DodgeRamSlT
Junior Member
Ok new to the site but am looking for some insite on my 02 Dodge Ram with a 4.7. Few months ago I lost a valve seat so I pulled the motor and sent the heads out machine shop said out of all these motors he never had an issue with the bottom end in them so I never changed the main bearings (90,000 miles) other than that everything in the motor was changed oil pump, pickup tube (Oring is on tube), motor was clean all oil channels clean. What happens is after the truck warms up and you stop at a light or stop and idle the oil pressure will drop and come back up. Sometimes it drops and doesn’t come back up but there is no knocking like there’s no pressure. I have a mechanical gauge teed into where the pressure switch is and when the truck is warm it reads 25 to 20 psi at a idle. Do you guys think I have a pressure problem or just a switch or gauge problem any insight would help thanks.