My 98 blazer has a new engine and I have a screeching belt problem that I can't get rid of. I have changed idler pulley ,tension pulley. The noise seems to worsen when I accelerate. What else could it be? Any solutions?

 

a lot of people chased this for a while then ended up with this belt and no more squeal. worked for me also. make sure you order the right size https://www.amazon.com/Continental-4...gatorback+belt

 

I finally fixed this problem on mine today, it was another poster in this forum that suggested pulling the power steering pump pulley out by 1/8 of an inch. I honestly couldn't think of why this would work because the noise seemed to be coming from the top idler pulley but it worked. No more noise! I wish I had tried this before I replaced all three pulleys, the belt (twice) and rebuilt the alternator with new bearings.

 

Gatorback used to be a Goodyear product. Now it is a Continental product. I have used them on my 1994 Chev Impala SS with great result. They are quiet as well as long lasting......
Goodyear Engineered Products are now branded Continental Elite
Quiet channel technology features unique staggered-cog profile and advanced rubber compounds to reduce chirps and squeaks
High-strength tension members allow greater wear resistance
Quiet channel technology increases flexibility, abrasion, and heat resistance to last longer
Designed for quiet performance, constructed for high efficiency

The Continental Gatorback is $29.50 Prime Amazon.