No heat!

stanleyg69 · 08-31-2009, 01:32 PM

I have a 01 Chevy S10. Sometimes I have heat, sometimes not. If the heating core was bad, wouldn't the heat be off all the time?

bradrhale · 08-31-2009, 01:53 PM

first guess would be the blend door actuator. half the time when the go bad, they will work part of the time and not the other.
ultimate question is why are you looking for heat?? we have a ton of it down here if you want it.

leolkfrm · 08-31-2009, 05:38 PM

is the cooling system full? is the engine temp staying steady?

gmctrucks · 08-31-2009, 06:18 PM

I agree it sounds like a blend door isn't working correct. My brother had the same problem what he did is he placed the temp button on hot then he placed it back to cold and it fixed it for now.

chickenbone · 08-31-2009, 07:56 PM

Pain in the tail to change. It actually has a slider on it.you can do an ole redneck trick and stick a woodchip in it until you get a new one. Don't bother getting a used one. chances are its gonna be bad too.

I just take a chip an size it up. It actually still works, the pickup i did it to was about 5 years ago.

08-31-2009, 01:32 PM	#1
stanleyg69 Junior Member Join Date: Aug 2009 Posts: 1	No heat! I have a 01 Chevy S10. Sometimes I have heat, sometimes not. If the heating core was bad, wouldn't the heat be off all the time?

08-31-2009, 05:38 PM	#3
leolkfrm Senior Member Join Date: Mar 2008 Location: N.Y. Posts: 4,300	is the cooling system full? is the engine temp staying steady? __________________ 4 wheels move the body 2 wheels move the soul B.W.A.I

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08-31-2009, 01:53 PM	#2
bradrhale Senior Moderator Join Date: Apr 2006 Location: Texas Posts: 8,030	first guess would be the blend door actuator. half the time when the go bad, they will work part of the time and not the other. ultimate question is why are you looking for heat?? we have a ton of it down here if you want it.

08-31-2009, 06:18 PM	#4
gmctrucks Senior Member Join Date: Nov 2006 Location: Houston,Texas Posts: 4,035	I agree it sounds like a blend door isn't working correct. My brother had the same problem what he did is he placed the temp button on hot then he placed it back to cold and it fixed it for now.

08-31-2009, 07:56 PM	#5
chickenbone Senior Member Join Date: Mar 2009 Location: South Jersey Posts: 58	Pain in the tail to change. It actually has a slider on it.you can do an ole redneck trick and stick a woodchip in it until you get a new one. Don't bother getting a used one. chances are its gonna be bad too. I just take a chip an size it up. It actually still works, the pickup i did it to was about 5 years ago.