2014 Ford F 150 Gas Tank Size – Capacity And Range
The 2014 Ford F-150 typically comes with one of two fuel tank capacities: a standard 26-gallon tank or an optional 36-gallon extended-range tank. Identifying which one sits under your chassis is essential for calculating your towing range and ensuring you purchase the correct replacement fuel pump or straps.
Do you find yourself stopping for fuel more often than your buddies on long hauls? You likely want to know the exact 2014 ford f 150 gas tank size to better plan your next road trip or off-road excursion. Many owners feel frustrated when the “Distance to Empty” gauge doesn’t seem to match their expectations at the pump.
I promise to help you identify your specific tank capacity using simple methods like VIN decoding and physical inspection. This guide previews the differences between cab styles, bed lengths, and how these factors dictate which fuel reservoir Ford installed in your truck.
By the end of this article, you will understand how your fuel system works and how to maintain it for years of reliable service. Let’s dive into the technical details and clear up the confusion surrounding these popular pickups.
The Official 2014 ford f 150 gas tank size Options by Model
Ford designed the 2014 F-150 with versatility in mind, offering different fuel capacities to suit various needs. The most common 2014 ford f 150 gas tank size is the 26-gallon unit, which served as the standard for most 2WD and 4WD configurations.
However, many buyers opted for the 36-gallon extended-range tank, especially those purchasing the FX4, Lariat, or King Ranch trims. This larger tank provides a significant boost in highway endurance, allowing for over 600 miles of travel under ideal conditions.
A rare third option exists for certain fleet or niche configurations, sometimes involving a 30-gallon tank, but these are statistically uncommon. Most DIY mechanics will only ever encounter the 26 or 36-gallon variants when performing repairs or upgrades.
The 26-Gallon Standard Tank
The 26-gallon tank usually fits shorter wheelbase trucks, such as the Regular Cab with a 6.5-foot bed. It provides a balance between weight savings and functional range for daily driving and light-duty tasks.
If you own a base XL or STX trim, this is likely the tank size you have. It is compact, mounted mid-ship on the driver’s side, and uses standard mounting straps that are easily accessible for maintenance.
The 36-Gallon Extended-Range Tank
The 36-gallon tank is a favorite among off-roaders and those who tow heavy trailers. It occupies more space along the frame rail, requiring specific heat shields and longer support straps.
This tank was often bundled with the “Max Trailer Tow Package.” If your truck features a factory integrated trailer brake controller, there is a high probability you have the larger fuel capacity.
How to Identify Your Specific Fuel Capacity
Determining your 2014 ford f 150 gas tank size does not require dropping the tank or using complex tools. You can find this information by looking at your original window sticker if you still have it in the glovebox.
If the sticker is gone, use a free online VIN decoder. Enter your 17-digit Vehicle Identification Number, and the system will pull the original build sheet from Ford’s database, listing the fuel capacity under the “Mechanical” section.
Another practical method involves monitoring your fuel gauge. If you wait until the “Low Fuel” light illuminates and you can pump more than 28 gallons into the truck, you definitely have the 36-gallon version.
Physical Inspection Under the Truck
Slide under the driver’s side of the vehicle with a flashlight to inspect the tank’s physical length. The 26-gallon tank is roughly 40-45 inches long, while the 36-gallon tank extends much further toward the rear axle, measuring over 60 inches.
Check the part number etched or stickered onto the side of the plastic tank. You can cross-reference this number with an OEM parts catalog to confirm the exact volume and compatibility for replacement parts.
Using the Instrument Cluster
The digital display in your dashboard can also provide clues. Navigate to the “Distance to Empty” (DTE) screen immediately after a full fill-up.
If the display shows a range of 500 to 600 miles, you are likely carrying 36 gallons. A range closer to 350 or 400 miles suggests the standard 26-gallon 2014 ford f 150 gas tank size is installed.
Why Gas Tank Size Matters for Off-Roaders and Towing
For off-road enthusiasts, fuel capacity is a safety concern. When navigating remote trails or deep sand, your fuel economy can drop to single digits, making every gallon precious.
The 36-gallon tank offers a “safety buffer” that allows you to explore deeper into the wilderness without carrying heavy, external jerry cans. However, the larger tank also adds about 75 pounds of weight when full, which affects your payload capacity.
When towing a heavy travel trailer, the 2014 F-150 EcoBoost engine can be thirsty. Having the larger tank means fewer stops at cramped gas stations while maneuvering a long trailer.
Weight Distribution and Handling
A full 36-gallon tank adds significant weight to the left side of the truck. You might notice a slight “lean” or different handling characteristics when the tank is topped off compared to when it is nearly empty.
Suspension components like the leaf springs and shocks on the driver’s side may wear slightly faster over a decade of use. Always inspect your bushings if you consistently carry a full load of fuel and heavy gear.
Ground Clearance Concerns
The 36-gallon tank is longer, not necessarily deeper, so ground clearance remains mostly unaffected. However, the increased length provides a larger surface area that could potentially snag on high-centered obstacles.
If you frequently crawl over rocks, consider installing an aftermarket skid plate. These plates protect the high-density polyethylene (HDPE) tank from punctures and abrasions that occur in rugged terrain.
Common Problems with the 2014 Ford F-150 Fuel System
Regardless of your 2014 ford f 150 gas tank size, several common issues can plague this generation of trucks. One frequent culprit is the Fuel Pump Driver Module (FPDM) located on the frame rail above the spare tire.
Corrosion often eats away at the FPDM’s aluminum housing, leading to a “crank but no start” condition. Experienced DIYers often replace this module with an updated version that includes rubber stand-offs to prevent future corrosion.
