2002 dodge Ram 1500 4.7L trouble under the hood

[vmfriendly]

I have recently picked up this 02 Ram quad cab and had the engine rebuilt because it was running rough. Now After I'm driving for a bit, the engine starts shaking and feels like it losses compression and dies. It will not start for about 30 minutes and then it starts back up and I can drive for a few miles and it dies again. the longer it sits, the further I can drive. The head shop checked their work on the engine and could find nothing wrong with block or heads. they said the O2 sensors were clogged and replaced those for me. they also looked at the fuel filter and didn't see anything wrong with it. I need to know what direction to go from here.. Catalytic converter? Battery? Fuel Pump? these things don't sound right since it has to cool to run... Need help in Texas

 

[vmfriendly]

Update on trouble under hood

I have recently picked up this 02 Ram quad cab and had the engine rebuilt because it was running rough. Now After I'm driving for a bit, the engine starts shaking and feels like it losses compression and dies. It will not start for about 30 minutes and then it starts back up and I can drive for a few miles and it dies again. the longer it sits, the further I can drive. The head shop checked their work on the engine and could find nothing wrong with block or heads. they said the O2 sensors were clogged and replaced those for me. they also looked at the fuel filter and didn't see anything wrong with it. I need to know what direction to go from here.. Catalytic converter? Battery? Fuel Pump? these things don't sound right since it has to cool to run... Need help in Texas

Truck is in the Service Dept at a Dodge Dealership... They checked it out and replaced the O2 sensors with Factory O2 sensors... As soon as We picked it up, it shut off again not 5 miles from the shop.. The service advisor tells me that his techs are scratching their heads on what could be the cause of this problem. I'm feeling that the problem lies in the fuel system somewhere, but not feeling confident in the dealer service to find my problem... Any ideas?

 

[rustydagger]

I don't know what it could be. Could be some other sensor somewhere, but I have no idea. I just saw that nobody had replied yet, and wanted to say good luck. I hope you get it figured out soon.

Sent from my SGH-T999 using Tapatalk

 

[MegaMouseGW]

Sounds like when it was rebuilt they might have gotten the timing off. The tone ring must be in the exactly correct spot or your truck will not act right. Plus have them check the harmonic balancer. That might be the cause of the shake.

 

[vmfriendly]

I'll call the service guys monday morning with those suggestions since they seem to be stumped. Thanks

 

[icywhite]

try cam/crank sensor or fuel pump