This will work to pin down locations of noises sometimes.
Many times you are "Off", in where the sound is actually coming from.
If you think it could be a fan or motorized accessory, while the noise is happening, pull it's fuse or unplug it. Just to eliminate it from the equation
To eliminate all belt driven stuff--or maybe some of the mechanical's of the engine. Take the belt off for a minute or two, see if it persists. Remember this may also drive your water pump, so do not do it for a long time!
And last, I get laughed at for this one, cause it ain't technical or nor does it require "ASE Certification". But it will probably be the one that locates it.
With a 3-4 foot long piece of 1/2--3/4 heater hose or garden hose, cram one end in your ear, use the other like a stethoscope.
WATCH OUT FOR THOSE PESKY MOVING PARTS--THEY WILL PUT A HURTIN' ON YA!
When you described the "clutch thing", that sorta tends to make one believe your crankshaft may be "thrusting" fore and aft. Aft maybe a pulley or bearing rubbing. Fore, you are pushing it forward and relieving the rub.
I hope it's something really stupid, and a EZ fix
Let me know what you figger out!
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Saturday, July 16th, 2011 AT 10:36 PM