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Temperature

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P0516 OBD-II Trouble Code: Battery Temperature Sensor Circuit Low
Diagnostic Diagnostic Trouble Code (DTC): P0516 P0516 code definition The PCM stores the P0516 code when the battery temperature sensor circuit has reported a temperature reading that is lower than the preset specifications from the manufacturer. What the P0516 code...
How to Diagnose a Cooling System Problem
You may be driving down the road or sitting at a stop light when you first notice the temperature gauge in your...
How to Replace an Evaporator Temperature Sensor (Switch)
The air conditioning system has an evaporator temperature sensor that fails when there is no cold air or the air conditioning is inconsistent.
3 Essential Things to Know About Your Car’s Temperature Gauge
A car temperature gauge shows how hot the engine is. If the temperature gauge reads high, your car could be leaking coolant or have a bad water pump.
How to Replace the Oil Temperature Sensor on Most Cars
Oil, as well as the oil temperature sensor, is crucial to the engine lubrication system. A bad sensor can lead to leaks and poor vehicle performance.
How to Replace a Manifold Temperature Sensor
Signs of a failing manifold temperature sensor include rough idling and a rough running engine, and may result in a failed emissions test.
How to Replace an Ambient Temperature Sensor
The ambient temperature sensor monitors the car's temperature inside and out. This sensor allows the AC to maintain comfortable cabin temperatures.
Symptoms of a Bad or Failing Evaporator Temperature Sensor (Switch)
Common signs include lack of cold air coming from AC, temperature fluctuations, and the AC compressor not activating.
Is it Safe to Drive With a Fever?
A A fever is considered a higher than normal body temperature. A fever can be caused by viruses, bacteria, drugs, toxins, or fungi. Normally a fever comes with other symptoms depending on the type of illness that causes the fever....
P0495 OBD-II Trouble Code: Fan Speed High
Diagnostic Diagnostic Trouble Code (DTC): P0495 P0495 code definition The P0495 code is stored when the PCM has detected a voltage reading that is too high from the electric cooling fan control circuit. What the P0495 code means In order...
How to Replace a Coolant Temperature Sensor
The coolant temperature sensor switch is not working if the engine emits black smoke. The switch may have failed if the car gets poor fuel economy.
What Does the Coolant Temperature Warning Light Mean?
The coolant temperature warning light turns on when your engine is sensed to be too hot and is at risk of damage from overheating.
How to Replace a Car Battery Temperature Sensor
The battery has a battery temperature sensor that can fail if the Check Engine Light comes on, the battery voltage is low, or the RPM curve surges.
How to Replace an Exhaust Gas Recirculation (EGR) Temperature Sensor
Exhaust gas recirculation (EGR) temperature sensors monitor the EGR cooler's operation. One is on the exhaust manifold and one is near the EGR valve.
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 an Air Cleaner Temperature Sensor
The air cleaner temperature sensor allows the computer to adjust engine timing and air/fuel ratio. A rough idle or "engine lag" are signs of failure.
Symptoms of a Bad or Failing Battery Temperature Sensor
Common signs include engine surging, low battery voltage, and an illuminated Battery Light.

Related questions

Where is my coolant sensor

Hello, thanks for writing in about your Jeep Cherokee. The coolant temperature sensor for the gauge on your Cherokee should be on the back of the driver's side cylinder head. If you need some assistance with this, consider YourMechanic, as...

The car is overheating

The normal opening temperature of the thermostat is between 85c and 102c. Your car is running in the middle and this is good. You should not be overheating as this is the normal operating range for your engine. If you...

Temperature gauge going up and down

Hi there. The issue is the thermostat. It is sticking about half way and not opening all the way up or it has a lot of calcium buildup. I recommend replacing the thermostat (https://www.yourmechanic.com/services/thermostat-replacement) and flushing the coolant out (https://www.yourmechanic.com/services/cooling-system-flush)...

Temperature gauge fluctuates

Hi there, thanks for your question. Temperature gauge fluctuation could be due a faulty temperature gauge or a faulty thermostat (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-thermostat). If tested with a radar gun, this would be an external temperature source for testing the temperature, which would...

