GMC Acadia Engine Crankshaft Position Sensor Guide (2007-2011)
Having trouble with your Acadia stalling or not starting? Your crankshaft position sensor might be the culprit.
- A 'crank-no-start' condition is the most common symptom of a bad crankshaft sensor.
- A P0335 trouble code directly points to a crankshaft position sensor problem.
- For best results, choose an OEM-equivalent brand like ACDelco or a reputable aftermarket brand like Bosch or Delphi.
- While DIY replacement is possible, be aware that similar symptoms can be caused by stretched timing chains, a more complex repair.
Is Your Acadia Stalling or Running Rough?
If you own a 2007-2011 GMC Acadia, a failing crankshaft position sensor can cause some serious headaches. This small part is vital for engine operation. When it starts to go bad, it can leave you stranded. The most common signs are an engine that cranks but won't start, sudden stalling while driving, a rough idle, and the check engine light coming on. These symptoms often point to this sensor, especially if you get a P0335 trouble code.
🎬 Watch this walkthrough on diagnosing and replacing the sensor.A Note on Timing Chains
The 3.6L V6 engine in these Acadias is also known for stretched timing chains, which can cause similar symptoms and trigger crankshaft/camshaft correlation codes (like P0008, P0016, P0017). If you replace the sensor and the problem continues, the timing chains could be the underlying issue. A mechanic can perform diagnostics to tell the difference.
Choosing the Right Aftermarket Sensor
When it comes to electrical parts like sensors, quality matters. While there are many brands available, they generally fall into a few tiers.
- OEM-Equivalent Brands (ACDelco, Delphi): ACDelco is the original equipment manufacturer (OEM) for GM. Choosing ACDelco or another OEM supplier like Delphi ensures you get a part designed to the original factory specifications for fit and performance. These are often the most reliable choices.
- Quality Aftermarket Brands (Bosch, NGK/NTK, Standard Motor Products, Hitachi): These are well-respected brands in the auto parts world. They produce high-quality sensors that meet or exceed OEM standards and are a solid choice for a replacement. They often provide a good balance of price and quality.
- Value-Oriented Brands (Dorman, Walker, Holstein, etc.): These brands offer a more budget-friendly option. While they can be a good value, quality can sometimes be inconsistent compared to the higher-tier brands. For a critical sensor like this, it's often worth spending a little more for a more recognized name to avoid doing the job twice.
Cost to Replace the Crankshaft Position Sensor
The cost can vary depending on who does the work and the brand of part you choose.
| Item | Estimated Cost |
|---|---|
| New Aftermarket Part | $22 - $156 |
| Shop Labor | $122 - $179 |
| Total Professional Replacement | $181 - $265 |
Frequently Asked Questions
Where is the crankshaft position sensor located on a 2007-2011 GMC Acadia?
The crankshaft position sensor on the 3.6L V6 engine is located on the lower, rear side of the engine block, near the transaxle housing. 🎬 See exactly where the sensor is located on the engine. It is situated behind a small metal heat shield that must be removed for access.
Can I replace this sensor myself?
Yes, this is a DIY-feasible job for someone with moderate mechanical skill. It requires safely lifting the vehicle, removing a heat shield (typically held by a 15mm and 10mm bolt), and then unbolting the sensor itself (a single 10mm bolt). Access can be tight, especially on all-wheel-drive models.
Was there a recall for the crankshaft position sensor on the GMC Acadia?
No specific recall for the crankshaft position sensor was found for the 2007-2011 GMC Acadia during searches of the NHTSA database. There was a recall for other GM vehicles with a different engine that experienced similar issues, but it did not apply to this Acadia model range.
What does the P0335 code mean?
P0335 stands for "Crankshaft Position Sensor 'A' Circuit Malfunction." This code is triggered when the engine's computer loses the signal from the crankshaft position sensor. It's a very common code associated with a failed sensor on these vehicles.
🎬 Watch this important advice before you start the replacement.Helpful Videos
Technical Specifications
OEM Part Numbers: 12615626 12613030
This is a magnetic hall-effect sensor with a 3-pin connector. It is located on the rear of the engine block.
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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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