Update on serpintine belt

[Localsun77]

I let my truck warm up for about 6 mins and the chirping had gone away, I did tighten up the tensioner, alternator seems to be good to go, about 1/4 inch slack, does anyone else have this happen Durring cold start only? Thanks guys

[RayVoy]

I let my truck warm up for about 6 mins and the chirping had gone away,

That's the clue, if the noise stops after a few min of warm up, it is the belt. My previous truck had the same problem, a new belt stopped it.

BTW, keep the old one for an emergency spare, it's still a good belt.

You didn't tell us what you have for a truck, but if you have two belts, it is usually the long one.

[Localsun77]

Hey ray it's just a single belt, I'm missing my old truck a little it had the 5.7 vortec and I downgraded to a 4.3 vortec, had a 97 silverado

[RayVoy]

Hey ray it's just a single belt,

Haha, then I'll bet that's the belt.
I've had 2 4.3 engines. Good engines, I had 320,000 on one of them and it worked great.

[Localsun77]

I was impressed with 5.7, 160,000 on it ran and started everytime, never a single problem, I hope te 4.3 follows suite