Brandon Willoughby· Registered
So I have a very odd problem. I've asked a few people about it and they said they'd never heard of this. I have a 2005 Titan LE 4x4 off-road. When I turn my heat on all I get is cold air. Overtime of me running down the road with my foot on the pedal I get heat. As Soon as I let off the pedal it goes back to cold air. Also when I turn the fan on I hear a popping noise over and over and over. It also does it when I turn the vehicle off. The popping sound is definitely coming from under the dash. Any ideas will be greatly appreciated. Thanks in advance.