2000 c5 lifter problem
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2nd Gear
Joined: Dec 2008
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From: Riverside CA
2000 c5 lifter problem
I have a 2000 C5 that started out a light ticking noise and slight lower gas mileage it has now become louder I took it into a local corvette shop and they have told me that the problem is in the #7 cylinder and that the lifter needs replaced. Has anyone attempted to change one of these before? Any help appreciated.
Tech Contributor
Joined: Jan 2007
Posts: 19,246
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From: Dyer, IN
I have a 2000 C5 that started out a light ticking noise and slight lower gas mileage it has now become louder I took it into a local corvette shop and they have told me that the problem is in the #7 cylinder and that the lifter needs replaced. Has anyone attempted to change one of these before? Any help appreciated.
I would pull the valve cover first, and make sure you don't have a broken spring, which is not uncommon.
You might get lucky, it's a lot less work than pulling the heads..
Racer
Joined: Oct 2004
Posts: 480
Likes: 16
From: chicago il
I would also pull the rockers and check for excessive play and or missing needle bearings .. When i did my heads and cam on my 2000 that has 60k i had 4 very loose rockers but hadnt lost the bearings yet, but they were on the way out also had a bad ticking and had thought lifter... Check it out
Tech Contributor
Joined: Jan 2007
Posts: 19,246
Likes: 1,093
From: Dyer, IN
I would also pull the rockers and check for excessive play and or missing needle bearings .. When i did my heads and cam on my 2000 that has 60k i had 4 very loose rockers but hadnt lost the bearings yet, but they were on the way out also had a bad ticking and had thought lifter... Check it out
Burning Brakes
Joined: Oct 2004
Posts: 931
Likes: 31
From: Rowlett, Texas
Just a thought; the number 7 cylinder is quite often the first one that fails in hi-power applications, due ostensibly to an inherent lean or cooling issue in the LS engine design. You might check compression to be sure it's not rings or piston issues.
DG
DG
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Tech Contributor
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From: Dyer, IN
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
My son just started having a similar valve train noise issues. He has an LS2 in a Jeep Wrangler. 
Just for reference, I have included some pictures of where the lifters are and what your going to need to do to get to them.
Lifters in the lifter tray:
Once you remove the heads, you will see the lifter valley where the lifter trays set:
Like others have stated,,,If you replace one,,,,,replace them all. Checking those rockers for bad roller bearings is a very sound suggestion.
I sent him a link to this post.
Bill C
Just for reference, I have included some pictures of where the lifters are and what your going to need to do to get to them.
Lifters in the lifter tray:
Once you remove the heads, you will see the lifter valley where the lifter trays set:
Like others have stated,,,If you replace one,,,,,replace them all. Checking those rockers for bad roller bearings is a very sound suggestion.
I sent him a link to this post.
Bill C
