heater control does not increase
Le Mans Master
Joined: Jan 2006
Posts: 5,620
Likes: 206
From: Orlando FL
I'm taking a guess and saying your heater core might be clogged up. Get the engine up to temperature and feel both heater hoses. They should be about equally hot, and as hot as the other radiator hoses.
If the heater hoses are not hot, that’s your problem. Then take the hoses off and flush the core (gently). Also good idea to flush the rest of the system and change the coolant.
If the heater hoses are not hot, that’s your problem. Then take the hoses off and flush the core (gently). Also good idea to flush the rest of the system and change the coolant.
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
It sounds like you've got burned resistors in the HVAC programmer (above the gas pedal). They apply power to the heater blend door motor and it doesn't work if the resistors are burned. See here:
http://www.batee.com/corvette/acrepa...oard/index.htm
He was wrong about the value of the resistors. They are 140 ohms.
http://www.batee.com/corvette/acrepa...oard/index.htm
He was wrong about the value of the resistors. They are 140 ohms.
