Chevrolet Impala Engine Camshaft Position Sensor Guide (2000-2006)
Fix stalling, hard starts, and Check Engine Lights on your Impala by understanding and choosing the right camshaft sensor.
- A failing camshaft sensor can cause your Impala to stall unexpectedly, which is a major safety risk.
- For this specific part, choosing an OEM brand like ACDelco or Delphi is strongly recommended to ensure reliability and avoid repeat failures.
- The sensor is located behind the power steering pump, making replacement a manageable DIY job in about 1.5 hours for those with basic tools.
- Common trouble codes associated with this failure are P0340 and P0341.
Symptoms of a Failing Camshaft Sensor in a 2000-2006 Impala
When the camshaft position sensor in your Impala starts to fail, it can't send a reliable signal to the engine's computer. This can cause a range of problems, from annoying to dangerous. You will almost certainly get a Check Engine Light with codes like P0340 or P0341.
🎬 Watch: Step-by-step P0341 camshaft sensor replacement for 3.4L engines- Engine Stalling: The most serious symptom is the engine shutting off while you're driving, which can happen unexpectedly at a stoplight or even at speed. This is a major safety concern.
- Hard Starting or No Start: Your Impala may take longer than usual to start, or it might just crank without ever firing up. 🎬 See how a failing sensor causes intermittent starting issues This happens because the computer doesn't know when to send fuel and spark.
- Rough Idle and Misfires: The engine may shake, vibrate, or sound uneven when you're stopped. This is due to incorrect spark timing causing misfires.
- Poor Acceleration: The car may feel sluggish, hesitate, or lack power when you press the gas pedal.
- Reduced Fuel Economy: With the engine running inefficiently due to bad timing, you'll likely notice you're filling up the gas tank more often.
Choosing the Right Aftermarket Camshaft Sensor
For critical electronic parts like a camshaft position sensor on your Impala, brand quality matters. While many aftermarket options exist, owner and mechanic feedback often points toward using OEM or specific high-quality aftermarket brands for the best reliability.
Brand Quality Tiers for 2000-2006 Impala
- OEM / Premium Brands (Highest Reliability): ACDelco and Delphi are the original equipment manufacturers for General Motors. Choosing one of these brands is the closest you can get to the original part that came on your Impala from the factory. They are highly recommended for fit, function, and longevity, helping you avoid replacing the part again prematurely.
- Quality Aftermarket (Good Value): Brands like NGK/NTK, Standard Motor Products (SMP), and Hitachi have a strong reputation for producing reliable sensors that meet or exceed OEM specifications. They are a solid choice if an OEM part isn't available or if you're looking for a balance of quality and price.
- Economy Brands (Budget-Friendly): Brands such as Dorman, Walker Products, and other store brands offer a low-cost alternative. While they can work, some owners report a higher chance of early failure compared to premium brands. These may be suitable for a budget repair, but be aware that you might be sacrificing long-term reliability.
Cost of Replacing the Camshaft Position Sensor
The cost to replace the sensor depends on the brand you choose and whether you do the work yourself or hire a professional mechanic.
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Sensor | $21 - $98 |
| New OEM (ACDelco/Delphi) Sensor | $45 - $110 |
| Shop Labor | $100 - $200 |
| Total Professional Replacement | $121 - $310 |
Frequently Asked Questions (FAQ)
Where is the camshaft position sensor located on a 2000-2006 Impala?
For the common 3.4L and 3.8L V6 engines in this generation, the camshaft position sensor is located on the front of the engine, behind the power steering pump. Accessing it requires removing the serpentine belt and unbolting the power steering pump to move it out of the way.
Can I replace this sensor myself?
Yes, this is a DIY-feasible job for someone with basic mechanical skills and tools. The main challenge is accessing the sensor by moving the power steering pump. 🎬 Watch this walkthrough for replacing the sensor on SS models You will need tools like a ratchet set and a serpentine belt tool. The job typically takes about 1 to 1.5 hours.
What happens if I don't replace a bad camshaft sensor?
Ignoring a failing camshaft sensor can leave you stranded. The engine may refuse to start, or worse, it could stall while driving, which is a significant safety risk. Continued driving can also lead to poor fuel economy and potentially damage other components like the catalytic converter from unburned fuel.
Are there any recalls for this part on my Impala?
As of now, there are no specific recalls from the NHTSA for the camshaft position sensor on the 2000-2006 Chevrolet Impala. However, a special coverage program (14248) was issued for the accelerator pedal position sensor on some 2009-2011 models, which can cause similar reduced power symptoms but is a different issue. Always check for wiring damage, as that can mimic sensor failure.
Helpful Videos
Technical Specifications
OEM Part Numbers: 10456555 213-950
This is a 3-pin Hall Effect sensor that reads the camshaft's position to provide a signal to the ECU for engine timing.
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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.
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