Buick Enclave Fuel Pressure Sensor Guide for 2008-2017 Models
Having starting or stalling problems with your Enclave? A bad fuel pressure sensor could be the culprit.
- A bad fuel pressure sensor on a 2008-2017 Enclave often triggers a P0191 code and a 'Reduced Engine Power' warning.
- Replacement is labor-intensive, requiring removal of the upper intake manifold to access the sensor on the fuel rail.
- ACDelco and Bosch are top-tier brand choices for reliability, which is important given the high labor cost of replacement.
- Symptoms like hard starting, stalling, and rough idle are common and should not be ignored to avoid being stranded.
Is a Bad Fuel Pressure Sensor Causing Your Enclave's Problems?
If your 2008-2017 Buick Enclave is experiencing issues like hard starting, rough idling, stalling, or a sudden loss of power, a failing fuel pressure sensor is a common suspect. This sensor plays a vital role in the direct injection system of the 3.6L V6 engine. When it fails, it can send incorrect information to your vehicle's computer, disrupting the delicate balance of fuel and air needed for smooth operation. Ignoring these symptoms can lead to poor fuel economy, reduced performance, and potentially leave you stranded.
Key Failure Symptom: Reduced Engine Power
A very common sign of a bad fuel pressure sensor in these Enclaves is the "Reduced Engine Power" message appearing on your dashboard, often accompanied by the Check Engine Light. This is a safety feature where the vehicle's computer limits engine speed to prevent damage when it detects a serious problem, such as erratic fuel pressure. Often, the code P0191 will be stored in the computer's memory.
🎬 Watch: How to diagnose a P0191 check engine codeChoosing the Right Aftermarket Fuel Pressure Sensor
When it's time for a replacement, you don't have to go back to the dealer. Several reputable aftermarket brands offer quality fuel pressure sensors for your Enclave. Here’s a breakdown to help you choose:
Tier 1: OEM Quality & Premium Aftermarket
- ACDelco: As the original equipment (OE) supplier for General Motors, an ACDelco sensor is the closest you can get to the part your Enclave was built with. It ensures a perfect fit and performance matching the factory specifications. For many owners, this is the most trusted choice for reliability.
- Bosch: Bosch is a massive, highly respected German company that is also an OEM supplier for many car manufacturers, including GM. Their sensors are known for quality and durability, often considered equal to ACDelco.
Tier 2: Reputable Aftermarket Brands
- Standard Ignition (SMP): Standard Motor Products is a well-regarded brand in the aftermarket, known for producing reliable sensors and other engine management components. They are a solid choice if you're looking for a balance of quality and price.
- Dorman: Dorman is known for making a wide range of aftermarket parts, sometimes with design improvements over the original. However, quality can sometimes be inconsistent depending on the specific part, so it's often considered a mid-tier or budget-friendly option.
Tier 3: Budget-Friendly Options
- URO Parts & Replacement: These brands focus on providing the most affordable parts. While they can save you money upfront, they may not have the same long-term durability or rigorous quality control as premium brands. They can be a viable option for a budget repair, but the higher difficulty of this specific replacement may make a more reliable part a better investment.
A Note on Fuel Systems
The 2009-2017 Buick Enclave uses a direct injection (SIDI) engine. This system has both a low-pressure fuel pump in the tank and a high-pressure fuel pump on the engine. 🎬 Watch: How to remove the high pressure fuel pump The fuel pressure sensor discussed here is typically the one on the high-pressure side, located on the fuel rail under the intake manifold. Be sure you are ordering the correct part, as there is also a fuel tank pressure sensor for the evaporative emissions (EVAP) system, which is a completely different part.
Estimated Replacement Costs
The cost to replace the fuel pressure sensor can vary significantly based on whether you do it yourself or have a shop perform the labor. The part itself is relatively inexpensive, but accessing it requires removing the upper intake manifold, making labor the biggest cost factor.
| Item | Estimated Cost |
|---|---|
| New Aftermarket Fuel Pressure Sensor | $31 - $122 |
| New OEM (ACDelco) Fuel Pressure Sensor | $85 - $205 |
| Shop Labor | $270 - $400 |
| Total Professional Replacement | $350 - $600+ |
Frequently Asked Questions
Where is the fuel pressure sensor located on a 2008-2017 Enclave?
The fuel rail pressure sensor is located underneath the upper intake manifold, screwed into the fuel rail that supplies the injectors. To access it, the intake manifold must be removed, which is a moderately difficult job.
🎬 See this step-by-step fuel rail pressure sensor replacement walkthroughCan I replace the fuel pressure sensor myself?
If you are an experienced DIY mechanic comfortable with removing the intake manifold and relieving fuel system pressure, this job is feasible. It requires a 27mm socket, preferably a thin-wall one, to remove the sensor. For beginners, this job is likely too complex and should be left to a professional due to the risk of fuel leaks and the need to remove major engine components.
What happens if I don't replace a bad fuel pressure sensor?
Ignoring a failing fuel pressure sensor can lead to a host of problems. You will likely experience poor fuel economy, rough running, and stalling. In some cases, the engine may not start at all. Continuing to drive with incorrect fuel pressure can also put extra strain on other components, like the catalytic converter, potentially leading to more expensive repairs down the road.
Is there a recall for the fuel pressure sensor on the Buick Enclave?
There is no specific recall for the fuel pressure sensor itself. There was a recall for some 2020 models for a faulty fuel pump module, but this does not cover the 2008-2017 year range or the sensor specifically. There are, however, several Technical Service Bulletins (TSBs) related to fuel pressure codes like P0191 that may lead a technician to inspect or replace the sensor.
Helpful Videos
Technical Specifications
OEM Part Numbers: 12627092 12635273 213-4420
Located on the high-pressure fuel rail. Requires a 27mm socket for removal. The system must be depressurized before service.
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.
- Buick Enclave:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is a Bad Fuel Pressure Sensor Causing Your Enclave's Problems?
- Key Failure Symptom: Reduced Engine Power
- Choosing the Right Aftermarket Fuel Pressure Sensor
- Tier 1: OEM Quality & Premium Aftermarket
- Tier 2: Reputable Aftermarket Brands
- Tier 3: Budget-Friendly Options
- A Note on Fuel Systems
- Estimated Replacement Costs
- Frequently Asked Questions
- 🎟️ Get 5% Off