Step by step guide on how to repair an automotive engine with high oil pressure,
this information pertains to all internal combustion engines.
Difficulty Scale: 4 of 10
Tools and Supplies Needed
Begin with the car on level ground, in park with the emergency brake set. Step 1 - When an engine is cold, the oil pressure will be at its highest point. If the oil pressure gauge is constantly in the highest position, there is a problem.
Step 2 - The oil pressure sender is responsible
for supplying feedback data to the gauge or computer. If this sensor fails it can
give a false reading causing the gauge to read at its highest point.
Step 3 - The oil pump pressure relief valve is
designed to allow pressure to bleed off. If this valve gets stuck it can force the
pump to work at full pressure. (Engine oil pan removed and turned over.)
Oil Pump Relief Valve
Helpful Information High engine oil pressure can cause severe engine damage such as oil pump drive and oil filter failure. Once these conditions occur the engine will rapidly start to wear and ultimately fail.
- External oil gauge
- Screwdriver set
- Wrench set
- Socket set
- Flashlight
- Protective eye wear and gloves
Begin with the car on level ground, in park with the emergency brake set. Step 1 - When an engine is cold, the oil pressure will be at its highest point. If the oil pressure gauge is constantly in the highest position, there is a problem.
High Oil Pressure
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Oil Pressure Sender
Oil Pump Relief Valve
Helpful Information High engine oil pressure can cause severe engine damage such as oil pump drive and oil filter failure. Once these conditions occur the engine will rapidly start to wear and ultimately fail.
Article first published 2016-02-04
