Need Help, knocking-pinging - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Dead Parrot · 10-07-2018, 11:08 PM

Take all the belts off and see if the noise is from one of the accessories. Plus the lack of fan noise might make it easier to find the noise. Just don't run it very long at any one time.

Is the noise there when the truck isn't moving? A brake pad wear feeler can sound like a tick when the vehicle is moving.

mhoflin · 10-10-2018, 07:02 PM

It makes the noise when in gear and I bring up the RPMs, powerbraking. I have no clue but I will try taking the belts off to see if I can narrow the location down. Other than that I will have to wait and see.

cadillac_al · 10-15-2018, 06:17 AM

Quote:

Originally Posted by mhoflin

It makes the noise when in gear and I bring up the RPMs, powerbraking.

That kinda sounds like an exhaust leak to me. If you want to rule out actual detonation you could try a tank of premium fuel to see if it goes away.

10-07-2018, 11:08 PM	#1
Dead Parrot Registered User Join Date: Aug 2012 Location: Oklahoma City, OK Posts: 2,670	Re: Need Help, knocking-pinging Take all the belts off and see if the noise is from one of the accessories. Plus the lack of fan noise might make it easier to find the noise. Just don't run it very long at any one time. Is the noise there when the truck isn't moving? A brake pad wear feeler can sound like a tick when the vehicle is moving.

10-10-2018, 07:02 PM	#2
mhoflin Registered User Join Date: Aug 2018 Location: Billings Posts: 20	Re: Need Help, knocking-pinging It makes the noise when in gear and I bring up the RPMs, powerbraking. I have no clue but I will try taking the belts off to see if I can narrow the location down. Other than that I will have to wait and see. __________________ Thank you and God Bless you, Marc SGT., US Army - Disabled



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