Engine Coolant Temperature Sensor Guide for the 2016 Chevrolet Cruze Limited
Everything a Cruze Limited owner needs to know about a failing engine coolant temperature sensor.
- The 2016 Cruze Limited has two separate coolant temperature sensors; diagnose the correct one before buying.
- Symptoms include a check engine light, constant fan operation, and false overheating warnings.
- Replacement is a simple DIY job, typically taking less than 30 minutes with basic tools.
- ACDelco and Delphi are the recommended brands for reliability and OEM fit.
Understanding a Failing Coolant Temperature Sensor
A faulty Engine Coolant Temperature (ECT) sensor on your 2016 Cruze Limited can cause a range of confusing symptoms. Because the sensor provides critical data to the engine's computer, a bad signal can make the car behave as if it's overheating when it's not, or vice-versa. This can lead to incorrect engine adjustments that affect performance and fuel efficiency. It's a common failure point on these vehicles, but thankfully, it's a straightforward and affordable repair.
Important Note for 2016 Cruze Owners
The 2016 model year was a transition for the Chevrolet Cruze. Two versions were sold: the all-new second-generation Cruze and the Cruze Limited, which was a continuation of the first-generation body style. This guide is specifically for the 2016 Cruze Limited. Parts are generally not interchangeable between the two models.
Symptoms of a Bad ECT Sensor
If your ECT sensor is failing, you'll likely notice one or more of the following issues:
- Check Engine Light: This is the most common sign. The ECM will log a fault code when it receives an illogical signal from the sensor.
- "AC Off Due to High Engine Temp" Message: The car's computer may disable the air conditioning to reduce engine load, even if the engine isn't actually hot. 🎬 Watch: How to fix the 'AC Off' error message.
- Cooling Fans Running Constantly: If the sensor incorrectly tells the ECM the engine is overheating, the cooling fans may run at full speed whenever the car is on. 🎬 See why your radiator fan stays on all the time.
- Erratic Temperature Gauge: The gauge on your dashboard might shoot up to hot immediately after a cold start, or it may not move from cold at all.
- Poor Fuel Economy: An incorrect temperature reading can cause the ECM to enrich the fuel mixture, leading to more gas being burned than necessary.
Choosing the Right Aftermarket Sensor
For a critical sensor like the ECT, quality matters. While many brands are available, they generally fall into a few tiers for your Cruze Limited.
Tier 1: OEM & Premium Aftermarket
Brands: ACDelco, Delphi
ACDelco is the original equipment manufacturer (OEM) for General Motors. Choosing an ACDelco part guarantees a perfect fit and the same performance as the sensor your car was built with. Delphi is also a major OEM supplier for many brands, including GM, and their parts are widely considered to be of equivalent quality. For peace of mind and guaranteed compatibility, these are the top choices.
Tier 2: Reputable Aftermarket Brands
Brands: Standard Ignition (SMP), Hella, Holstein
These brands have a long-standing reputation for producing reliable aftermarket parts. They engineer their components to meet or exceed OEM specifications. A sensor from one of these brands is a solid choice if you're looking for a balance between price and quality. They are a dependable alternative to the premium brands.
Tier 3: Budget-Friendly Options
Brands: Four Seasons, Motorad, True Tech, Vemo
These brands focus on providing the most affordable options. While they can get your car back on the road, there can be inconsistencies in quality and longevity compared to higher-tier brands. For a sensor that plays a key role in engine management, it's often worth spending a few extra dollars for a part from a more established manufacturer.
Cost to Replace the ECT Sensor
| Part Type | Cost Range |
|---|---|
| New Aftermarket | $12.32 - $48.93 |
| New OEM (ACDelco) | $19.99 - $37.72 |
| Shop Labor | $50 - $100 |
| Total Cost (DIY) | $12.32 - $48.93 |
| Total Cost (Shop) | $62 - $149 |
Pro Tip: Your Cruze Limited Has Two Coolant Sensors
The 1.4L and 1.8L engines in the 2016 Cruze Limited have two coolant temperature sensors. One is located on the engine itself (in the thermostat housing or water outlet), and the other is located in the radiator. It is crucial to diagnose which sensor has failed before ordering a replacement, as they are different parts. Common OEM part numbers are 55591401 for the engine sensor and 55591002 or 213-4688 for the radiator sensor.
Frequently Asked Questions
Where is the ECT sensor located on the 2016 Cruze Limited?
There are two sensors. The main engine sensor is typically located on the thermostat housing on the driver's side of the engine. The second sensor is located on the radiator itself, usually on the side tank. A quick search for your specific engine (1.4L Turbo or 1.8L) will show the exact locations.
Is replacing the ECT sensor a difficult job?
No, this is a very DIY-friendly job. For the sensor on the engine, it is held in by a small clip. You simply disconnect the electrical connector, pull the clip, and swap the sensor. 🎬 Watch this step-by-step guide to replacing the engine sensor. Some coolant will leak out, so it's best to do it on a cold engine and have a drain pan ready. The entire process usually takes less than 30 minutes.
Do I need any special tools?
You will need basic tools like a flathead screwdriver to release the retaining clip and possibly a pair of pliers. No other special tools are required for the sensor replacement itself. You will also need a drain pan to catch any spilled coolant.
Are there any recalls for this issue?
No, there are no specific recalls for the engine coolant temperature sensor on the 2016 Chevrolet Cruze Limited. While some other recalls exist for this model year, they are unrelated to the cooling system sensors.
Helpful Videos
Technical Specifications
OEM Part Numbers: 55591401 55591002 213-4688 12641073
The 2016 Cruze Limited uses two distinct sensors. One is for the engine coolant circuit, located in the thermostat housing/water outlet. The other is for the radiator outlet. They are not interchangeable. Both are thermistor-type sensors held in place by a retaining clip.
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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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