Grinding noise on cold start

abcd123456789

Hello,

My 2003 Pontiac Vibe is making a grinding noise on cold starts, but always does start. Originally, I thought it was the starter so I changed it with a brand new (not rebuilt) starter and it fixed the problem for about 2 weeks then the noise came back. I then took it to the mechanic who diagnosed it as the starter. I then replaced the starter 2 more times with the problem not going away. Has anyone else had this issue? What else could this be? I also replaced the battery with no success.

Any help is appreciated... thanks!

Mr_Shiftright

Did anyone check the condition of the teeth on the flywheel? Did anyone notice if this type of starter takes a special bolt, or shims, in order to work correctly?

abcd123456789

I did not notice any shims when I replaced the original starter. Perhaps checking the flywheel would be the best next step for me. Thank you!

Mr_Shiftright

Seems like a logical next step. Ring gear/pinion alignment is very important.