Lifter noise at start-up 07 Yukon XL
May 2nd, 2010, 9:04 AM
#21
CF Junior Member
Join Date: Oct 2007
Posts: 37
Likes: 0
Received 0 Likes
on
0 Posts
Have the same issue with my 2010 Sierra 5.3L using Mobil 1 5W-30. Anyone have any thoughts on switching to 10W-30? Could it 1) elevate the problem 2) cause damage to bearings or valvetrain. I think the 2010 introduced VVT to the 5.3 lineup so I'm a bit reluctant to do it but can not stand the lifter noise at startup.
May 2nd, 2010, 5:03 PM
#22
Administrator
Probably drop mpg a little and maybe quiet the lifters for a while but I doubt it will last. Is the truck new and in warranty? If it is, then get it fixed. Lifters aren't supposed to clatter when new.
May 4th, 2010, 12:41 PM
#23
CF Beginner
Join Date: Apr 2010
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
lifter noise . i have a thread on a similar issue going on . but i also have a mis-fire associated with it . it was intermitten but became full time . i will reply to the thread i started when i have the vehicle back from the dealer (1-1/2 week now
) it was a collasped afm lifter for sure.
) it was a collasped afm lifter for sure.
Thread
Thread Starter
Forum
Replies
Last Post
trev0006
Tahoe & Suburban
54
February 2nd, 2022 10:21 PM
in2pro
Tahoe & Suburban DIY and Useful Threads
0
April 26th, 2015 12:22 PM
