2010-2016 Cadillac SRX Fuel Pump: Understanding the E-85 Flex Fuel (FHS) Requirement
This guide covers the common failure symptoms, replacement costs, and the critical compatibility check for the E-85 (FHS) fuel pump required for the second-generation Cadillac SRX.
- This fuel pump only fits the second-generation 2010-2016 Cadillac SRX.
- It is critical to verify your vehicle has the E-85 Flex Fuel option by finding the 'FHS' code on the Service Parts ID label.
- A ticking noise from the engine is normal for the high-pressure fuel pump; a failing in-tank pump typically makes a loud whine from the rear.
- Replacement is moderately difficult but does not require dropping the fuel tank, as the pump is accessible from under the rear seat.
Critical Compatibility Warning: 2010-2016 Generation & E-85 Fuel
This fuel pump assembly fits ONLY the second-generation 2010-2016 Cadillac SRX. It will NOT fit the earlier 2007-2009 models, which use a different fuel system.
Furthermore, this specific pump is for vehicles equipped with the E-85 Flex Fuel option. You must verify your vehicle has this option before purchasing. Using a standard gasoline pump in a Flex Fuel vehicle can lead to premature failure and engine performance issues.
How to Verify Your SRX has the E-85 Flex Fuel Option
The most reliable way to confirm compatibility is to check the Service Parts Identification (SPI) label in your vehicle. This white sticker is typically located in the glove box or in the spare tire well in the cargo area. Look for the three-character code FHS on this label. If you see 'FHS' in the list of codes, your vehicle is a Flex Fuel model and this pump is compatible.
Symptoms of a Failing Fuel Pump
When the in-tank fuel pump begins to fail, it can cause a variety of noticeable issues:
- Engine Cranks But Won't Start: The engine turns over but never fires up because it's not receiving fuel.
- Difficulty Starting: The engine may take longer than usual to start, requiring extended cranking time.
- Stalling, Especially Under Load: The engine may stall unexpectedly, particularly when accelerating, climbing a hill, or when the engine is hot.
- Loss of Power and Hesitation: During acceleration, the vehicle may hesitate, sputter, or feel sluggish as the failing pump struggles to supply enough fuel.
- Loud Whining or Humming Noise: A failing fuel pump motor often makes a loud, high-pitched whining sound from the rear of the vehicle, near the fuel tank. A healthy pump makes a quiet hum.
- Check Engine Light: Insufficient fuel pressure can trigger diagnostic trouble codes, illuminating the check engine light. Common codes include P0087 (Fuel Rail/System Pressure - Too Low).
Known Issues, TSBs, and Recalls
As of late 2023, there are no active safety recalls from the National Highway Traffic Safety Administration (NHTSA) specifically for the in-tank fuel pump on the 2010-2016 Cadillac SRX.
Normal Ticking Noise vs. Failing Pump Whine
Many SRX owners report a distinct ticking sound from the engine bay. According to GM Technical Service Bulletin (TSB) 07-06-04-025I, this is a normal characteristic of the separate, high-pressure fuel pump located on the engine. This ticking sound is NOT an indication that the in-tank fuel pump is failing. A failing in-tank pump typically produces a loud, constant whine from the rear of the vehicle.
Buying a Used Fuel Pump: What to Check
A reliable, used OEM fuel pump can be a smart value compared to expensive new parts or lower-quality aftermarket alternatives. Before purchasing, inspect the following:
- Verify the Part Number: Match the part number on the used unit to the list of known compatible OEM numbers. Do not rely on visual similarity alone.
- Inspect the Housing: Check the plastic housing for any cracks, especially around the hose connections and the top mounting flange. A cracked housing can cause dangerous fuel leaks.
- Check Electrical Connectors: The electrical pins should be clean, straight, and free of any green or white corrosion. Corroded pins indicate moisture intrusion and can cause intermittent electrical problems.
- Examine the Fuel Level Sender: The float arm for the fuel gauge should move freely without binding. The float itself should be intact and not saturated with fuel.