Another issue involves the “Check Fuel Fill Inlet” message. The 2014 F-150 uses a capless fuel system which can sometimes collect dirt, preventing the flap from sealing correctly and triggering a Check Engine Light.
Fuel Sender Failures
If your gas gauge fluctuates wildly or stays stuck on empty, the fuel sender unit inside the tank has likely failed. This component uses a float and a resistor to communicate the fuel level to the computer.
Because the sender is integrated into the fuel pump assembly, you usually have to replace the entire unit. Knowing your tank size is vital here, as the 26-gallon and 36-gallon pumps use different sending unit calibrations.
EVAP System and Charcoal Canisters
The Evaporative Emission (EVAP) system prevents fuel vapors from escaping into the atmosphere. A clogged charcoal canister can make it difficult to fill the tank, causing the gas station pump to “click off” repeatedly.
Avoid “topping off” your tank after the pump clicks the first time. Forcing extra fuel into the filler neck can saturate the charcoal canister with liquid gasoline, leading to expensive repairs and poor engine performance.
Maintenance Tips for Your F-150 Fuel System
To keep your fuel system healthy, always use high-quality gasoline from reputable stations. This reduces the amount of sediment and moisture that enters the 2014 ford f 150 gas tank size over time.
Change your engine’s air filter regularly to maintain the proper air-fuel ratio. A clogged air filter forces the engine to work harder, which can indirectly put more strain on the fuel delivery system.
Inspect the fuel lines for cracks or leaks during every oil change. Look for damp spots near the frame rails or a persistent smell of raw gasoline, which indicates a breach in the pressurized lines.
Cleaning the Capless Fuel Inlet
Use pressurized air to blow out any dust or debris around the Easy Fuel capless filler neck. If the seal becomes dirty, use a clean rag and a small amount of WD-40 to gently wipe the debris away.
Ford provides a specific funnel located behind the passenger seat or under the rear bench. Only use this funnel if you need to add fuel from a portable container to avoid damaging the internal spring-loaded flaps.
Treating Fuel for Long-Term Storage
If you park your truck for the winter or only use it occasionally, use a fuel stabilizer. Modern ethanol-blended gasoline can absorb moisture and “phase separate” in as little as 30 days.
A stabilizer keeps the fuel fresh and prevents varnish buildup inside the fuel injectors. Run the engine for ten minutes after adding the stabilizer to ensure the treated fuel reaches the entire system.
Step-by-Step: How to Replace a 2014 F-150 Fuel Pump
If your fuel pump fails, you can save hundreds of dollars by doing the job yourself. First, confirm whether you need a pump for a 26-gallon or 36-gallon 2014 ford f 150 gas tank size to ensure the internal float works correctly.
- Relieve Fuel Pressure: Pull the fuel pump fuse or relay and crank the engine until it stalls. This prevents gasoline from spraying when you disconnect the lines.
- Drain the Tank: Use a siphon pump to remove as much gasoline as possible. A full 36-gallon tank weighs nearly 250 pounds, making it dangerous to lower manually.
- Disconnect Lines and Electrical: Unplug the electrical harness and the quick-connect fuel lines. Use a fuel line disconnect tool to avoid damaging the plastic clips.
- Lower the Tank: Support the tank with a floor jack and a wide piece of wood. Remove the bolts holding the metal straps and slowly lower the tank a few inches.
- Remove the Lock Ring: Use a brass punch or a specialized fuel tank lock ring tool to rotate the ring counter-clockwise. Avoid using steel tools that could create a spark near fuel vapors.
- Install the New Pump: Carefully lift the old pump out, noting the orientation. Drop the new pump in with a fresh O-ring seal and tighten the lock ring securely.
Always perform this work in a well-ventilated area away from pilot lights or heaters. Keep a fire extinguisher nearby and wear nitrile gloves and safety glasses to protect yourself from fuel splashes.
Frequently Asked Questions About 2014 ford f 150 gas tank size
Can I swap a 26-gallon tank for a 36-gallon tank?
Yes, but it is a complex project. You will need the larger tank, new mounting straps, and a different fuel pump assembly. Additionally, you must use a tool like FORScan to update the truck’s computer so the DTE and fuel gauge read correctly.
How much does it cost to fill a 36-gallon tank?
At an average price of $3.50 per gallon, a complete fill-up from empty will cost approximately $126. While the “sticker shock” at the pump is higher, you will be stopping half as often as someone with a smaller tank.
Does the Raptor have a different gas tank size?
The 2014 Ford Raptor came standard with the 36-gallon tank. Because the Raptor was designed for high-speed desert running where fuel consumption is extreme, the extended-range capacity was a necessity rather than an option.
Is the fuel tank plastic or metal?
The 2014 F-150 uses a high-density polyethylene (plastic) tank. These are preferred over metal because they do not rust internally and can withstand significant impacts without cracking, which is a major benefit for off-road durability.
Final Thoughts on Your F-150 Fuel Capacity
Understanding your 2014 ford f 150 gas tank size empowers you to be a more prepared owner. Whether you are calculating the cost of a cross-country move or diagnosing a faulty fuel sender, knowing if you have 26 or 36 gallons is the foundation of your fuel system knowledge.
Take a moment this weekend to crawl under your truck or check your VIN. Knowing your equipment is the first step toward becoming a confident DIY mechanic and a savvy traveler. Keep your fuel system clean, watch for those common FPDM issues, and enjoy the long road ahead.
Stay safe, keep your eyes on the trail, and always double-check your range before heading into the unknown!
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