The heat on my '99 GT isn't very consistent. It doesn't blow as generously hot as it used to, and it even cuts out altogether momentarilyduring operation. The fans are fine, it just blows cold air.

The intake was replaced a few weeks ago and I topped off the antifreeze, but it dipped down a bit. The car had the same problem pre-intake job, but it wasn't until the old intake was acting up that the heat started doing this.

Any suggestions?

 

sounds like you need a new heater core .

 

chances are the thermostat is stuck open....should have had them replace it when doing the intake

 

it will still get hot w/ thermostat stuck open , it will just take longer .

if the heater core is clogged/partially clogged the coolant cant flow through the coils to get it hot .

 

butt i wont get to normal operationg temp... get heater core flushed and a new theromstat

 

I am having the same prob with my 2000... even when it gets to temp, it still likes to blow cold sometimes, drives me crazy! thanks I will getthe heater corechecked on mine too! that was gonna be my next post LOL!