knocking coming from front suspension (Strut Area)

ScottyMIX · August 17, 2015

About 3 months ago my 2014 Z71 Silverado developed a metal on metal knocking sound coming from the front suspension area.

Round 1 with the Chevy dealer... I was told my the knock was the strut mount bolts were "not tight".

-- The knock promptly returned the next day....

Round 2 with the Chevy Dealer... it was discovered that the "lower insulator" on the passenger side strut was cracked. parts have been ordered...

-- I will have an update on Friday after the repair is completed..

20SierraL8T24 · August 18, 2015

Good luck. Hope that it doesn't drag on and they found the issue

lockey14s · August 18, 2015

do you have a leveling kit on?

fondupot · August 18, 2015

Yea, the lower insulator is nothing more than a piece of plastic that goes between the spring perch and the spring.

ScottyMIX · August 19, 2015

do you have a leveling kit on?

Yes, I have a 2" ReadyLift installed .

lockey14s · August 19, 2015

is this all out of your pocket? I tried to have them fix my popping noise in the front end under warranty and they said no because of the level (2.5" rough country).

whats the situation when it knocks? turning the wheel? constant knocking? forward or reverse? like fondupot said, that part thats cracked is just a plastic seat for the spring to sit on. i doubt that would create the knock sound.

20SierraL8T24 · August 20, 2015

I bet it's the ball joint. Several people here including myself have had them fail already. I have a 2 inch level as well and my dealer didn't give me any trouble.

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lockey14s · August 20, 2015

I bet it's the ball joint. Several people here including myself have had them fail already. I have a 2 inch level as well and my dealer didn't give me any trouble.

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upper or lower?

20SierraL8T24 · August 20, 2015

Lower, driver side.

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ScottyMIX · September 1, 2015

UPDATE........ The passenger Lower Insulator was Cracked right down the side....

lockey14s · September 21, 2015

did it solve the problem?

ScottyMIX · September 30, 2015

did it solve the problem?

Well.... the knock went away for about a month, now its back.... I don't know if the readylift is causing it. I still need to tear into it and verify that its the insulator again... if it is.. I plan to order the Rancho loaded quick lift complete strut assy.

ScottyMIX · November 3, 2015

UPDATE...UPDATE..... the ReadyLift was the problem....my recommendation... if you are going to install a leveling kit....

get one that mounts at the bottom of the strut assy...

fondupot · November 3, 2015

UPDATE...UPDATE..... the ReadyLift was the problem....my recommendation... if you are going to install a leveling kit....

get one that mounts at the bottom of the strut assy...

OR get bilsteins 5100's.