Knocking Sound???? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chevjayfsd · 10-16-2002, 04:41 PM

This afternoon i was getting into my truck after school, and i started it up and noticed a knocking or clicking sound....Just started today i guess... It really doesent sound like a rocker arm could it be though??? Or could it be a header leak??? Or maybe something else?? Im clueless.
Thanks
Jason

my new 72 · 10-16-2002, 04:59 PM

Have you checked your oil lately? I had the same noise coming from mine and it turned out to be the dipstick got tweeked a little on the way down the tube and was barely coming in contact with the crank, not enough to hurt anything, but enough to bug the hell out of me.

Gordo · 10-16-2002, 08:50 PM

Could be a any number of things, you need to zero in on it's where-abouts, such as upper portion of engine(valve covers/heads), lower end (block/oil pan), exhaust, up front (water pump/belts/timing cover) or in the rear of engine (flywheel/trans). You can probe with a long screw driver or wooden dowel (broom handle) by placing one end up against your ear and the other end on different engine components while the engine is running, as you get close to the source, it will get louder. Once you get a better idea where it's coming from we can work from there.

10-16-2002, 04:41 PM	#1
chevjayfsd Project 7dos Join Date: Aug 2001 Location: Abilene, Texas Posts: 876	Knocking Sound???? This afternoon i was getting into my truck after school, and i started it up and noticed a knocking or clicking sound....Just started today i guess... It really doesent sound like a rocker arm could it be though??? Or could it be a header leak??? Or maybe something else?? Im clueless. Thanks Jason __________________ 7DOS - 1972 C-10 350/350 Porterbuilt/Accuair 20x8.5/20x10 Ride Low or Die PSSST - Yes it's bagged. 7dos build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=610290

10-16-2002, 04:59 PM	#2
my new 72 faster, faster, faster Join Date: Dec 2001 Location: Houston ,Texas ,USA Posts: 1,354	Have you checked your oil lately? I had the same noise coming from mine and it turned out to be the dipstick got tweeked a little on the way down the tube and was barely coming in contact with the crank, not enough to hurt anything, but enough to bug the hell out of me. __________________ I'm going to Law School, wanna debate? It's good practice.

10-16-2002, 08:50 PM	#3
Gordo Registered User Join Date: Jan 2001 Location: Killingworth, CT. USA Posts: 3,378	Could be a any number of things, you need to zero in on it's where-abouts, such as upper portion of engine(valve covers/heads), lower end (block/oil pan), exhaust, up front (water pump/belts/timing cover) or in the rear of engine (flywheel/trans). You can probe with a long screw driver or wooden dowel (broom handle) by placing one end up against your ear and the other end on different engine components while the engine is running, as you get close to the source, it will get louder. Once you get a better idea where it's coming from we can work from there. __________________ 1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist.

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