Starter problems I replaced two starters on a 1998 chevy blazer and when i try to start it just make noise when i try to start it i check the flywheel it look ok why it will not start.

Assuming that you are correct and ALL flywheel teeth are good and flywheel is not broken where it mounts to the crankshaft, You can either try changing the mount end of the starter with the old one, (if it didn't have the same problem) or using shims between the starter and block to get the starter to properly engage.

Is this a screeching sound of it is then, you may need to adda shim between starter and the mounting surface. Double check all wiring to starter and make sure they are not broken especially wire to the bendix of the starter (starter selonoid). Get back top me if you need more help. Thanks for using FIX YA