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#1 |
hart
Join Date: Jul 2004
Location: hell nebraska
Posts: 115
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Any Ideas on how to get the damn thing to work better. Its getting cold as hell. really just need to seed the fan up
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#2 |
Registered User
Join Date: Aug 2002
Location: USA
Posts: 443
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New fan I'd guess. Not much else to speed them up, if they are old. Have you checked to make sure your heater ducting isn't cracked? I looked at mine the other day, and there are gaping cracks and holes all over the place. Not to mention my heater core is shot.
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#3 |
20' Daredevil (Ret)
![]() Join Date: May 2003
Location: Jefferson State
Posts: 13,622
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Well, you don't give us a lot to go on. If the fan is bad, replace it. Some other possibilities...
Should have a good 190 or 195 t-stat. If A/C truck, maybe bad water valve (on pass. inner fender). Heater core may be plugged. Possible blockage or restriction anywhere in cooling system. Are your radiator and heater hoses hot to the touch when truck is fully warmed up?
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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#4 |
"Ochre Ogre"
Join Date: Apr 2000
Location: Springfield, MN
Posts: 3,558
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On the back of the heater controls is the fan speed switch. Many times that has gone bad and you can't select your high speed. If that is your problem you can easily replace it for under $10 I think. Or pull it apart and re-peen the copper rivets so they are secure. A little di-electric grease and it will be as good as new. If it is your motor then change it out. They used to be $70-80 at the parts store. About 5 years ago they started selling for $20. Both real cheap fixes.
If that doesn't fix it then you will need to dig deeper into the mechanical of the flapper doors and make sure they are set right. There is always a chance some mouse decided to eat all the vanes from the squirel cage fan and then finished off his meal with the rubber from the flapper door. Just a few other reasons you might not have enough heat.
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Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087 |
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#5 |
hart
Join Date: Jul 2004
Location: hell nebraska
Posts: 115
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every thing is fine I was just wondering if a fan out of a newer car would blow faster
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#6 |
hart
Join Date: Jul 2004
Location: hell nebraska
Posts: 115
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lot of it is im a pansy in the winter. I HATE THE COLD!!
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#7 |
Registered User
![]() Join Date: Sep 2003
Location: Waterloo, IA
Posts: 1,147
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Is it an A/C truck? I've been told that a blower motor for an A/C truck will blow faster than a non-A/C blower motor. I have not checked this out for myself tho..
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'72 Chevy K20 - 383/4sp/205 - SOLD after 41 years in the family Next project - K/5 Tahoe (71 Blazer on 99 Tahoe chassis) Build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=789958 |
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#8 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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The A/C blower is rated at more amps, but I have seen plenty of switches with burnt terminals on the stock set up.
Is your cab drafty? You'd be amazed at how much it makes a difference when you seal up the floor boards and rockers. I was complaining last winter of crappy heat, just to find out I had 200 degree air coming out the vents. |
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#9 |
hart
Join Date: Jul 2004
Location: hell nebraska
Posts: 115
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no A/c
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#10 |
Still drivin' a Rat Rod
Join Date: Sep 2004
Location: Monett Missouri
Posts: 4,925
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I took mine all apart a few days ago,and cleaned,lubed,and resealed everything,and it get so hot in the cab now you feel like you're in the tropics.You'd be surprised at all the crap that falls in there through the years.I found a glove,3 lighters,and a bunch of leaves
![]() The whole process took only a couple of hours start to finish,I reccommend it ![]()
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Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the *a$#* 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website |
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#11 |
hart
Join Date: Jul 2004
Location: hell nebraska
Posts: 115
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sounds like a plan to me
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