Marine05]

Try reversing ur heater hoses.

 

[Lazy JW]

Well we know the water is getting hot. Hoses are hot and no blockage. As hot as the hoses are getting, the water should put off plenty of heat from the core. Only thing I can think of is maybe the water is moving through the core too fast? Maybe slow it down some to give it a chance to give off more heat? I know both my hoses are hot so it should be giving off enough heat already, but just a thought.

Sean

I'm not familiar with your particular vehicle, but most older cars used vents to mix the incoming air, thereby regulating the heat by varying the amount of cold air mixing with the hot air.

These vents/flappers/doors whatever you want to call them have some type of rubber or foam seal which deteriorates with time. To get maximum heat, the COLD AIR VENT MUST BE COMPLETELY SEALED SHUT.

It is difficult to imagine a 46 year old car having heater vent seals that work properly.
Joe

 

[jamyers]

Try reversing ur heater hoses.

I just got through doing this, and it worked. I have no idea why, since it shouldn't matter which way the coolant goes through the heater core. But I can't argue with success, now can I?

The coolant is now going into the top of the heater core, and out the bottom.

My brain still says it shouldn't matter...