Mechanics

KNOCKING

2009 Nissan Altima • 2.5L 4 cylinder 2WD Automatic • 70,000 miles

Why does my 2009 nissan altima 2.5 make a knocking sound when I turn on the heat? It sounds like an engine knock but it stops whey I turn off the heater/blower motor. Is it a bad blower motor.
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Stullie
December 16, 2013.




With a noise like that I cant hear noise use a long screwdriver to track the noise to its source.

Saturntech9
Dec 16, 2013.


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