Oil pressure is the continues physical force that circulates a viscous liquid derived from petroleum on the moving parts of an internal-combustion engine. Proper oil pressure is critical for longevity for most internal-combustion engines. If the supply of oil pressure is diminished the engine can be severely damaged. When oil pressure drops too a low oil pressure warning light activates on the instrument panel.
On most vehicles low oil pressure is often an indication of a bad oil pump, defective oil pressure sending unit, faulty warning light or a defective pressure gauge. This article discusses possible causes and corrections for low oil pressure on a 2001 Dodge Ram 1500 2500 or 3500 pickup truck.
LOW OIL PRESSURE
- Low oil level. Check the trucks engine oil level and refill if necessary.
- Faulty oil pressure sending uint. Reinstall a new oil sending unit. Refer to download repair manual for removal and installation procedures.
- Obstructed oil filter. Remove and install a new oil filter.
- Worn oil pump. Replace the entire oil pump assembly with a new assembly.
- Diluted or thin oil. Change the motor oil to correct viscosity. Refer to the repair manual for oil viscosity and type.
- Excessive bearing clearance. Refer to bearing specifications chart in the download repair manual for correct bearing clearance tolerances.
- Oil pump relief valve stuck. Remove the oil pump relief valve and inspect it for debris or grime, clean and reinstall.
- Oil pump suction tube obstructed, bent or broken. Inspect the oil pump suction tube and either clean or replace it, whichever is necessary.
- Oil pump cover cracked or warped. Install a new oil pump.
It’s highly recommended you refer to the download factory repair manual when performing repairing a low oil pressure issue. The manual contains critical specifications, advanced troubleshooting guides and additional repair procedures.