Last post on Jan 15, 2013 at 11:27 AM
You are in the Chevrolet Silverado & GMC Sierra
What is this discussion about?
Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Silverado 2500, Truck
#11 of 14 Re: Noise at start up [wog6269]
Dec 15, 2012 (9:14 am)
As I stated back on my posts, it is definitely the famed "piston slap" issue. GM will do nothing for you. In fact they'll do as much for you as the Poser GM Sarah....NOTHING.
My 2000 Silverado has the 5.3 and the piston slap. The routine I suggest you follow short of replacing the engine is simple; start it up and let it idle for 4 to 5 minutes (yea I know it means you have to sit and wait) by doing so it lets the engine temp heat up and the metal parts to expand to within tolerance range, the slap goes away and your on your way with the GM junk we all once trusted. I have followed this routine for all 96k miles I have on my truck and it has not had any ill effects other than an annoyance factor. GM extended my engine warranty to a 5 yr/100k when I established my case file back in 2001.
The final advice is show GM your lack of confidence in their products when it comes time for a new truck, buy something other than GM. They will never go belly up because our government bails them out when they do stupid things.........as Larry the Cable Guy stated "ya can't fix stupid"
As for GM Sarah, she can take a long walk off a short pier in shark infested waters to join the bottom feeders she swims with, no one would miss her, not even her children if anyone was stupid enough to mate with her.......
Case closed.... Ray T
#12 of 14 Re: Noise at start up [rayt2]
Jan 14, 2013 (5:50 pm)
Ok with all this information I've been givin let me start by saying the problem the whole time was bad cat's....when they finally pluged up anough that truck gave a po420 code noise is gone dealer replacing cat's as I type hope it is fixed for good this time....hope this helps others out with their trucks
#13 of 14 Re: Noise at start up [chevy_sucks1]
Jan 15, 2013 (11:27 am)
It's great to hear that they've found the cause, chevy_sucks1! Let us know how everything is running after the repairs!
Sarah, GM Customer Service