Heater Problem's 93 Pickup?

DODGER#1

MEMBER
1993 CHEVROLET

1993 Chevy Pickup Chyene 1500 V6: I'm having a problem with my heater. The problem with it is that when I turn it on it blows cold air only through all the vents. Put when I put my thermostat to hot air it wont throw the hot air in. There is no vaccum hoses broken nor anything leaking. Can u guys help me out? And Thank u.

3 Replies

BACKYARDMECHANIC

MECHANIC
337 POSTS

Sounds like the heater core is clogged. How is the car running reguarding the temperature. If its running cool then the thermostat is either struck open or has been removed. Are you the original owner? BYM

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Friday, December 15th, 2006 AT 1:22 PM

DODGER#1

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9 POSTS

The tempature is running fine. Nor any thermostat has been removed. It just stop heating when I turn on the heater. It turns on but just cold air comes out. And yes im the original owner.

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Saturday, December 16th, 2006 AT 12:48 AM

BACKYARDMECHANIC

MECHANIC
337 POSTS

Check that the heater control valve (if equipped) is opening if this is operating correctly than you need to flush the heater core. Do this by removing both hoses from the heater core and using a garden hose. Continue to flush until you have a good flow.

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Saturday, December 16th, 2006 AT 6:56 AM