hey whats up guys well i have another delema my car has proper operating temp and a new thermostat installed but I get no heat in the car just cold air....any suggestions???? I'm was thinking of just putting in another new thermostat just to make sure I didn't get a faulty one...but don't know if this would fix the problem

 

Have you checked the servo motor that controls the hot and cold? Its in the dash... there are some write up's on here about it.

 

that sucks

 

do you have the monstrous rattler behind the dash, mine makes me wanna smack my dash with a baseball bat. most likely your servo motor is malfunctioning like mine.

 

no rattle it sound's and blows like normal...minus the heat....and I live in WI so heat is definitely a priority right now .....I'll have to check out the servo motor ....is it a pain in the *** to get to/replace??

 

may i ask why did you change the thermostat to begin with? was there heat before you change it? did you install the thermostat correctly-facing the right way?

 

also check if you got enuff coolant in your system... that could be another cause of this.

 

no there was no heat thats why I figured I'd start with the thermostat and yes it is installed correctly...

 

She's full......

 

ok, does the lower rad hose feel as hot as the upper rad hose? does the rad fan come on and temp gauge stays normal? if yes to both of them, then you need to check if the heater hoses is blocked/clogged. i would disconnect the inlet and outlet hoses, use a blow gun to blow inlet side of the heater core and watch the other end for coolant to come out. if you dont have air supply then use a garden hose instead, good luck.

 

if you have air trapped in the system your heater won't work. After you repaced the thermostat did you bleed the air out of the cooling system?

 

ok well I turns out that both my servos decided to die ..... I tweaked the plastic arm enough to removed the pin from the adjuster and turned the flap manually by hand and walla!!!! out came some sweat u out the car heat....so looks like I be replacing the servos in the near future

 

Heater core could also be a possibility but I really hope not