Your 2011-2018 Dodge Durango's Engine Oil Pressure Switch: A Complete Guide
Seeing a check engine light or a wild oil pressure gauge? Your oil pressure switch is the likely culprit.
- The P0520 check engine light code is the most common sign of a failed oil pressure switch on your Durango.
- The replacement job is simple on the 5.7L V8 but very difficult and labor-intensive on the 3.6L V6 due to the sensor's location.
- A TSB (18-034-14) exists for 2013-2014 models, confirming the original Mopar part was prone to failure.
- Do not ignore the warning; a bad sensor can't protect your engine from a real loss of oil pressure.
Is Your Durango's Oil Pressure Switch Failing?
A faulty engine oil pressure switch is a very common issue for 2011-2018 Dodge Durango owners, affecting both the 3.6L V6 and 5.7L HEMI V8 engines. The good news is that it's usually the sensor itself that has failed, not a sign of a serious internal engine problem. However, you should not ignore the warnings, as a bad sensor can't alert you if a real oil pressure issue occurs.
Primary Symptoms of Failure
- Check Engine Light: This is the most common sign. The code stored in the computer is almost always P0520 - Engine Oil Pressure Sensor/Switch Circuit. 🎬 Watch: Diagnosing and fixing the P0520 code on a HEMI engine.
- Erratic Oil Pressure Gauge: The gauge on your dashboard may behave strangely. It might be stuck at the maximum reading (like 96 or 100+ PSI), even with the engine off. It could also drop to zero or fluctuate wildly while driving.
- Oil Warning Light: The red oil can symbol may light up or flicker on your dash.
- Oil Leaks: In some cases, the sensor itself can crack or its seal can fail, causing oil to leak down the side of the engine.
Known Issue: Technical Service Bulletin (TSB)
Chrysler issued Technical Service Bulletin (TSB) 18-034-14 in June 2014 for the P0520 code on 2013-2014 Durango models with both 3.6L and 5.7L engines. This bulletin acknowledges a problem with the original sensor and instructs dealers to replace it with a revised part. If you own a 2013-2014 model, this TSB directly relates to this common failure.
Choosing the Right Aftermarket Replacement Part
When shopping for a new oil pressure switch, you have a choice between the original Mopar part and several aftermarket brands. Here’s an honest breakdown for your Durango.
- Mopar (OEM): The original factory sensor is a known failure point, as confirmed by the TSB. While the revised Mopar part should be better, some owners report that even new OEM sensors can fail prematurely. It's a reliable fit, but not necessarily the most durable option given its history.
- Standard Ignition (SMP): Standard Motor Products is a well-regarded aftermarket manufacturer. They are often considered a solid alternative to OEM parts, and many professional mechanics use them. Forum discussions show mixed but generally positive experiences.
- Walker Products: Walker is another established brand that produces a wide range of engine sensors. They state their parts are engineered to meet or exceed OEM specifications and are tested for quality. They are a viable option for this repair.
- Crown Automotive / Store Brands: Brands like Crown or other value-focused store brands can be a gamble. While the price is attractive, some users report issues with quality control and parts failing shortly after installation. For a part with such critical labor involved (especially on the 3.6L), saving a few dollars on the part itself may not be worth the risk of doing the job twice.
Pro Tip: Engine Determines the Difficulty
The cost and difficulty of this repair depend entirely on which engine your Durango has. The part itself is affordable, but the labor can be significant.
- For the 3.6L V6: The sensor is buried deep in the engine valley, underneath the upper and lower intake manifolds. This is a labor-intensive job that takes several hours.
- For the 5.7L HEMI V8: The sensor is located on the lower part of the engine block, near the oil filter. It is accessed from underneath the vehicle and is much easier and faster to replace.
Cost to Replace the Engine Oil Pressure Switch
| Part/Service | Estimated Cost |
|---|---|
| New OEM (Mopar) Part | $60 - $110 |
| New Aftermarket Part | $40.38 - $94.83 |
| Shop Labor (5.7L HEMI) | $100 - $200 |
| Shop Labor (3.6L V6) | $400 - $650+ |
Costs are estimates and can vary by location and repair shop. The significant difference in labor cost is due to the sensor's location.
Frequently Asked Questions
Where is the oil pressure switch on my Durango?
On 3.6L V6 engines, it is located under the lower intake manifold in the valley of the engine. On 5.7L HEMI V8 engines, it is on the side of the engine block, accessible from underneath, typically near the oil filter.
🎬 Watch this walkthrough for replacing the sensor on a 5.7L HEMI.Can I replace the oil pressure switch myself?
If you have a 5.7L HEMI, this is a DIY-friendly job for someone with basic tools and experience working under a vehicle. If you have a 3.6L V6, the replacement is much more complex and requires removing the intake manifolds. This is a job for an experienced DIY mechanic or a professional.
Is it safe to drive with a bad oil pressure switch?
You can drive, but it's not recommended for long. First, immediately check your oil level to ensure it's correct. The biggest risk is that a faulty sensor cannot warn you of an actual, catastrophic loss of oil pressure, which can destroy your engine. Get it fixed as soon as possible.
What tools are needed for the 5.7L HEMI replacement?
You will need a jack and jack stands, a drain pan, a ratchet with extensions, and a special deep socket for the oil pressure sensor (often 27mm or 1 1/16 inch). Some oil will spill when the old sensor is removed.
Should I replace anything else while doing the 3.6L V6 job?
Yes. Since you have to remove the intake manifolds, it is highly recommended to replace the upper and lower intake manifold gaskets at the same time. Many technicians also replace the entire oil filter housing assembly, as it is also a common source of oil leaks and is fully accessible during this repair.
🎬 See how to replace the 3.6L sensor and oil cooler housing.Helpful Videos
Technical Specifications
OEM Part Numbers: 5149062AA 68334877AA
The sensor is a 3-pin electrical switch that threads into the engine block or oil filter housing. A special deep socket (often 27mm or 1 1/16") is required for removal and installation.
We Have This Part in Stock
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.
- Dodge Durango:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Durango's Oil Pressure Switch Failing?
- Primary Symptoms of Failure
- Known Issue: Technical Service Bulletin (TSB)
- Choosing the Right Aftermarket Replacement Part
- Pro Tip: Engine Determines the Difficulty
- Cost to Replace the Engine Oil Pressure Switch
- Frequently Asked Questions
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