Our service managers are some of the best across the western states, so it's only fair that we get them to share some of their secrets with you to help your team maximize their efficiency.
Maintaining proper oil pressure is important because oil pressure affects the supply of oil throughout the engine. When your oil pressure readings are outside acceptable parameters, here is a list of some common factors that can affect oil pressure readings.
- Faulty oil pressure sensor/circuitry, or high pressure relief valve
- Using the wrong oil; if too heavy, it can increase pressure
- Using the wrong oil; if too light, it can decrease pressure
- Coolant contamination can increase pressure
- Fuel in the oil can decrease pressure
- High levels of soot and sludge can increase pressure
- Low or high oil fill levels
- Plugged oil filter or oil cooler
- Malfunctioning oil pump, suction or transfer tube
- Excessive oil temperature
- Leaking gasket or O-rings
- Damaged or improperly installed piston cooling nozzles
Whenever a vehicle displays low oil pressure, thoroughly investigate the causes until you determine the true culprit. Low oil pressure may lead to oil starvation, which could result in damage to components.
(excerpt from 'Truck Parts & Service' magazine)
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