I have a 96 3.2TL! When I come to a stop the Heater will resort to blowing cold air out of the vents! When I take off and drive the heater will blow pretty hot! I have changed thermostat, blead the system, new Radiator cap, Checked for leaks, and none! I have asked numerous people/mechanics, and no one has a fix! I am begging for an answer, but I convinced only the best mechanic out there knows the fix! Please help! Free pat on the back to the one who answers correctly!

 

It's air in the system. Bleed it on an incline and try it again.

~Cheers~

 

Been there, done that.

 

its either you have air in the system or your waterpump is on its way out. OR worse case is that your cooling system is clogged.

 

I'm no master but I'd put my money on the water pump. Since when idling it lacks power, when driving it gets more juice. Prolly clogged up as well.

 

Shit, forgot about the pump.

~Cheers~

 

Quick Q: Ever used silicate anti-freeze or additives? Radiator leak stop, quick fixer uppers. Ever flushed?