Need help 2003 Dodge ram 2500 5.7 hemi I put a 2008 5.7 hemi in it .will crank no start

[Tim L Mason]

I used the 2008 intake manifold and I am removing the mds .and putting the plugs back in.will the 2008 intake manifold work or do I need 2003 ? I really appreciate it

 

[HemiLonestar]

It will work but you have to plug the EGR. Also need to plug it on the cylinder head. You can't just removed the MDS solenoids, you have to pull the heads and replace the lifters too. If you just pull the solenoids and don't replace the lifters, the lifters on those four cylinders will collapse and you'll be trying to run a four cylinder with a lot of drag.

 

[Tim L Mason]

It will work but you have to plug the EGR. Also need to plug it on the cylinder head. You can't just removed the MDS solenoids, you have to pull the heads and replace the lifters too. If you just pull the solenoids and don't replace the lifters, the lifters on those four cylinders will collapse and you'll be trying to run a four cylinder with a lot of drag.

 

[Tim L Mason]

Thank you for your time.so I have pulled 3 mds solonoids .can I just put them back in and just not plug them in.being my 2003 didn't have mds ?

It will work but you have to plug the EGR. Also need to plug it on the cylinder head. You can't just removed the MDS solenoids, you have to pull the heads and replace the lifters too. If you just pull the solenoids and don't replace the lifters, the lifters on those four cylinders will collapse and you'll be trying to run a four cylinder with a lot of drag.

 

[Tim L Mason]

Sorry Its a work truck for me. Just trying to learn how this works'

 

[HemiLonestar]

Thank you for your time.so I have pulled 3 mds solonoids .can I just put them back in and just not plug them in.being my 2003 didn't have mds ?

Yes, as long as they aren't broken. It will run as normal since there's no harness to them and your PCM couldn't run them anyway. Make sure you plug the EGR ports too. Have you swapped your valve covers and coils? You won't be able to plug your harness into the 08 coils.

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[Tim L Mason]

So if I can buy new solonoids and put back in.i should be fine? Thank you for your time

 

[HemiLonestar]

So if I can buy new solonoids and put back in.i should be fine? Thank you for your time

Guess you broke them taking them out lol...yes. As long as you have good solenoids in there it will run just fine.