No Heat

[dukebear7]

Having a heating issue with a 1995 Chevy suburban, just had a thermostat put in and last summer a water pump installed. Took notice that the water looked like muddy water could this be the problem.

 

[MO Viet Vet]

Muddy water could be a source of a clogged heater core. Remove the hoses at the heater core and flush out with water pressure. Replace the thermostat with a 195 degree thermo because it may not be working anymore from the muddy water. When you have the upper hose off at the thermo remove the lower hose and water pressure again thru the radiator. Are you sure you have a properly functioning blend door actuator or any problems with dash controls? Like does the heat only work at defrost but not at the floor....etc.?

 

[dukebear7]

It throws air all over (dash,floor,defrost)

 

[MO Viet Vet]

Well if the air comes out at the proper place when the controls are set to that place then I would lean toward what I posted.

 

[dukebear7]

Thanks for your help will try.