Q: Oil pump and oil sending housing unit

asked by on

How can these 2 things, the oil pump and oil sending unit, go bad on a 2012 Dodge Grand Caravan? I went to the same place to get an oil change for 2 years

My car has 95913 miles.
My car has an automatic transmission.

Hi there, thanks for writing in. The oil pressure gauge monitors the oil pressure in one of the main oil ways near to the pump and filter. There is a hole tapped into the engine block with a sensor (for electric gauges) or an oil pipe take-off (for mechanical gauges). Mechanical gauges work by literally forcing the needle around the dial under pressure from the engine. Electric gauges, on the other hand, work by using the sensor screwed into the engine block to produce a variable resistance that affects the amount of current passing through the circuit containing the gauge and sensor. When either of these applications fail (yours is likely an electrical gauge), this will cause an incorrect oil pressure reading in the dash which can be very fatal to an engine if not caught very quickly. The oil pump is what circulates the oil throughout the engine. This can fail for a variety of reasons. Fortunately, you have caught these before any major engine damage has happened. If you’d like help getting these units replaced, I would recommend having an expert from YourMechanic come to your home or office to perform the replacements.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Oil pump and oil sending housing unit

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: Q: Oil light on

Hello. This could be an indication that your oil pump needs to be replaced. However, it could also indicate that your engine is going bad and needs to be replaced. I would recommend that you have a certified technician, like...

Q: What does the Front Passenger Air Bag status light mean?

The front passenger air bag status light shows up on the center of the dash, not in the gauge cluster. It’s designed to tell you several different things. Primarily, this light tells you if the passenger side air bag...

Q: Rotors scored pads good

Assuming scored rotors means there are likely "hot spots" or high and low spots in the rotors, this will cause brake pads to wear unevenly and to wear out prematurely. Depending on the severity of the rotors, it may be...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.