1986 Chevy Silverado

CHAVA805

MEMBER
1986 CHEVROLET SILVERADO
V8
2WD
AUTOMATIC
72,000 MILES

I HAVE A 1986 SILVERADO TRUCK V8 I WAS RECENTLY ON THE FREEWAY WHEN I HEARD A WINDING SOUND I DROVE ABOUT 10 MINUTES MORE HOME. WHEN I PARKED THERE WAS A GRAY SILICONE SUBSTANCE ON THE FLOOR I TOOK IT TO MY MECHANIC HE SAID IT WAS THE FAN CLUTCH SO HE REPLACED IT BUT KNOW IT SEEMS TO SOUND LOUDER WHEN I GET TO ABOUT 35 TO 45 MILE PER HOUR LIKE THE RPMS ARE HIGHER IT USED TO BE QUITER PLEASE HELP

3 Replies

MHPAUTOS

MECHANIC
31,937 POSTS

Hi there,

A new viscus clutch assembly will draw a lot more air than the old one that was more than likely not working very well at all, often my customers say the care sound like a 747 warming up as it sounds so loud, give it a while and it wont be so noticeable, if in doubt get your mechanic to re check for you.

Mark (mhpautos)

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Thursday, April 23rd, 2009 AT 11:49 PM

CHAVA805

MEMBER
1 POST

The fan clutch that was installed on my truck was heavy duty versus the regular one would this make a difference on the fan speed my engine is sounding like a 747 ihad the heavy duty one installed because I thought it was better

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Sunday, April 26th, 2009 AT 5:51 PM

MHPAUTOS

MECHANIC
31,937 POSTS

Hi there,

this is the extra air being drawn into the engine, if you have any doubts, get your mechanic to inspect first hand and advise.

Mark (mhpautos)

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Sunday, April 26th, 2009 AT 7:43 PM