gmcyukondriver
Built, not bought.
Keeps knocking to let him out.
Well, got the truck back from the mechanic, and a couple days later, it's started doing this. It sounds like it's knocking at startup, but only 3-5 times, then it goes away. It's only on startup after it's sat overnight, and even then, it doesn't do it every time. It runs and drives just fine, doesn't knock after that or at higher RPM.
Any ideas?
I'm just wondering why it would do it at startup but not that long. Could it be the computer is retarding the timing?
It's only done it a couple times so far, and it hasn't gotten any worse, I'd just like to figure it out and make it stop.
Well, got the truck back from the mechanic, and a couple days later, it's started doing this. It sounds like it's knocking at startup, but only 3-5 times, then it goes away. It's only on startup after it's sat overnight, and even then, it doesn't do it every time. It runs and drives just fine, doesn't knock after that or at higher RPM.
Any ideas?
I'm just wondering why it would do it at startup but not that long. Could it be the computer is retarding the timing?
It's only done it a couple times so far, and it hasn't gotten any worse, I'd just like to figure it out and make it stop.