Maybe the assembler dropped his Titanium wedding ring in your motor?!!! :clown:First off no one knows what it is. I've heard piston slap before and this isn't it (5.3 w/100K). It's way too much. If it is it my engine is getting changed. It's not even cold out 50*. This morning it rattled like a damn diesel!
I think you may be one of the lucky ones who may have a problem. Understand none of us can hear what you are describing. If it is as bad as you make it out to be, you may have something going on.I sit here looking at these posts of oh, it's probably just piston slap and it really chaps my hide. What makes piston slap acceptable in a 3 week old vehicle? What makes a clearance issue acceptable at all?
Guys, there's nothing to worry about with the 5.7L and that annoying sound on cold days. It does not last for more than 3 minutes and there is no long term reliability concerns to the motor. I beleive Toyota when they say it's normal for the 4.7L and 5.7L motors to do that:tu: This is my third Tundra and they have all done that during the Winter months. I just take it easy and make sure to not go over 2k RPM for the first 3 minutes and after that, everything is normal.
I'm sure Toyota put this 5.7L motor through cold weather testing and every other test before they decided to introduce it in the '07 Tundra. I won't lose sleep over this.
They don't fix it because it has to be that way for everything to be in spec when the thing warms up.I'd say this is an issue if it bothers the customer. Why would Toyota continue not to fix this issue after what others are saying has been 'normal' for years with the 4.7 and now maybe the 5.7?