Knock after oil change?
#1
Knock after oil change?
Hey guys, I got a 2006 Silverado 5.3 with 127k miles and yesterday I did an oil change, plugs and plug wires and I used Castrol 5w30 synthetic high mileage. Well at a cold start, and sometimes at a warm start when it’s been sitting a while has a quick knock to it (maybe a couple seconds) then goes away. It’s never done this before, does anybody know what this could be?
Last edited by IrmoRabbidMoose; September 5th, 2020 at 7:28 PM.
#4
CF Monarch
#5
I ended up going back and tightening up the plugs and resetting the wires and changed the oil again with mobil1 synthetic and it really cleared a lot up, but it still makes a good bit of noise.
#6
CF Veteran
Could be a lifter beginning to collapse.
Pull the valve covers and spark plugs. Rotate the engine clockwise using a socket on the crank pulley bolt. As you see valves reaching max lift, pause for a moment and observe the rocker and spring - if the valve starts to close on its own, the lifter is collapsing.
Pull the valve covers and spark plugs. Rotate the engine clockwise using a socket on the crank pulley bolt. As you see valves reaching max lift, pause for a moment and observe the rocker and spring - if the valve starts to close on its own, the lifter is collapsing.
#7
Could be a lifter beginning to collapse.
Pull the valve covers and spark plugs. Rotate the engine clockwise using a socket on the crank pulley bolt. As you see valves reaching max lift, pause for a moment and observe the rocker and spring - if the valve starts to close on its own, the lifter is collapsing.
Pull the valve covers and spark plugs. Rotate the engine clockwise using a socket on the crank pulley bolt. As you see valves reaching max lift, pause for a moment and observe the rocker and spring - if the valve starts to close on its own, the lifter is collapsing.
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