[TheGuardian]

When I switch on my defrosters I get a load moan from under the dashboard. It sounds like a pump straining. It starts quite builds then stops then starts again. It only happens when the defrosters are on. Does anyone have any idea?

 

[johnjwomack]

does it stop after a few seconds? or is it continuous. im guessing its the front defroster right?

 

[mrgrayaz]

Its the defroster doors being jammed and attempting to open.

 

[TheGuardian]

it keeps going i think the sound is coming from the compressor

 

[TheGuardian]

i have found the problem it is in the in cabin filter i can't figure out how to get it out to clean it but i was able to blow most of it out. how do you get that flirer out on a 2001 frontier