1992 Chevy Lumina Heat Problems

Tiny
MOLLYKAYE
  • MEMBER
  • 1992 CHEVROLET LUMINA
Heater problem
1992 Chevy Lumina Two Wheel Drive Automatic? Miles

I have a 92 Lumina and I have recently replaced my radiator and my water pump due to overheating problems. I am no longer having overheating problems but I am not getting any heat in my car. It blows out but it's cold air. Someone please help me in telling me what it could be, I have exhausted my money replacing everything and now I am driving back and forth to work with no heat or defrost! AHHH!
Thursday, January 3rd, 2008 AT 11:37 AM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Try warming the Vehicle, then carefully feel the heater hoses, are they both hot? If one is cooler than the other, You need to flush the core, or do a replacement job on the heater core. Also if the system has a heat control valve on the heater hose, make sure it is working! Also check the thermostat, and the temperature blend door, thats under the dash, in the heater plenum. You can flush this yourself, buy the prestone flush kit and install the tee in the heater return line. Disconnect the heater hose at the waterpump, clamp the hose in back of the tee you installed and back flush till it runs clear.20 mins or so.
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Thursday, January 3rd, 2008 AT 11:43 AM

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