Engine Crankshaft Position Sensor: A Guide for the 2002-2010 Dodge Ram 1500
Fix stalling, no-start, and rough running issues on your Ram by understanding and choosing the right crankshaft sensor.
- A failing crankshaft sensor is a critical issue that can cause your truck to stall while driving.
- Symptoms include stalling, no-starts, rough idle, and a check engine light with codes like P0335.
- For best results, consider using an OEM (Mopar) or premium aftermarket brand like Delphi or NGK, as these trucks can be sensitive to sensor quality.
- Replacement is a simple DIY job for most owners, typically taking less than an hour with basic tools.
Symptoms of a Failing Crankshaft Sensor in a Dodge Ram
A bad crankshaft position sensor on a 2002-2010 Ram 1500 will cause noticeable problems. The most common issue is the engine stalling unexpectedly while driving or when coming to a stop. You might also have trouble starting the engine, where it cranks but won't fire up. Other signs include a rough idle, engine misfires, poor acceleration, and the Check Engine Light coming on. 🎬 Watch this video to see these common failure symptoms in action. In some cases, the truck may not accelerate past a certain RPM, like 3000 RPM.
Critical Failure Warning
A failing crankshaft position sensor can cause the engine to shut off completely while driving, which is a major safety risk. It is not a part to ignore, as it can leave you stranded without warning.
Choosing the Right Aftermarket Sensor: OEM vs. Aftermarket
When it comes to sensors for Dodge trucks, there is a lot of debate about quality. Many owners and mechanics report that Chrysler vehicles can be picky about electronic parts. Using a low-quality aftermarket sensor can sometimes lead to continued problems or premature failure.
- Premium Brands (OEM/OEM-Quality): Mopar (the original part), Delphi, and NGK/NTK are often recommended for their reliability and are considered to be high-quality choices that are less likely to cause issues. These brands design their sensors to meet or exceed original equipment standards.
- Mid-Tier/Value Brands: Brands like Standard Motor Products (SMP), Dorman, and Holstein offer a balance of price and quality. They are widely available and often come with good warranties, but some owners have reported mixed results.
- Budget Brands: While the lowest-priced options are tempting, they carry the highest risk of being defective out of the box or failing shortly after installation. For a critical part like this, saving a few dollars might lead to more headaches and another replacement job down the road.
Pro Tip: Check the Connector
Before ordering, it's a good idea to visually inspect your old sensor and its electrical connector. Over time, the connector can get brittle from heat or damaged by debris, causing a poor connection even with a new sensor. Also, ensure the new part's connector shape matches the old one exactly.
Typical Replacement Costs
The cost to replace a crankshaft position sensor varies based on who does the work.
| Service Type | Estimated Cost |
|---|---|
| DIY (Part Only) | $17.63 - $149.28 |
| Professional Installation (Parts & Labor) | $187 - $324 |
| OEM Mopar Part Only | $80 - $171 |
Frequently Asked Questions
Where is the crankshaft position sensor located on a 2002-2010 Ram 1500?
The sensor is located on the passenger side of the engine block, near the back where the engine meets the transmission. You can usually see it by looking from underneath the truck, near the oil pan or starter.
🎬 See exactly how to swap the sensor on a 4.7L Ram.Is replacing the crankshaft sensor a difficult job?
No, it's generally considered an easy job for a DIYer with basic tools. It's held in by a single bolt (usually 10mm or 13mm). 🎬 Watch this step-by-step replacement guide for the 5.7L Hemi engine. The main challenge can be reaching it and removing the sensor if it's seized in the engine block, which sometimes requires careful prying or twisting.
Are there any recalls for this part on my Ram?
There have been recalls related to the crankshaft position sensor signal for Ram 1500s, but they primarily affect newer models (2014+) with 3.0L diesel engines, not the 2002-2010 generation. No specific recalls for this part were found for the 2002-2010 model years.
Do I need to do anything after replacing the sensor?
After installing the new sensor, it's a good practice to clear the check engine light codes using an OBD-II scanner. If you don't have a scanner, disconnecting the battery for about 5-10 minutes may also reset the computer.
What happens if the sensor breaks during removal?
The sensor can become brittle and break, leaving the tip stuck in the engine block. If this happens, the broken pieces must be carefully extracted. In some cases, this may require removing the oil pan to access the pieces from below to prevent engine damage.
Helpful Videos
Technical Specifications
OEM Part Numbers: 68569185AA 56027870 56044180AB 56028815AB 56041479AC 56041479AD
The sensor is a 3-pin magnetic hall-effect sensor that reads a tone wheel on the crankshaft. It is typically secured by a single 10mm or 13mm bolt. It's crucial to ensure the replacement has the correct connector shape and length for your specific engine (3.7L, 4.7L, or 5.7L/5.9L).
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 Ram 1500: