Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. Symptoms of a Bad or Failing Oil Temperature Sensor

Symptoms of a Bad or Failing Oil Temperature Sensor

Oil Temperature Sensor

The oil temperature is a vital part to keeping your engine running smoothly. The oil temperature should be a few degrees warmer than the coolant. If the oil temperature is too high, problems can arise. When you first start your vehicle on cold mornings, let the car idle for about five minutes until the oil gets a chance to warm up. This way, your engine will run more efficiently and live much longer. The oil temperature sensor is an important piece to know when your oil is warmed up when working properly. There are a few symptoms to watch out for when your oil temperature sensor starts to go bad.

False readings

One way to know your oil temperature sensor is failing is if you get false readings due to the electrical signal output by the temperature sensor. These are indicated by the temperature gauge going from cool to hot in one minute. It takes a couple of minutes for the oil to heat up, so the temperature sensor should reflect that. Furthermore, if the oil temperature sensor spikes and the coolant temperature remains constant, this is another sign the oil temperature sensor is going bad. The oil temperature gauge can also have erratic readings that jump around, indicating a failing sensor.

Gauge does not move

If the oil temperature sensor does not move at all, it has most likely failed and needs to be replaced by a professional. The mechanics at YourMechanic provide an oil temperature sensor replacement service that is affordable, and will have your gauge back to normal.

Causes of failure

There are a few things that can cause the oil temperature sensor to fail, one of them is wiring damage. Over time, if the wires become worn or are shorted out, the sensor will fail and will need to be replaced along with the wiring. In addition, corrosion can cause oil temperature sensor to fail or read incorrectly. In some cases, a mechanic can remove this corrosion and save the part, but in other cases the entire sensor will need to be replaced.

Complicated electrical systems

Replacing an oil temperature sensor is best left to the professionals at YourMechanic because of the wiring and electricity involved. If the sensor is installed incorrectly and your engine runs hot without you knowing it, this can cause major damage to your engine and can eventually ruin it.

If your oil temperature sensor gauge does not move or you are getting false readings, the oil temperature sensor in your vehicle may need to be replaced. YourMechanic makes getting repairs to your oil pressure sensor easy by coming to your home or office to diagnose or fix issues. You can book a service online 24/7. YourMechanic’s qualified technicians are also available for any questions that may arise.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Still not sure about your car's issue?
Diagnose your car
What kind of issue are you experiencing?
Brakes are squeaking
Car is not starting
Car is overheating
Car is shaking (vibrating)
Fluids are leaking
Heating and A/C
Smoke or steam is coming out of the car
Warning light is on
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

How to Find the Keyless Code on a Ford Explorer or Mercury Mountaineer
Many Ford Explorers and Mercury Mountaineers were manufactured with an option known as the Ford keyless entry keypad. Some models refer to it as SecuriCode as well. It...
Insurance Requirements for Car Registration in Kentucky
The Kentucky Transportation Cabinet requires that all drivers in Kentucky carry liability automotive insurance, or “financial responsibility” in order to operate a vehicle legally and maintain vehicle...
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...


Related questions

Q: Getting a "Drivetrain Malfunction" light on a 2011 535i. Had a sensor replaced for almost $400 and that didnt fix the issue. wha

Hello. The drive train malfunction light indicates the computer has detected an issue with the vehicle's drive train or transmission. This can be caused by many things, ranging from a bad sensor, to the need for a new transmission. As...

Q: Abnormal oil loss

Blue smoke from the tailpipe, either at idle or under power, is an indication that the engine is consuming oil internally. Common causes for oil consumption are oil getting past the piston rings into the combustion chamber or oil leaking...

Q: 1st and 2nd I lost 3rd and 4th actually goes into neutral in 3rd and 4th

I don't think it has to do with your speedometer. The speedometer cable that goes to your speedometer has a sensor on the opposite side but the sensor isn't big enough to cause damage to your transmission. I would check...