WHAT IS THE LOW HUMMING OR FAN NOISE IN THE CAB

2004 Mitsubishi Carisma

Tiny

steffan279

November, 8, 2011 AT 10:38 PM

I have a low humming noise or what sounds like a fan in the dashboard just after starting the engine all electrics are off ie fan radio etc

FOUND 615 RELATED QUESTIONS

1 Answer

Tiny

DrCranknWrench

November, 8, 2011 AT 11:13 PM

If the heater fan is off, there are only a few things that I can think of; The valve that changes the flow into the heater caore, which adjusts the interior heat, might not be closing all the way and creatting a high pitched noise.
The thermostat might be stuck partially open and stuck in a position it does nto normally operate in which could cause a high pitched noies.
Resonance from interior metals or engine bay parts could vibrate against each other and casue noises.
There could be worn out accessory belts that needs replacement or adjustment.
The power steering level may be low.
The timing chain/belt could need replacement.

Check out those possibilites and maybe try to see where the noise sounds like it is coming from if the hood is open and you look around for its source.

Please login or register to post a reply.

Brake Pad and Rotor Replacement Ford Explorer
Serpentine Belt Replacement Chrysler
Engine Oil Change and Filter Chrysler 300