Symptoms of a Bad or Failing 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.


Next Step

Schedule Vehicle Engine Electrical Inspection

The most popular service booked by readers of this article is Vehicle Engine Electrical Inspection. Once the problem has been diagnosed, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. YourMechanic’s technicians bring the dealership to you by performing this job at your home or office 7-days a week between 7AM-9PM. We currently cover over 2,000 cities and have 100k+ 5-star reviews... LEARN MORE

SEE PRICING & SCHEDULING

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Recent Vehicle Engine Electrical Inspection reviews

Excellent Rating

(18)

Rating Summary
17
0
0
0
1
17
0
0
0
1

Victor

36 years of experience
230 reviews
Victor
36 years of experience
Chevrolet G20 V6-4.3L - Vehicle Engine Electrical - Albuquerque, New Mexico
he took the time to find out what was going on with the electrical system, I appreciate that

Kenneth

21 years of experience
870 reviews
Kenneth
21 years of experience
Ford Taurus V6-3.8L - Vehicle Engine Electrical - Los Angeles, California
Kenneth performed excellent, conscientious service.

Johnny

34 years of experience
392 reviews
Johnny
34 years of experience
Mitsubishi Endeavor V6-3.8L - Vehicle Engine Electrical Inspection - Carmichael, California
Friendly and thorough service! Didn't take him long to determine my issue wasn't electrical but lack of compression. He was able to identify my issue rather quickly and saved me the hassle of having to have my vehicle towed to a service shop.

Chris

23 years of experience
2372 reviews
Chris
23 years of experience
Dodge Ram 2500 L6-5.9L Turbo Diesel - Vehicle Engine Electrical - Perris, California
Chris arrived early and had our problem solved in a short time. Great service!!

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

Related articles

How to Replace a Brake Booster Vacuum Sensor
The brake booster vacuum pressure sensor is a vital part of power brake operation. A Check Engine Light or a hard brake pedal are signs of failure.
How to Replace a Cylinder Head Coolant Temperature Sensor
Signs of coolant temperature sensor failures include sluggish acceleration, hard starting, and a Check Engine or Service Engine Soon Light.
How to Replace a Fuel Meter Assembly
The fuel gauge assembly indicates your fuel level. The fuel gauge will no longer work if there is an application of reverse charge or corrosion.

Related questions

How Do Oil Filters Get Dirty?
Oil filters have a very important, yet really dirty job to perform. I don’t think even Mike Rowe (http://www.discovery.com/tv-shows/dirty-jobs/) would want to tackle the dirty job of an oil filter (https://www.yourmechanic.com/article/how-do-oil-filters-work). Before we talk about the oil filter, let’s talk...
Serious oil leak
Hello. Although head gaskets can leak oil, it is not a common cause of oil leaks. More common areas of oil leaks are the oil pan gasket, valve cover gasket, oil filter cap, or the oil filter housing gasket. Before...
Oil level is low.
Your engine may use up about a liter of oil for every 2000 km you drive so you should add oil until you see that the oil comes up to the top full mark. Running the engine low on oil...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com