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#1 |
Registered User
Join Date: Mar 2017
Location: Jay
Posts: 8
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1993 chevy Silverado 4.3l xcab c1500 low heat problem
My heater barely works but my temp is 195° the heater hoses seem to be at about the same temperature. No over heat problem present. Coolant level is good. But the heater just won't blow hot. This has been a problem for years but lately the temperature outside has hit record lows. Please help. 😩😩😩😩😩😩😩😩
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#2 |
Senior Member
Join Date: May 2004
Location: Binghamton, NY
Posts: 2,942
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Re: 1993 chevy Silverado 4.3l xcab c1500 low heat problem
Heater core is prolly plugged. Pull lines off, blow air thru the return side of the core.
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#3 |
Registered User
Join Date: Mar 2017
Location: Jay
Posts: 8
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Did that. No change. Still only luke warm air coming out.
What mechanisms makes the cold air hot? If there is a door that controls this. Where is it on a 1993 chevy truck? |
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#4 |
Senior Member
Join Date: May 2004
Location: Binghamton, NY
Posts: 2,942
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Re: 1993 chevy Silverado 4.3l xcab c1500 low heat problem
There is a door in there that controls air flow. Not sure how it works or where it is. Guess I've been lucky with the pre-95s that the heat works lol.
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#5 |
Senior Member
![]() Join Date: Jun 2011
Location: Bradenton, Fla.
Posts: 943
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Re: 1993 chevy Silverado 4.3l xcab c1500 low heat problem
There is a door to allow heat to enter cab. located, sort of below / right side of radio. access by removing glove box..... to left of glove box opening....
Also ...maybe your heater core is covered with leaves & junk. The stuff that wiggles it's way down from the vent, at bottom of windshield. ( When I replaced my A/C, I found my heater core covered with crap ) ( My '88 Sierra )
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#6 |
Registered User
Join Date: Feb 2016
Location: Mason, OH
Posts: 81
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Re: 1993 chevy Silverado 4.3l xcab c1500 low heat problem
not really a lot to getting heat --- suggestions above will hopefully get you going. Its going to be either not enough hot coolant getting to/through the heater core (bad t-stat or clogged core or line), or the air going through the vents isn't going across the heater core due to a blend door issue, or as suggested, maybe even leaves!
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#7 | |
Registered User
Join Date: Nov 2016
Location: Tulsa
Posts: 233
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Re: 1993 chevy Silverado 4.3l xcab c1500 low heat problem
Quote:
like someone mentioned heater core could be plugged up, or a hose but that in return would over heat your truck as well. |
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#8 |
Registered User
Join Date: Nov 2016
Location: Tulsa
Posts: 233
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Re: 1993 chevy Silverado 4.3l xcab c1500 low heat problem
my 94 this flap unit is drivers side under dash.
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