Squeal and flapping sound

[H2inMD]

2003 H2 95000 miles. put new drive belt and tensioner on. Still need to do the A/C belt and tensioner.

It seems to squeal like a pig as I start out. It might clear up and it might not. Sometimes if I accelerate it start again.

Seems like it neutral it hardly makes a squeal.

Then, if you step on the gas, sometimes it will make a flapping sound, weird. I can't really describe the sound its different. The check engine light will flash. no codes though.

Ideas?

thanks