Noise problem tahoe 2010

[tamari1000]

hello i need help with my 2010 tahoe lt i really love this car but i have one problem when i drive the car sometimes i hear like kicking noise (like when 2 metals hit each other) when the transmission changing gears when i drive 30-40 miles ,i went to chevy dealer twice they check the car and all of that and every time i went there its didn't make that noise it not happen all the time but its annoying and i want to fix it - it is 2010 tahoe i shouldn't have this kind of noise - it also happen to me when i come out of a turn and hit the gas i hear the noise - anybody know anything about it?
those guys from chevy drive the car twice and said the truck is fine - but its coming from time to time
thank you for you help

 

[Donut Slayer]

Hate to tell you this, but that noise is normal for the 6sp auto transmission. My 2010 PPV Tahoe does it too.

 

[tamari1000]

Are sure it is normal ?
This noise come from time to time like banging sometimes when I start driving and sometimes when I drive like 30-40 mph , I must ger rid of it .
Dd you try check with the dealer ? Where is it noise coming from ?
Transmission ? Driveshaft?

 

[Donut Slayer]

Its pretty much normal. Its from the clutch style, direct clutch to clutch design on the 6L80E trans. Every tahoe in my depts fleet does it. We have about 70 of 'em. You can make it do it by letting off the gas just before it shifts to the next gear. Its the firm shift of the clutches.

 

[tamari1000]

What is 6l80e ? Do you think I have nothing to worry about ?
What kind of truck is that ? Do you think the mechanics in chevy cannot take are of that ?
It 2010 car

 

[Donut Slayer]

http://en.wikipedia.org/wiki/GM_6L80_transmission

GM 6L80 transmission


From Wikipedia, the free encyclopedia





6L80/6L90



Manufacturer

General Motors



Production

2005–



Predecessor

4L60-E/4L65-E
4L80-E/4L85-E



Class

6-speed longitudinal automatic transmission


The 6L80 (and similar 6L90) is a 6-speed automatic transmission built by General Motors at their Willow Run Transmission plant, in Ypsilanti, MI. It was introduced in late 2005, and is very similar in design to the smaller 6L45/6L50, produced at GM Powertrain in Strasbourg, France. It features clutch to clutch shifting, eliminating the one-way clutches used on older transmission designs. In February 2006, GM announced that they would invest $500 million to expand the Toledo Transmission plant in Toledo, Ohio to produce the 6L80 in 2008.