Posted: Dec 07 2010 at 9:44am | IP Logged

Hi all, I got a 2007 Frontier. with the winter arriving I am seeing something strange with my heat. If my truck is not moving or reving I do not get any heat to come out. No matter how long my truck has been running.  BUT once I rev the engine or start driving the heat comes right out. once I stop say at a red light it the air gets cold again..

Any ideas on this odd scenerio??

Thanks

Harpoon

Posted: Dec 09 2010 at 9:33am | IP Logged

hmm, thanks frontierguy but that blows.  I did narrow it down to may be a coolant issue and was reading about how to flush it myself. Seemed doable but now that you are saying Air in the line and need special tools.  that mean service call which means $$$$   NOT COOL..

so how does air pockets end up in the line?  because the coolant level got too low?

thanks alot for the info

Harpoon

Posted: Dec 14 2010 at 6:34am | IP Logged

I just registered/came on to begin looking into this issue myself.  My truck does the same thing!  Never noticed until these past couple mornings since I recently installed my remote start.  I have no heat either until I get into the throttle a little bit.

I was thinking it may be related to coolant, but the level looks fine.  Could a bad thermostat act this way, or the fact that it only gets cold at idle elimates that idea?  I'll try adding/checking the coolant level again and post back.

Frontierguy, what part of PA are you from?