Skip the auto shop - Our mechanics make house calls

Q: The oil gage reads full over, even with the engine not running but ignition on.

asked by on

The oil gage is reading full over (80 lbs), even with the ignition on but engine not running. It is about 1 quart low on oil. Seems to run as normal. I turned the engine on and off a couple of times and it still acts the same. The gage drops to 0 lbs with the ignition off. Thanks Ralph White, Neoga, IL

My car has 78000 miles.
My car has an automatic transmission.

The most common cause of the problem can be the oil pressure sender unit needs replaced and and the filter screen below it needs removed and cleaned. When the pressure sensor is removed you should have the oil pressure tested with a manual gauge to see if the pressures are stuck at 80 psi indicating problems with oil pump check valve stuck. If pressures are within specifications then proceed with sensor replacement and screen cleaning.

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!
  1. Home
  2. Questions
  3. The oil gage reads full over, even with the engine not running but ignition on.

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: My car shuts off while driving

Hello. Engine stalling can be caused by a wide variety of issues. Faults within the fuel, ignition, or engine management systems can all cause the vehicle to experience stalling. A few common causes of stalling are a bad idle air...

Q: Vehicle undriveable

Hi. The yellow lamp is likely the Traction Control System warning. It would make sense because the traction control system is directly related to the ABS and brake system. It sounds like your Escape has some braking and stability issues....

Q: Car starts then immediately stalls out.

Hi there. Check the engine oil level and make sure that it's full. Top off the oil if it's low and recheck to see if the engine is still stalling. The symptoms that you describe are as if the engine...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...