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dmulally · 05-21-2022, 04:48 PM

OK looks like I found the problem. The starter motors weren't interchangable but I thought I'd take it out anyway. One of the bolts was 10mm out of position and just spinning when trying to tighten up. I was going to re-tap the thread so went to take the other bolt out and noticed it was a larger size bolt.

A couple of turns of the larger bolt later and part of the block fell off.

Time to start the warranty process I guess. Thanks for the responses, lads.

05-21-2022, 04:48 PM	#6
dmulally Registered User Join Date: Feb 2018 Location: Shannon, New Zealand Posts: 31	Re: Vortec 5.7 Mystery Sound OK looks like I found the problem. The starter motors weren't interchangable but I thought I'd take it out anyway. One of the bolts was 10mm out of position and just spinning when trying to tighten up. I was going to re-tap the thread so went to take the other bolt out and noticed it was a larger size bolt. A couple of turns of the larger bolt later and part of the block fell off. Time to start the warranty process I guess. Thanks for the responses, lads.