Acura RL Engine Oil Pressure Switch Guide (2005-2012)
Is your oil light flickering? This guide covers the common oil pressure switch issues for the 2005-2012 Acura RL.
- A faulty oil pressure switch is a known issue for the 2005-2012 Acura RL, confirmed by Acura TSB 09-012.
- Symptoms include a false oil pressure light or a "Check Engine Oil Level" message when the oil level is actually full.
- This is a DIY-friendly repair that can be done in under an hour with a 24mm deep socket.
- Choose a quality aftermarket brand like Beck Arnley or Standard Ignition over budget options for better reliability.
Is Your Acura RL Oil Light On? Don't Panic Yet.
A red oil pressure light on your dashboard is one of the most serious warnings a car can give. However, on the 2005-2012 Acura RL, a faulty oil pressure switch is a common and relatively minor issue that can trigger this light, causing unnecessary worry. Before assuming the worst, it's important to understand the symptoms and solutions related to this specific part.
Warning: Check Your Oil Level First!
If your oil light comes on, immediately and safely pull over. Turn off the engine and check your oil level using the dipstick. If the oil level is low, the warning is real. Do not drive the car with low oil pressure, as it can destroy the engine in minutes. If the oil level is full, the problem is very likely a faulty sensor.
Known Issues for 2005-2012 Acura RL
Acura released a Technical Service Bulletin (TSB 09-012) that directly addresses this problem for 2009-2010 RL models, though the issue is common across the entire 2005-2012 generation. The TSB notes that a faulty engine oil pressure switch can cause the "Check Engine Oil Level" message to appear on the info display or cause the low oil pressure light to turn on, even when the oil level is perfectly normal. The official fix is to replace the switch.
🎬 Watch this step-by-step guide on replacing the oil pressure switch.Choosing the Right Aftermarket Oil Pressure Switch
When replacing this sensor, you have a choice between OEM and several aftermarket brands. For a critical sensor like this, quality matters. A cheap, poorly made switch can fail quickly, putting you right back where you started or failing to warn you of a real oil pressure problem.
- Premium Aftermarket (e.g., Beck Arnley, Standard Ignition): These brands have a strong reputation. Beck Arnley often sources parts from the original OEM suppliers, so you may be getting the same quality part in a different box. Standard Ignition (SMP) is also a well-regarded choice for sensors, though some users have reported mixed experiences. These are your most reliable aftermarket options.
- Economy Aftermarket (e.g., URO Parts, other value brands): While the low price is tempting, brands like URO Parts have more inconsistent reviews for electronic components. There's a higher risk of premature failure or even the part breaking during installation. For the small price difference, it's usually worth choosing a higher-tier brand for peace of mind.
Cost to Replace an Acura RL Oil Pressure Switch
| Part/Service | Estimated Cost |
|---|---|
| New OEM Part | $50 - $80 |
| New Aftermarket Part | $11 - $60 |
| Shop Labor | $100 - $160 |
| Total Professional Replacement | $150 - $240 |
Pro Tip: Replacing this switch is a common DIY job. The part is accessible after removing the passenger-side front wheel and a plastic splash guard. With a 24mm deep socket and an extension, you can save over $100 in labor.
🎬 See how to quickly swap the sensor to fix the light.Frequently Asked Questions (FAQ)
Where is the oil pressure switch located on the 2005-2012 Acura RL?
The main engine oil pressure switch is located on the front of the engine, near the oil filter and crankshaft pulley. To access it, you will need to jack up the passenger side of the vehicle, remove the front wheel, and take off the inner fender splash shield.
Can I replace the oil pressure switch myself?
Yes, this is a DIY-friendly repair for those with basic tools. The job requires safely lifting the vehicle, removing the wheel and a splash shield, unplugging the sensor, and unscrewing it with a 24mm deep socket. The new switch threads in, gets torqued, and the connector is plugged back in. The whole process typically takes less than an hour.
What are the symptoms of a bad oil pressure switch?
The most common symptoms are a flickering or solid red oil pressure light on the dash, or a "Check Engine Oil Level" message on the center display, especially when the engine oil level is full. You might also notice an oil leak coming directly from the sensor itself. In some cases, it can trigger the check engine light with code P0522.
🎬 Watch a demonstration of fixing the check engine oil level warning.Is it safe to drive with a bad oil pressure switch?
It's risky. While the problem is likely just the sensor, you can't be 100% sure without checking. If the switch is faulty and not reading correctly, it won't be able to warn you if a real, engine-destroying oil pressure problem occurs. It is best to get it replaced as soon as possible.
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Technical Specifications
OEM Part Numbers: 37240-RDM-A01 37240-R72-A01 37240-PT0-014
Connector: 1-Pin. Thread Size: Varies, requires visual confirmation or matching to OEM part number. Tool Required: 24mm deep socket or wrench.
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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.
- Acura RL:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Acura RL Oil Light On? Don't Panic Yet.
- Warning: Check Your Oil Level First!
- Known Issues for 2005-2012 Acura RL
- Choosing the Right Aftermarket Oil Pressure Switch
- Cost to Replace an Acura RL Oil Pressure Switch
- Frequently Asked Questions (FAQ)
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