[Katemcooper]

Just bought a 2012 5.7 hemi with bad lifters/cam replaced lifters, cam, pushrods, etc. got it all back together and it turns over good and almost starts, but won’t start. Thoughts on where I could have gone wrong? Scanner found issues with o2 sensor, catalyst monitor, O2 sensor heater monitor, and EGR/VVT I think. Any help or ideas appreciated.

 

[HelloIamaRam]

Just bought a 2012 5.7 hemi with bad lifters/cam replaced lifters, cam, pushrods, etc. got it all back together and it turns over good and almost starts, but won’t start. Thoughts on where I could have gone wrong? Scanner found issues with o2 sensor, catalyst monitor, O2 sensor heater monitor, and EGR/VVT I think. Any help or ideas appreciated.

what kind of cam and lifters did you replace it with?

 

[DILLIGAF]

You need a startup tune when using aftermarket CAMS. I hope you also did the MDS delete while in there...lol..

 

[Katemcooper]

what kind of cam and lifters did you replace it with?

I just put in a stock cam

 

[Katemcooper]

You need a startup tune when using aftermarket CAMS. I hope you also did the MDS delete while in there...lol..

I just used a stock cam

 

[Katemcooper]

I thought it could be the timing so I tore it all back apart even the oil pump off to make sure the timing was on. Now what should I look at next?

 

[mrjasonclifford]

Hey did you figure it out ?
I'm thinking I have the same issue with cam and lifters but haven't pulled the trigger on buying the parts .. I'm not even sure that's my issue I guess I'll have to pull the heads to find out.