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#1 |
GMC SHORT FLEET F/S
Join Date: Jun 2000
Location: SOUTH WILLIAMSPORT PENNSYLVANNIA
Posts: 2,117
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Heater upgrades?
I have a standard non a/c truck that I would like to make the heater work a little better is there any tricks out there to do? Saw a switch at GMC Pauls for fan speed? Mine seems to have poor air flow? Is that normal? I am use to my 98 Ford work van that the heater kicks @$$ in!
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CHARLES WADE HEIN HVACR FOREMAN. LEWISBURG U.S.P. |
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#2 |
Registered User
Join Date: Sep 2000
Location: Winnipeg, Manitoba Canada
Posts: 248
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I bought my 71 from my brother in law. He said he put in a heater core from a ford. The largest one that would fit. Up here in the north, I can ride around in my truck in a t shirt when its -40 outside! It's great
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#3 |
GMC SHORT FLEET F/S
Join Date: Jun 2000
Location: SOUTH WILLIAMSPORT PENNSYLVANNIA
Posts: 2,117
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Wish I knew what core that was! I would also like to increase air flow! I should pull my motor and see what the blower wheel looks like?
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CHARLES WADE HEIN HVACR FOREMAN. LEWISBURG U.S.P. |
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#4 |
Registered User
Join Date: Apr 2000
Location: Chester County PA, USA
Posts: 1,228
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Yea, check the squirl cage on the fan. Mine was cracked and broken. It looked like the mice were chewing on it. Also i had leaves in the heater box that were obstructing the flow and cracked and broken defroster ducts. I got good heat now. It will make your feet sweat! Also put anti-seize on your wire going into the control cable so you dont break off those heater control leavers. They always break off.
Randy ![]() ![]()
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72 k/10 short wideside 72 k/5 Blazer 72 K/5 Blazer - obstacle course racer 72 custom/10 8' bed 70 K/5 Blazer 67 C-30 GMC Flat bed 86 GMC K2500 Plow Truck 85 GMC K3500 84 M1008 85 M1008 77 G30 Motor Home 72 Sears 12hp Tractor Glenmoore, Pennsylvania |
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#5 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Heres a good tip on this subject...the heater blower moter from an older caddy is a direct bolt in, and blows a little harder.
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#6 |
Registered User
Join Date: Mar 2002
Location: KC, NW Missouri
Posts: 144
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Yeah, typical in these trucks, check your heater box, might be loaded with trash. Similar story, mouse nest in mine, chewed up 3 or 4 fan blades. Replaced heater core (leaking), installed new fan, heater works great. Just don't want to 'test it' at 40 below zero!
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#7 |
Registered User
Join Date: Sep 2000
Location: Winnipeg, Manitoba Canada
Posts: 248
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I forgot to mention that I have a 205 degree thermostat. Boy does it make a difference!!
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