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how do you troubleshoot a temperature gauge

by Floyd Mitchell III Published 2 years ago Updated 2 years ago
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Part of a video titled Troubleshooting Oil Pressure and Water Temperature Gauges
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If the gauge moves too hot you have a break in the wire or bag connection in the sending unit feedMoreIf the gauge moves too hot you have a break in the wire or bag connection in the sending unit feed wire. If the needle still doesn't move too hot you have a faulty gauge.

What causes a temperature gauge not to work?

The most common cause of faulty temperature readings is a broken coolant temperature sensor (CTS). The part, which is normally located near a vehicle's thermostat near the base of the radiator (consult your owner's manual or repair guide) can get gunked up and fail.

How do you know if your temperature gauge is broken?

On most vehicles, the temperature gauge reads cold until the engine has run for a few minutes. If the temperature gauge still reads cold after the engine has warmed up, the gauge may simply be broken.

What does it mean when the temperature gauge doesn't move?

The most common reason why your car's temperature gauge stays on cold is a faulty coolant temperature sensor. It can also be caused by bad wirings between the cluster or the sensor. In some cases, it can also be a stuck thermostat causing the engine not to heat up properly.

What sensor controls my temperature gauge?

A coolant temperature sensor (CTS) (also known as an ECT sensor or ECTS (engine coolant temperature sensor) is used to measure the temperature of the coolant/antifreeze mix in the cooling system, giving an indication of how much heat the engine is giving off.

How do I know if my engine temperature sensor is bad?

The main symptoms of a bad or failing coolant temperature sensor include:Check Engine Light.Poor Mileage.Electrical Cooling Fans not coming on.Black Smoke from the Exhaust Pipe.Hard Start Condition.Engine Overheats.Poor Idling.Poor Engine performance.

How much does it cost to fix a temperature gauge?

The average cost for an engine temperature sensor replacement is between $150 and $193. Labor costs are between $82 and $105 and parts are between $66 and $88.

Is there a fuse for coolant temperature sensor?

There isn't one per se. There will be a fused wire with voltage to the instrument cluster (your owners manual should indicate which fuse), but the temperature sensor is providing a variable "resistance to ground," which the temperature gauge in the dash is reflecting.

How do I reset my temp gauge?

0:281:05Tips and Tricks: How To Reset Ambient Temperature Sensor?YouTubeStart of suggested clipEnd of suggested clipControl panel push ac and recirculate button at the same time. And keep pressing for 5 to 10 secondsMoreControl panel push ac and recirculate button at the same time. And keep pressing for 5 to 10 seconds. And then release it your ambient temperature sensor will reset i hope this will fix your problem.

Can you drive with a broken temperature gauge?

Can I Still Drive with a Bad Thermostat? The easy answer to this question is no. While your car may be physically able to move and get you from Point A to Point B, you will want to refrain from operating your vehicle. This can lead to more parts of your vehicle being damaged, especially if the engine is overheating.

How do I know if my temperature sensor is working?

1:3710:15How to Test a Coolant Temperature Sensor - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd take a reading for each and then we'll we'll mark down our findings and come to some conclusionsMoreAnd take a reading for each and then we'll we'll mark down our findings and come to some conclusions. About the condition of this old sensor by the time we're done so let's do some testing.

What happens when a temperature sensor goes bad?

The coolant temperature sensor can fail and transmit cold signals to the computer. This action confuses the computer and stimulates it to enrich the fuel mixture unnecessarily. This can cause the fuel mixture to be vibrant such that during combustion, the fuel can't be adequately consumed within the chamber.

Where is the temperature gauge sensor located?

It is most often located close to the thermostat of the cooling system or inside of it. The cooling system is located beneath the air intake pipe and behind the right cylinder.

Can I drive with a faulty temperature gauge?

Can I Still Drive with a Bad Thermostat? The easy answer to this question is no. While your car may be physically able to move and get you from Point A to Point B, you will want to refrain from operating your vehicle. This can lead to more parts of your vehicle being damaged, especially if the engine is overheating.

How do you know if your car is overheating without gauges?

Is there any way to tell if your car is overheating without a gauge?...Here are some of the most common signs that your car is overheating:Hot hood. Feel the top of your hood. ... Ticking noise. Normally oil lubricates your moving engine pieces. ... Leaking coolant. ... Hot smell. ... Steam from the hood. ... Lower engine power.

How do I reset my temp gauge?

0:281:05Tips and Tricks: How To Reset Ambient Temperature Sensor?YouTubeStart of suggested clipEnd of suggested clipControl panel push ac and recirculate button at the same time. And keep pressing for 5 to 10 secondsMoreControl panel push ac and recirculate button at the same time. And keep pressing for 5 to 10 seconds. And then release it your ambient temperature sensor will reset i hope this will fix your problem.

What happens if engine runs too cold?

If you run your engine cold all the time, you'll most likely experience increased fuel consumption across the board. Additionally, you'll find higher amounts of carbon buildup at various parts of the engine. The most damaging effect of feeding a fuel-rich mixture to the engine is excess fuel reaching the exhaust.

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