Weak blower motor
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Tuned
Joined: Jul 2004
Posts: 371
Likes: 16
From: Upstate SC
Weak blower motor
My blower motor in my 84 is terribly weak. Not sure if any of these trucks had real strong blowers. Is there a way to make it stronger. Give it more current? Maybe install one from later model truck?
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Tuned
Joined: Jul 2004
Posts: 371
Likes: 16
From: Upstate SC
Well, it puts out air. Doesn't sound like anything is holding it back. And all the speeds work. It just doesn't put out the amount of air as a newer model vehicle. I don't have another truck of similar year to compare it to. I'm mostly concerned about the A/C. I'm thinking if I get a larger volumn of air to move through the cab it would "feel" better, know what I mean? It's like on my dad's late model Dodge, I think you could fill balloons with the amount of air that fan moves.
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Joined: Jan 2001
Posts: 56,997
Likes: 2,744
From: Virginia
My 80 was like that, and by digging all the pencils and and junk out beneath the windshield, it helped the defrost a lot. Then when I was doing something else, I took the A/C box off in the engine compartment, and found more junk in the duct, and I cleaned the A/C evaporator core fins, and after that, the heater would run me out of the truck.
So it's safe to say, there is not a design problem with the airflow or the heat in these trucks.
So it's safe to say, there is not a design problem with the airflow or the heat in these trucks.
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Fleet Mechanic
Joined: Nov 2007
Posts: 1,770
Likes: 29
From: Northeast Nebraska
ya, i had terrible air flow in my 81, so after disassembly i found i had an enormous rats nest in my a/c evaporator and after cleaning all that crap out, i have great flow! now if i could just get the right thermostat in there, i could maybe have a warm drive for a change...
Fleet Mechanic
Joined: Nov 2007
Posts: 1,770
Likes: 29
From: Northeast Nebraska
i looked everything over on my truck, but in the summer time, when i use it to pull w/, it would have a little problem w/ overheating. put me in a 160 degree and problem solved, ran right at operating temp. now that it's cold outside, i can't get the stinker to warm up for nothing or nobody! everything is in working order, it's just that the engine is pretty tired. i plan on running stock 195 when i overhaul her and put in an actual guage w/ numbers on it so i can see exactly what it's doing...
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Tuned
Joined: Jul 2004
Posts: 371
Likes: 16
From: Upstate SC
I imagine it's time to clean out the ducts and blower housing anyway. Warming up in winter with a lower than stock thermostat can be a problem. I'm gonna put a bigger radiator in mine with the 195 thermostat, that way it will warm up fine, but have a larger capacity in summer time to be able handle the heat.
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