Skip the auto shop - Our mechanics make house calls

Q: Oil pressure at 0

asked by on

The oil pressure is reading 0. It does not need oil.

A: Oil pressure in a vehicle can still be at z...

Oil pressure in a vehicle can still be at zero even if it is full of oil. The oil pressure is developed by the oil pump located inside the engine. If the pump veins cannot develop enough pressure to lubricate the engine, internal engine damage can occur. Oil pumps usually go bad over time and start by developing pressure when the engine is cold and as the engine gets hot, the pressure starts to drop. Eventually, it will not develop anymore pressure. The other possibility is a bad oil pressure sending unit. This is a device that actually sends the signal to the oil pressure gauge. There is no way to test the unit, so the normal diagnosis is removing the unit and installing a gauge in its place to verify the engine is actually developing correct pressure. This rules out the pump and only leaves the sending unit. Consider using the services of YourMechanic to help you diagnose your oil pressure issue and make the necessary repairs. I suggest that you avoid driving until this is checked. Low oil pressure will very quickly damage your engine.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: i get a check engine code p0351

Generally, this code points to a malfunction in the primary or secondary ignition coil circuit. Your vehicle has one ignition coil that sends spark to a distributor which then sends the ignition spark to the cylinders in a specific order....

Q: Looks like it will start but it doesn't

Hi, thanks for writing in. This is easily diagnosable because the fault is not intermittent. Based on the symptoms you are describing, you have either a fault in the ignition system or the fuel system. There are some simple tests...

Q: Truck idled, ran rough, fluid streaming from motor

Hello there, thank you for asking about your car. It's highly unlikely that brake fluid entered the combustion chamber. The noise also would not be caused by using synthetic oil instead of conventional oil. As for the oil pressure, I'm...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.