Engine Coolant Temperature Sensor Guide for 2010-2015 Chevrolet Camaro
An essential guide to diagnosing, choosing, and replacing the engine coolant temperature sensor on your 5th Generation Camaro.
- A faulty ECT sensor can cause a Check Engine Light, erratic temperature gauge readings, constant fan operation, and poor fuel economy.
- For best results and to avoid repeat failures, use an OEM brand like ACDelco or a premium aftermarket brand like Delphi.
- Replacement is a manageable DIY task on V8 models but can be more difficult on V6 models due to sensor location.
- Ignoring a bad sensor can lead to engine overheating, which may cause catastrophic engine damage.
Is Your Camaro's ECT Sensor Failing?
A bad Engine Coolant Temperature (ECT) sensor can cause a surprising number of problems with your 2010-2015 Camaro. Because the sensor's reading affects so many engine functions, a false signal can lead to poor performance and even potential damage if ignored. Recognizing the signs early can save you from more expensive repairs down the road.
Common Symptoms of a Bad ECT Sensor
🎬 Watch: 8 common symptoms of a failing coolant sensor- Check Engine Light: This is often the first sign. The computer will log fault codes like P0117 (low input), P0118 (high input), or P0128 (thermostat rationality).
- Erratic Temperature Gauge: The gauge on your dashboard might swing wildly, stay stuck on cold, or show the engine is overheating when it's not.
- Cooling Fans Run Constantly: As a fail-safe, if the computer loses the temperature signal, it may run the cooling fans at full speed to prevent overheating.
- Poor Fuel Economy: If the sensor incorrectly tells the computer the engine is always cold, the system will run a rich fuel mixture, wasting gas.
- Rough Idle and Poor Performance: An incorrect fuel mixture can cause the engine to idle poorly, hesitate, or feel down on power.
- Black Smoke from Exhaust: A very rich fuel mixture from a bad sensor signal can result in unburned fuel exiting through the exhaust as black smoke.
Choosing the Right Aftermarket Sensor
When it comes to critical sensors like the ECT, quality matters. While many brands are available, they generally fall into a few tiers for your Camaro.
Tier 1: OEM & Premium Brands
These are the most recommended choices for reliability and fit. They are manufactured to the same specifications as the original part that came in your Camaro.
- ACDelco: As the original equipment manufacturer (OEM) for General Motors, ACDelco is the go-to choice for a guaranteed fit and function. Forum members and mechanics often recommend sticking with ACDelco to avoid intermittent issues that can sometimes occur with other brands.
- Delphi: Delphi is another top-tier OEM supplier known for high-quality electronics. Their sensors are built to OE specifications and are a reliable alternative to ACDelco.
Tier 2: Reputable Aftermarket Brands
These brands are known for producing quality parts that offer a good balance between price and performance.
- Bosch: A well-respected German manufacturer with a strong reputation in automotive electronics.
- NGK/NTK: While famous for spark plugs, NTK (the sensor division of NGK) produces high-quality sensors that are often trusted by professionals.
- Standard Motor Products (SMP): A long-standing brand in the aftermarket that offers reliable sensors.
Tier 3: Value Brands
This category includes brands like Four Seasons, Walker Products, and others. While they are the most budget-friendly, their long-term reliability can be inconsistent. For a critical sensor like the ECT, it's often worth spending a little more for a Tier 1 or Tier 2 brand to avoid having to do the job twice.
Pro Tip: Some Camaro owners have reported that after replacing a faulty ECT sensor, their issues returned, only to be solved by replacing the thermostat as well. If you are replacing your sensor, consider replacing the thermostat at the same time, especially on higher-mileage vehicles.
🎬 Watch: How to replace the thermostat on your CamaroCost of Replacing a 2010-2015 Camaro ECT Sensor
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Sensor | $10.62 - $50.56 |
| New OEM (ACDelco) Sensor | $25 - $60 |
| Shop Labor | $75 - $150 |
Frequently Asked Questions (FAQ)
Where is the ECT sensor located on a 2010-2015 Camaro?
The location differs between the V6 and V8 engines. On the V8 (SS models), the sensor is located on the driver's side of the engine, toward the front, screwed into the cylinder head. On the V6 (LS, LT models), it is more difficult to access. It is located on the driver's side of the engine, but further back and lower down, often near the oil dipstick tube and sometimes covered by a foil heat shield. Some V6 engine designs may require removing the intake manifold for access.
Can I replace the ECT sensor myself?
Yes, this is a DIY-feasible job for most home mechanics, especially on the V8 models where access is easier. 🎬 See this step-by-step replacement walkthrough for Camaro SS models The V6 is more challenging due to the sensor's location. The basic process involves letting the engine cool completely, disconnecting the battery, unplugging the sensor's electrical connector, and unscrewing the old sensor with a deep socket (usually 19mm). Be prepared for some coolant to spill.
Do I need to drain the coolant to replace the sensor?
You don't need to drain the entire system, but some coolant will leak out when you remove the sensor. To minimize the mess, have the new sensor ready to screw in quickly. Place a drain pan underneath to catch the spill and top off the coolant reservoir with the correct type of coolant after you are finished.
What happens if I ignore a bad coolant sensor?
Driving for an extended period with a bad ECT sensor is not recommended. It can lead to poor fuel economy, carbon buildup in the engine, and failed emissions tests. Most critically, if the sensor fails to trigger the cooling fans, your engine could overheat, leading to severe and expensive damage like a warped cylinder head or blown head gasket.
Helpful Videos
Technical Specifications
OEM Part Numbers: 12608814 213-4514 55591401
The ECT sensor is a thermistor, meaning its electrical resistance changes with temperature. It typically has a two-wire connector and is screwed into a coolant passage in the cylinder head.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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