bought a 07 silverado classic 4week ago . from day one truck vibrated around 40mph. today i learned that the exhast is the source. they want to fix with a flexible exhaust pipe. i guess thing are pretty tough a GM. it will be a nice band-aid fix . not happywith their cost saving measure. thats what i get for buying a v6[:@]

 

I can't believe that the exhaust would give you much of a vibration. I would get another opinion.

 

after checking out the problem on other forums, gm has had this problem since 99, they also call for 4damper weights to be installed along the exhast system. and it"s just the v6
http://ca.answers.yahoo.com/question...7133346AAZYKrv


http://www.automotivehelper.com/topic300746.htm

 

I've heard similar problems associated with the V-6 models, but not right off the factory line. Usually it occurs once some miles are put on it. What I would do, if you have the money, take that power robbing, back pressure producing factory exhaust off and hook it up with some real exhaust. Cat back system would probably work great with your truck. However, I'm assuming yougot the GM 100,000/mile warrenty. If that's so, let them fix it. Good luck bro, and sorry to hear about your problems.

 

i"m not in to power for a truck. thats what my c3 is for. i drive 125mi round trip everyday for work. had 140,000 on my 99 with a 6 and 95,000 on 03 with a 4.8, both were trouble fee truck. i need the gas milage. plus i"m a old man and there are alot of deers on the road when i leave for work,thanks for letting me vent
russ

 

An after market exaust will not only free up some ponies but will increase mpgs too.

As for this vibration, I have the exact same thing. It will vibrate my foot to sleep almost on long hills on the interstate.

Bill

 

i have the same rattle on my 03. Whilst i agree with the upgrade to aftermarket i would let chevy try to fix it first. then replace it as soon as they are done as a penalty.