Jeep Grand Cherokee A/C Evaporator Temperature Sensor Guide (2011-2019)
Is your Grand Cherokee's A/C acting up? It could be this simple, easy-to-fix sensor.
- Common symptoms of failure are fluctuating A/C temperatures or a complete lack of cold air.
- This is a very common failure point, but it is an inexpensive and easy part to replace yourself.
- An aftermarket sensor provides the same function as OEM for a significantly lower price, making it a great value.
- No special tools are needed for replacement, just basic hand tools to remove a lower dash panel.
Symptoms of a Failing A/C Evap Temp Sensor
When the A/C evaporator temperature sensor in your 2011-2019 Jeep Grand Cherokee starts to fail, you'll notice problems with your air conditioning. The signs are usually pretty clear. Here’s what to look for:
- Fluctuating Temperatures: The most common symptom is air from the vents that cycles between cold and cool or even warm. The sensor sends bad information, causing the compressor to turn on and off at the wrong times.
- A/C Not Blowing Cold: The sensor might fail in a way that tells the system the evaporator is already freezing, so the compressor won't turn on at all. This leaves you with no cold air. 🎬 Watch: Why your Jeep AC blows warm air and how to fix it.
- Compressor Doesn't Engage: If the vehicle's computer gets a faulty signal (or no signal) from the sensor, it may prevent the A/C compressor clutch from engaging as a safety measure.
Choosing the Right Aftermarket Part
For a simple electronic sensor like this, an aftermarket part offers excellent value. The technology is not complex, and quality aftermarket brands produce reliable replacements that meet or exceed original specifications.
- OEM Part: An original Mopar sensor will work perfectly but typically costs more. You're paying for the brand name.
- Aftermarket "Replacement" Part: This is the most cost-effective choice. For a part like the evap temp sensor, which is a common failure item, an aftermarket version performs the same function as the OEM part for a fraction of the price. Given the low cost and simple installation, it's a smart choice for most owners.
Installation: A DIY-Friendly Job
Replacing the A/C evaporator temperature sensor on the WK2 Grand Cherokee is surprisingly easy. You don't need to drain the A/C system or have special tools. It's located on the driver's side of the main HVAC unit, accessible from under the dashboard.
- Disconnect the negative battery terminal.
- Remove the lower instrument panel cover (the silencer panel) below the steering wheel. It's usually held by a few clips or screws.
- Locate the sensor plugged into the side of the black HVAC housing. It's a small, probe-style sensor with a two-wire connector.
- Disconnect the electrical connector, then carefully pull or twist the old sensor out of the housing.
- Install the new sensor, reconnect the wire harness, and re-install the lower dash panel. 🎬 Watch this easy fix for a Jeep Grand Cherokee not blowing cold.
| Part Type | Price Range |
|---|---|
| OEM (Mopar) | $45 - $65 |
| Aftermarket (Replacement) | $21.77 |
| Shop Labor | $85 - $125 |
Frequently Asked Questions
How do I know for sure if my A/C temp sensor is bad?
The best way is to test it with a multimeter. A working sensor will show a specific resistance at a given temperature, and this resistance will change as the temperature changes. However, given the low cost of the part, many owners choose to simply replace it when symptoms appear, 🎬 See how to test and replace the evaporator temperature sensor yourself. as it's a very common point of failure.
Where is the A/C evap temp sensor located on a 2011-2019 Grand Cherokee?
It is located on the driver's side of the HVAC housing, which is under the dashboard. You can access it by removing the lower dash panel (silencer) underneath the steering column.
Are there any recalls for this part on my Grand Cherokee?
No. Searches of NHTSA data and technical service bulletins did not find any recalls or specific TSBs for the A/C evaporator temperature sensor on the 2011-2019 Jeep Grand Cherokee. Any related notifications, like Customer Satisfaction Notification Z33, applied to newer models (2021-2022) and different issues like software updates.
Can I drive my Jeep with a bad A/C temp sensor?
Yes, you can. A bad A/C evaporator temperature sensor will not affect the engine's performance or the vehicle's safety. It will only impact the functionality of your air conditioning system, which can be a major comfort issue, especially in hot weather.
Helpful Videos
Technical Specifications
OEM Part Numbers: 68040532AA
Probe-style sensor with a 2-prong male terminal connector.
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.
- Jeep Grand Cherokee: