Symptoms of a Bad or Failing Cylinder Head Temperature Sensor

The cylinder head temperature sensor is an electronic engine management sensor found on many modern vehicles today. As its name implies, the cylinder head temperature sensor measures the temperature of the engine cylinder head. Temperature is one of the most important engine parameters that the computer uses to calculate timing and fuel for maximum engine performance and efficiency. The cylinder head is similar in purpose to the coolant temperature sensor, however, it is more accurate due to the construction and operation of the sensor. Due to the important role that the coolant head temperature sensor plays in the engine performance calculations, when the cylinder head temperature sensor has an issue, it can negatively affect the performance of the vehicle. Usually a bad or failing cylinder head temperature sensor will produce a few symptoms that can alert the driver of a potential problem that should be serviced.

1. Long cranking time

One of the first symptoms commonly associated with a bad or failing cylinder head temperature sensor is a a long cranking time. The signal provided by the cylinder head temperature sensor monitors an important parameter, and problems with it can cause all sorts of issues, one of them being an extended cranking time when starting the vehicle. If you notice that the vehicle takes a few cranks longer to start then it normally would, then this may be an indicator that the cylinder head temperature sensor may not be giving an accurate reading.

2. Engine performance issues

Another symptom of a potential problem with the cylinder head temperature sensor is engine performance issues. The temperature of the cylinder head is a very important signal used in engine calculations, therefore any issues with the signal can have a dramatic effect on engine performance. A bad or failing cylinder head temperature sensor may cause performance issues such as a decrease in power, acceleration, and fuel economy. The performance issues may be only slightly noticeable in the beginning, but will get worse as time goes on.

3. Check Engine Light comes on

Another symptom of a bad or failing coolant temperature sensor is an illuminated Check Engine Light. If the computer detects an issue with the coolant temperature sensor signal or circuit, it will set off the Check Engine Light in order to alert the driver of the problem. A Check Engine Light can also be caused by a wide variety of other problems so having the computer scanned for trouble codes is highly recommended.

The cylinder head temperature sensor is an important engine management sensor as the signal it provides is a critical one to engine calculations. For this reason, if you suspect that your vehicle’s cylinder head temperature sensor may be having an issue, have the vehicle inspected by a professional technician, such as one from YourMechanic. They will be able to diagnose your issue and replace your cylinder head temperature sensor if needed.


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

(17)

Rating Summary
16
0
0
0
1
16
0
0
0
1

Rodney

36 years of experience
530 reviews
Rodney
36 years of experience
Isuzu Rodeo V6-3.2L - Gas pedal is stuck Inspection - Citrus Heights, California
I give Rodney a 10 big fan .. love your service amazing and cost affordable yeahhhh for your company !!!!
Toyota Pickup - Fuel tank removal - Davis, California
Rodney and Your Mechanic have been a very pleasant surprise. I enjoyed asking questions - and learning from Rodney. I appreciate his way.

Victor

35 years of experience
223 reviews
Victor
35 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

Thomas

12 years of experience
84 reviews
Thomas
12 years of experience
Volkswagen Rabbit L5-2.5L - Vehicle Engine Electrical - Grand Prairie, Texas
10/10!

Miguel

21 years of experience
232 reviews
Miguel
21 years of experience
Kia Optima L4-2.0L Turbo - Vehicle Engine Electrical Inspection - Nutley, New Jersey
I am so happy and grateful for meeting and having Miguel as my mechanic. I'm 64 yrs old and I have experienced many disappointments with car mechanics. Miguel is a blessing. I know when I meet a man with integrity, and has great intelligence. Thank you so much Miguel!!!

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 Long Does an Oil Pump Cover Gasket Last?
In In order for the oil in your car to get to where it needs to go, it will need the right amount of pressure. There are a number of different systems and parts on a car that help to...
How to Keep Your Car From Stalling
When When driving a car, we expect it to get us from point A to point B without any issues. It can become unnerving to drive if your car stalls randomly when coming to a stop, whether it is at...
How to Replace a Clutch Slave Cylinder
Clutch slave cylinders need to be replaced if brake fluid leaks. If gears grind or the clutch won’t, the clutch pedal may be at fault.

Related questions

Car shuts off unexpectedly

Engine stalling while driving is typically caused by a problem with the ignition system. Plus, the fact that you can restart the vehicle after cycling the ignition leads me to believe the problem is electrical. The first thing I would...

Fluctuating oil pressure - 1980 Jeep CJ5

The fluctuating oil pressure indicates an inadequate oil supply (https://www.yourmechanic.com/services/oil-level-is-low-inspection) to the oil pump. It is possible that there may be some trash or sludge buildup on the pickup tube screen limiting the oil supply at the oil pump. An...

1995 Olds Cutlass Cierra LS stalls while driving

There are many potential causes for your concern. Stalling often means the vehicle is getting too much air or not enough fuel. It can also indicate a problem with the ignition (the crankshaft position sensor is a common problem on...

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 (855) 347-2779 · hi@yourmechanic.com