- Look at the Strainer: The fuel strainer (the 'sock' at the bottom) can give clues about the health of the donor vehicle's fuel tank. While it's always recommended to install a new strainer, an extremely dirty or rusty one on the used unit is a red flag.
Pro Tip: An OEM used pump that has been tested and comes with a warranty is often a more reliable choice than a brand-new, non-branded aftermarket pump. The materials and internal components of the original GM part are designed specifically for the vehicle's fuel system and E-85 compatibility.
Cost Comparison
| Part Type | Estimated Price Range | Notes |
|---|---|---|
| New OEM (Dealer) | $1600 - $1800+ | Purchased from and installed by a dealership. Price is for the part only. |
| New OEM (Online) | $260 - $490 | Genuine GM part purchased from an online wholesaler. |
| New Aftermarket | $90 - $570 | Wide range in quality and price from various manufacturers. |
| Used OEM | $50 - $150 | Price from salvage yards or online marketplaces like eBay. |
| Shop Labor | $320 - $475 | Typical independent shop labor cost to install a customer-supplied part. |
Installation Overview & Difficulty
- Difficulty Rating: 3 out of 5 (Moderate)
- Estimated Time: 1.5 - 2.5 hours
- DIY Feasible: Yes, for those with mechanical experience.
The fuel pump in the 2010-2016 SRX is located inside the fuel tank. Fortunately, it can be accessed through a panel under the rear seats, so the entire fuel tank does not need to be dropped. The process involves disconnecting the battery, removing the rear seat cushion, opening the access panel, disconnecting fuel lines and electrical connectors, and carefully removing the pump assembly from the tank.
Warning: Working with the fuel system is dangerous. Always work in a well-ventilated area, disconnect the battery, and have a fire extinguisher rated for gasoline fires nearby. Relieve fuel system pressure before disconnecting any lines to avoid fuel spray.
Frequently Asked Questions (FAQ)
Are there two fuel pumps on the 2010-2016 Cadillac SRX?
Yes. The V6 direct injection engines in these models use a two-pump system. There is a low-pressure electric pump in the fuel tank (this part) and a high-pressure, mechanical pump driven by the engine's camshaft.
What happens if I use a non-Flex Fuel pump in my E-85 SRX?
Standard gasoline fuel pumps may not have components designed to withstand the corrosive properties of high-concentration ethanol fuels like E-85. This can lead to rapid deterioration of seals, hoses, and internal pump components, causing premature failure.
My engine is making a ticking noise. Is my fuel pump bad?
A ticking noise from the engine bay is likely the normal operation of the high-pressure fuel pump, as noted in a GM service bulletin. A failing in-tank fuel pump typically makes a loud, continuous whining or humming noise from the rear of the vehicle by the fuel tank.
Do I need to replace the fuel filter at the same time?
The fuel pump module assembly includes an integrated fuel strainer (sock). There is no separate, serviceable in-line fuel filter on these vehicles. It is highly recommended to clean the inside of the fuel tank of any debris when replacing the pump.
OEM Part Numbers
- 13578368
- 19121652
- 19151143
- 19181827
- 19417963
- 88967138
Technical Specifications
OEM Part Numbers: 13578368 19121652 19151143 19181827 19417963 88967138
In-tank low-pressure fuel pump module for E-85 Flex Fuel (FHS) vehicles.
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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.
- Cadillac SRX:
- 🛍️ Shop This Part
- Critical Compatibility Warning: 2010-2016 Generation & E-85 Fuel
- How to Verify Your SRX has the E-85 Flex Fuel Option
- Symptoms of a Failing Fuel Pump
- Known Issues, TSBs, and Recalls
- Normal Ticking Noise vs. Failing Pump Whine
- Buying a Used Fuel Pump: What to Check
- Cost Comparison
- Installation Overview & Difficulty
- Frequently Asked Questions (FAQ)
- OEM Part Numbers
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