2005 Silverado Knocking Noise

5.3, 67000, loud knocking at idle, no smoke, oil pressure ok, quieter (a little bit) when warm, sometimes quiet at start up, quieter at higher RPMS. Other symptoms are coolant/oil mixture in the intake manifold. Intake gasket replaced. Thinking it is maybe bad lifter, valve, or rod?

does have the 799 heads..not sure of castech brand yet..going to pull the valve covers

Category:

Autos & Vehicles

Tags:

• silverado
• knock
• ls1
• coolant leak
• castech heads

[BREAL07960]

Dude you got robbed..That's a Lifter and rocker arm..not a connecting rod..the coolant would be responsible for the oil breakdown, how it got in there only the owner and mechanic knows. You should have just replace the lifters and rocker arms..epecially at 67000..that isn't a major problem..if it was a connect rod it would be A LOT louder and consistant. Just my 2 cents..sounds like your mechanic took you for a ride..Sorry.



[chunkeerod]

@BREAL07960

I did not get robbed. That was an early on video. It got a lot worse. I've since sold the truck and have a new F150. This is a common problem with these engines. read up on it.

[chunkeerod]

Made out poorly. Had to replace the engine. It was a rod knock. Too much coolant in the engine. What a pain. Luckily I found a guy with an 06 L33 engine, he installed it for a great price. I just traded the truck in on a 2010 Ford F150. I will try this brand and see what happens. I just did not trust the chevy any more. Good luck to you sir. And it was not the flywheel.

[TheGazdik]

im guessing you didnt change the oil enough and a lifter got stuck or its a rocker arm

[214dallas931]

was your check engine like one when this would happen?

my truck does the same but it goes away after it gets warm and it runs smooth only ever cold morning when i go to turn it on it does it but it isnt really loud like this. was your doing the same?

[rinkerkills99]

on 2000 to 2006 chevy they put a glaze in the engine. the glaze comes off after a while everone saying you blew it is stupid. it wont cause a problem if you let it warm up. trust me i have the same problem with my 2000 chevy silverado v8 1500.

[fordpower9703]

it may be the torque converter......

[ZRider3591]

How did you blow this engine up at 67k? Were you not changing the oil or something?

[copleygsxr]

@Runkleforskin Wow 

[Runkleforskin]

@copleygsxr The idiot owner of this truck//video went to check and re-fill his radiator and put the coolant in the godam oil inlet on the fucking engine.