Misfire

[65rbdodge]

I picked up a 2012 5.7 cheap, the owner had the motor in his truck replaced because of a misfire. I knew exactly what I was getting and what to expect. However I've never seen one this bad

 

[408 swinger]

Definitely have seen that before, personally. Crazy deal. I've had two Hemi powered vehicles come through the shop in the last two weeks with misfires. I instantly feared the worst. One was injector, the other simply a bad connection on a coil. Typically when they have misfire codes, it's all over.

 

[67Dart273]

WOW

 

[MechNerd]

Wow! Looks like that lifter locked up and skidded right through that lobe.

 

[DARTGAME]

MDS motor? Looks bad

 

[RustyRatRod]

That's not a misfire. A misfire is ignition related. That right there is a sho nuff clusterfukk lol

 

[408 swinger]

MDS motor? Looks bad

MDS doesn't have ANY bearing on cam failures. I've seen NON MDS lobes fail as well. The only real common denominator is VVT engines. I have seen lifter failures in the 30-08 engines, due to extreme non-maintainance.

 

[65rbdodge]

Yes, MDS, lifter still spun free, soft cam or oil starved is the popular diagnosis, the rest of the motor was fine, 110k miles, no sludge buildup. I have it down to the block now,cam and rod bearings look OK mains look not the best. Crank just needs a polish, will replace all the bearings.