Last post on Jan 16, 2007 at 8:57 AM
You are in the Chevrolet Suburban & Tahoe
What is this discussion about?
Chevrolet Suburban, GMC Yukon XL, Cadillac Escalade ESV
#40 of 44 Re: HELP! MY 06 Suburban 8.1 enging knocks [jsomers]
Dec 18, 2006 (5:56 am)
I have a '99 Tahoe with the 5.? engine (not the 5.3) and it 'knocks' for about the first 30 seconds, especially in cold weather. My mechanic brother-in-law (who works on a lot of commercially used GM trucks) says it's 'piston slap' and a result of the engine design...and not a problem. My Tahoe has 170 kms on it and runs like a top...knock not withstanding.
#41 of 44 Re: HELP! MY 06 Suburban 8.1 enging knocks [suburknock]
Jan 01, 2007 (5:56 pm)
May GM trucks are well known for what is commonly called Piston Slap. I have it on my 800 series 2000 5.3L Yukon and I have heard it on several 6.0L GM trucks. I took it to the dealer to complain several times when it was newer but they just printed a page from the GM dealer service intranet that said it was not considered a problem. Eventually they gave me a letter that said it will not cause long term damage. I know some that received an extension to 100,000 mi warranty only the motor. See www dot pistonslap dot com for more details.
#42 of 44 Re: Who designed the new Yukon? [vmidad]
Jan 01, 2007 (5:59 pm)
I just noticed that in the last few weeks GM started offering the Yukon XL and the Suburban with the 6.0L for approximately an $1,100 upgrade. You don't have to order the 3/4 ton to get the 6.0L.