Ram 3500 (2011-2019) Manifold Absolute Pressure Sensor: A Complete Guide
Running rough, losing power, or seeing black smoke? Your Ram 3500's MAP sensor might be the problem.
- A faulty MAP sensor on a Ram 3500 commonly causes black smoke, power loss, and poor fuel economy.
- The leading cause of failure is soot buildup from the EGR system, and cleaning the sensor is a valid first troubleshooting step.
- Replacement is a simple, DIY-friendly task that takes less than 30 minutes with basic tools.
- For reliability, choose an OEM Cummins part or a top-tier aftermarket brand like Delphi, NGK, or Standard Motor Products.
Is Your Ram 3500 MAP Sensor Failing?
On the 6.7L Cummins engine, the MAP sensor is prone to getting clogged with soot and oil vapor from the Exhaust Gas Recirculation (EGR) and crankcase ventilation systems. This buildup is the most common cause of failure. When the sensor can no longer read pressure accurately, it sends bad information to your truck's computer, leading to noticeable performance problems. Watch for a combination of these symptoms, as they are strong indicators of a failing MAP sensor.
🎬 Watch a breakdown of common symptoms of a bad MAP sensor.Symptoms of a Bad MAP Sensor
- Black Smoke from Exhaust: The engine running too rich (too much fuel, not enough air) is a classic sign.
- Loss of Power & Poor Acceleration: The truck may feel sluggish and unresponsive because the ECM cannot properly manage the fuel and turbo boost.
- Rough Idle: An unstable idle or engine surging can occur due to the incorrect air-fuel mixture.
- Decreased Fuel Economy: When the engine computer gets bad data, it can't optimize fuel delivery, leading to more trips to the pump.
- Check Engine Light: A faulty MAP sensor will often trigger the check engine light with codes such as P0106, P0107, or P0108. 🎬 See how to test the circuit when facing a P0106 code.
Pro Tip: Try Cleaning it First
Because the most common issue is soot buildup, you might be able to restore function by cleaning the sensor. Carefully remove the sensor and spray it with an electronics or MAF sensor cleaner. Do not use brake cleaner, as it can damage the sensor's components. Let it dry completely before reinstalling. 🎬 Watch this guide on cleaning and maintaining your TMAP sensor. If symptoms persist, replacement is necessary.
Choosing the Right Aftermarket MAP Sensor
While an OEM Cummins sensor is always a safe bet, high-quality aftermarket parts can offer reliable performance at a better price. For a critical engine sensor like this, it's wise to avoid the cheapest options and stick with reputable brands.
- Top-Tier Aftermarket (Recommended): Brands like Delphi, NGK (NTK), and Standard Motor Products (Standard Ignition) have a strong reputation for producing sensors that meet or exceed original equipment (OE) specifications. They are engineered for durability and accurate readings, making them a reliable choice for your Ram.
- Standard-Tier Aftermarket: Brands such as Crown Automotive, Spectra, Walker Products, and Holstein offer a more budget-friendly alternative. While they can get the job done, for a part that directly impacts engine performance and reliability on a turbo diesel, spending a little more for a top-tier brand is often a good investment.
Technical Service Bulletin (TSB) for 2018 Models
For some 2018 Ram 3500 trucks, Ram issued TSB 18-061-20 REV. A. This involves a software update for the engine computer to retune the 'Engine Manifold Pressure Misfire Monitor'. If you have a 2018 model and are experiencing issues, it's worth checking with a dealer to see if this software update applies to your vehicle, as it may resolve the problem without needing a new sensor.
Cost of Replacing a Ram 3500 MAP Sensor
The cost can vary depending on the part you choose and whether you do the work yourself. Replacement is a very simple DIY job for most owners.
| Item | Price Range |
|---|---|
| New Aftermarket Sensor | $26.32 - $135.95 |
| New OEM (Cummins) Sensor | $95 - $125 |
| Shop Labor | $45 - $90 |
| Total (Shop Replacement) | $140 - $215 |
Frequently Asked Questions (FAQ)
Where is the MAP sensor located on the 2011-2019 Ram 3500?
The MAP sensor is mounted directly on the intake manifold (also called the intake horn) on the driver's side of the 6.7L Cummins engine. It is easily accessible, held in by one or two small bolts or a twist-lock mechanism, and has a single electrical connector.
Is replacing the MAP sensor a difficult job?
No, this is one of the easiest sensors to replace on the engine. The job requires basic hand tools, takes less than 30 minutes, and is very DIY-friendly. You simply disconnect the electrical plug, remove the mounting screw(s), and carefully pull the old sensor out. Installation is the reverse of removal.
Are there any recalls for the MAP sensor?
No, there are no specific safety recalls for the MAP sensor itself on the 2011-2019 Ram 3500. The issues are considered maintenance-related. However, a TSB for a software update exists for some 2018 models that relates to how the computer uses the sensor's data.
What is the OEM part number for the MAP sensor?
For 2011-2018 Ram 3500 models with the 6.7L Cummins, the most common OEM part number is Cummins 5698455, which superseded earlier numbers like 2897333. The 2019 model year may use a different sensor. Always verify the part number for your specific vehicle before ordering.
Helpful Videos
Technical Specifications
OEM Part Numbers: 5698455 2897333 68002434AA 4921322 68282012AA
This is a 4-wire Temperature Manifold Absolute Pressure (TMAP) sensor that mounts to the intake manifold. It measures both air pressure and temperature.
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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.
- Ram 3500:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Ram 3500 MAP Sensor Failing?
- Symptoms of a Bad MAP Sensor
- Pro Tip: Try Cleaning it First
- Choosing the Right Aftermarket MAP Sensor
- Technical Service Bulletin (TSB) for 2018 Models
- Cost of Replacing a Ram 3500 MAP Sensor
- Frequently Asked Questions (FAQ)
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