ticking noise
#1
ticking noise
I have a 2001 Chevy 1500 and it makes a ticking noise when it starts up. Sometimes it goes away quickly other times it has to warm up for awhile. While it is making this noise and I step on the gas it gets a little louder. What could it be?
#2
Very common on the 1999 and up (4.8, 5.3, & 6.0) motors. GM calls it piston slap and claims it doesn't harm anything. I have to agree since I have had a few of these trucks with 300K on them that tapped from the day I bought them used - usually around 120-150K is when I bought them. You can sometimes make it a little better by running thinner oil. What oil are you currently running? We were running 10W40 in my wife's Yukon and went with 5w30 and a quart of Lucas oil treatment and it only would do it briefly on cold mornings.
#3
My 04 has the piston slap every morning at a cold start up and some times after it is warm and hot too. I just let it run at idle about 30 seconds and the tick goes away. And I have run mostly 5w30 oil.
#4
Once you've eliminated all the other possibilities. ie: exhaust manifold leak, low motor oil. You can pretty much assume it's what Mr. Shamrock and Timer74wolf said.
WELCOME to TruckForum.com Atgs1987
WELCOME to TruckForum.com Atgs1987