Starter grinding flex plate teeth

[Mack93]

I have a bone stock 2021 ram 3500. 6.7 Cummins H/O hooked to a Aisin transmission. Truck has 162k miles. Original starter solenoid went bad. Had it changed out. 3 days later on a cold start I heard a grinding noise and truck wouldn’t turn over. I new what it meant. Towed the truck to a shop. They replaced starter and flex plate. I also changed both batteries since one was deemed low. Truck drove great for 3 weeks. Go to start it again and grinding noise is back. And I’m clueless of why. ( I use the truck to haul a 36’ 2 car enclosed trailer)

 

[06 Dodge]

Something is off, I would take it back to the shop that installed it, I would think it has some kind of warranty being its Fu-bared in just 3 weeks...

 

[Mack93]

It’s there now. Waiting to see what’s the outcome. Trying to see if anyone else has had this problem

 

[06 Dodge]

It’s there now. Waiting to see what’s the outcome. Trying to see if anyone else has had this problem

I have not read any reports in the forms for this type of problem...

 

[GTyankee]

has to be something like the wrong number of teeth or the spring throw

is the starter Bendix Spring & fly wheel or flex plate a matched pairing

 

[Mack93]

I would believe so. All parts came from the dealer. And are Mopar parts.