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yes there is a fuse and it should be behind a panel in the lower dash near the drivers area..the fan is located under the hood way back up behind the engine on the passengers side and kind of hard to reach..good luck
Hello! Coil of Heater Relay is supplied through Fuse "IG1 2" (10A)...Located in the Drivers Side Box...Contacts of Relay are supplied through "Heater Fuse (50A)...Located in Engine Relay Box...Blower Motor has a 2 wire connector with wire colors: Black/Yellow (Pin 2)...And White/Blue (Pin 1)...Pin 1=Ground and Pin 2=Battery when Relay pulls and contacts close... The Blower Resistor Pack (Which fails often) controls the fan speed...BUT, there is a fuse inside the assembly...If it blows = No Fan...Located on the top of the heater/AC box and can be accessed through the Glove Compartment...Guru...Saailer
Hi its ounds like the fan has failed, the fan blows the heat into the vents without it, it will just remain in the heater core. other possibility and very common also is the cabin heater regulator they ofetn go, located in the middle of the car looking into the engine compartment has 2 pipes one in one out, feel the pipes see which is hot etc and get back to me.
I have the same problem with my 2001 Tahoe. The front blower is working, its blowing strong, but its cold air even with the temp setting as high as it can get. The rear blows hot air. The engine temp guage is at about 210ish which is close to being normal (220). I just replaced the thermostate a few months ago, I don't know if its bad again, or it I deluted the antifreeze too much and it frooze the heater core, or if the heater core just went bad. Any one know what the cause could be?