Temp gauge goes up and down

Hi there. The temperature sensor is the device used to determine the estimated engine coolant temperature reading. The sensor itself is not always perfect. This device sends a signal to the computer and in some cases, the instrument cluster as...

Engine rattling noise

Hello. It sounds like a pulley for the belts is going bad. The water pump (https://www.yourmechanic.com/services/water-pump-replacement), alternator (https://www.yourmechanic.com/services/alternator-replacement), power steering pump (https://www.yourmechanic.com/services/power-steering-pump-replacement), or A/C compressor (https://www.yourmechanic.com/services/ac-compressor-replacement) could have a problem as well, that is causing the noise you hear. The...

Cooling fan not coming on

The electric radiator cooling fans are powered through relays, a fuse, and a temperature switch. The fan motors themselves should be tested (the fan motors can be independently powered, on or off the car, to see if they work properly)...

Car overheats while idling

It sounds like you may have a problem with rust an scale build up in the engine. This build up may have worn the impeller on the water pump and this is why it only overheats at low engine RPMs....

Ac not cold

Quite often, issues with maintaining cold air flow (https://www.yourmechanic.com/article/why-won-t-my-ac-blow-cold-air) with an air conditioner are due to a commonly overlooked issue - charging AC refrigerant. Although most vehicles (like your Toyota 4-Runner) have a closed-loop AC, when a leak occurs and...

My 2008 murano runs smooth, but shuts off after the temperature gauge reaches close to half

Hello, thank you for writing in. If the vehicle is not actually overheating, then the coolant temperature sensor may be failing. The car may be prematurely entering into a safety mode meant to keep your engine from destroying itself. Overheating...

Truck overheating

Check to see if the cooling fan clutch (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-fan-clutch) is fully engaging when the engine is heating up. You can test this by putting a tissue in front of the radiator or condenser to see if the fan flow is...

Temperature gauge not working?

You would need to check the temperature sender unit to see if it got coolant in the connector or wire got shorted somehow. Disconnect the sensor and see if the gauge acts differently. If it does then replace the sensor...

Temperature gauge goes up and down

Hello. If the coolant temperature gauge is constantly fluctuating then the most common cause of this is a bad thermostat. If the thermostat is sticking or not opening and closing right then this will occur. It can also be a...

Temperature Gauge

With most any other vehicle, your diagnosis would be dead on, congratulations! In your case, the problem is most likely the thermostat. With this Audi engine, the Audi engineers were more clever, there is only a single coolant temperature sensor,...

Overheating

Hello, thanks for writing in about your 2010 Chevrolet HHR. For an issue like this, you may want to look at the fans while the car is on to ensure they are turning on and off. Also, it may be...

Cooling fans

This can be caused by a number of things such as low coolant levels (https://www.yourmechanic.com/services/top-off-coolant), a faulty thermostat (https://www.yourmechanic.com/services/thermostat-replacement), or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature...

Code p0128

Code P0128 (https://www.yourmechanic.com/article/p0033-obd-ii-trouble-code-turbo-charger-or-supercharger-bypass-valve-control-circuit-by-john-nelson) is engaged specifically when the engine itself does not get to operating temperature in a specified time period. The only things that can cause this problem is an issue with the thermostat (https://www.yourmechanic.com/services/thermostat-replacement), head temp sensor, and...

Car gets hot

This can be caused by a number of things such as low coolant levels (https://www.yourmechanic.com/services/top-off-coolant), a faulty thermostat (https://www.yourmechanic.com/services/thermostat-replacement), or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature...

Why does my thermostat not read anything on dash board 1994 Dodge Ram

Hello. If the gauge does not move at all even when the vehicle is turned off and on then the gauge is bad. If the gauge cycles but then does not move when the vehicle is turned off and on...

My car misfires when it's cold al so idling rough

Hello, thank you for writing in. The vehicle may be having one of several issues including clogged fuel injectors, poor compression (metal expands when hot), any of your air intake sensors, or a vacuum leak. The valves and lifters can...

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