2018 Ford Transit 150 – Comprehensive Maintenance And Conversion Guide
The 2018 Ford Transit 150 serves as a versatile platform for contractors, weekend adventurers, and DIY camper enthusiasts alike. This guide explores essential maintenance routines, common mechanical pitfalls to avoid, and practical upgrades to maximize your van’s performance and longevity.
Owning a 2018 ford transit 150 is a game-changer for anyone who needs a reliable workspace or a mobile basecamp. You likely appreciate the walk-through cabin and the modular nature of the interior, but maintaining a full-size van requires a proactive approach. This article provides the technical clarity you need to handle repairs and upgrades with confidence.
We will dive deep into the specific engine configurations, known issues like the Giubo flex disc, and step-by-step DIY maintenance tasks. Whether you are hauling motorcycles to the track or building a custom overlander, these insights will help you stay safe on the road. Let’s look at how to keep your Transit in peak condition for years to come.
Understanding the 2018 Ford Transit 150 Engine Options
Ford offered three distinct powerplants for this model year, each with its own maintenance profile. The most common is the 3.7L Ti-VCT V6, a naturally aspirated engine known for its simplicity and long-term durability. It produces 275 horsepower and is generally the easiest for a DIYer to service due to the lack of turbochargers.
For those needing more torque for heavy towing or mountain passes, the 3.5L EcoBoost V6 is the performance choice. This twin-turbocharged engine delivers 310 horsepower and 400 lb-ft of torque. While powerful, it requires stricter adherence to oil change intervals to protect the turbo bearings from heat-related carbon buildup.
The rarest option is the 3.2L Power Stroke Diesel, an inline five-cylinder engine built for high-mileage efficiency. This engine requires Diesel Exhaust Fluid (DEF) and specialized fuel filters. If you own the diesel variant, prioritize high-quality fuel to prevent premature wear on the sensitive high-pressure fuel injectors.
Transmission and Drivetrain Basics
All engines are paired with the 6R80 six-speed automatic transmission. This gearbox is widely regarded as robust, but it benefits significantly from fluid exchanges every 60,000 miles. Avoid the “lifetime fluid” trap if you frequently carry heavy loads or drive in stop-and-go traffic.
The 150 designation indicates the half-ton payload class, though it shares many components with the heavier 250 and 350 models. This means the brakes and suspension components are often overbuilt for the 150’s weight rating. This translates to better-than-average longevity if you aren’t constantly hitting the maximum GVWR (Gross Vehicle Weight Rating).
Critical Maintenance: Keeping Your 2018 ford transit 150 on the Road
Regular maintenance is the only way to avoid the “Transit Limp Mode” that can ruin a road trip. Start with your oil changes; use a high-quality full synthetic 5W-20 for the 3.7L or 5W-30 for the EcoBoost. Change the oil every 5,000 to 7,500 miles, regardless of what the onboard monitor suggests.
Inspect your cowl drains located at the base of the windshield. A common design flaw allows water to bypass the seals and drip directly onto the engine air filter box and rear spark plugs. Ensure these drains are clear of pine needles and debris to prevent water from entering the intake or causing electrical shorts.
Check your battery terminals for corrosion every six months. Because the battery is located under the driver’s seat, many owners neglect it until the van fails to start. Use a 10mm wrench to remove the seat bolts if you need full access to the battery for testing or replacement.
Brake System Inspection
The 2018 Ford Transit 150 uses a heavy-duty braking system that generates significant heat. Inspect the brake pads every 15,000 miles, especially the inner pads which often wear faster than the outer ones. If you feel a pulsation in the steering wheel during braking, your rotors may be warped from excessive heat.
Flush the brake fluid every two years. Brake fluid is hygroscopic, meaning it absorbs moisture from the air over time. This moisture can lower the boiling point of the fluid and cause internal corrosion in the ABS (Anti-lock Braking System) module, leading to expensive repairs later on.
Common Issues and Troubleshooting
One of the most discussed issues for this era of Transit is the driveshaft flex disc, often called the Giubo. This rubber coupling replaces a traditional U-joint at the front of the driveshaft. Over time, the rubber can crack or shred, leading to severe vibrations and potential drivetrain failure.
If you notice a vibration that increases with vehicle speed, crawl under the van and inspect the Giubo. Look for small cracks or “threads” of rubber pulling away from the unit. Ford has issued recalls for this part, so check your VIN (Vehicle Identification Number) with a local dealer to see if you qualify for a free replacement.
Another frequent complaint involves the sliding door alignment. If the door becomes difficult to close or makes a whistling sound at highway speeds, the rollers may be worn or out of adjustment. Clean the door tracks with a rag and apply a small amount of dry silicone lubricant to keep the bearings moving smoothly.
Electrical and Sensor Gremlins
The TPMS (Tire Pressure Monitoring System) sensors in these vans are sensitive to battery age. If you get a persistent warning light despite correct pressures, a sensor battery is likely dying. Most tire shops can scan each wheel to identify the faulty sensor without removing the tire.
Watch for “Check Engine” lights related to the EVAP system. A common culprit is a stuck canister purge valve. This part is inexpensive and located on the top of the engine, making it a simple 15-minute DIY fix that can improve your idle quality and fuel economy.
Suspension and Off-Road Upgrades
If you use your 2018 ford transit 150 for off-grid camping or dirt road travel, the factory suspension may feel soft. The van has a low ground clearance, particularly at the rear shock mounts. Installing a 2-inch lift kit from reputable brands like Van Compass or Quigley can provide the clearance needed for larger tires.
Upgrading to All-Terrain tires (size 245/75R16 is a popular choice with a small lift) significantly improves traction on gravel and snow. Ensure the tires you choose have an “E” load rating. This rating is crucial for supporting the weight of a fully loaded van without overheating the sidewalls.
Consider adding a heavy-duty rear sway bar if you find the van “sways” too much in crosswinds. This is especially helpful for high-roof models that act like a giant sail on the highway. A thicker sway bar keeps the chassis flatter during cornering and improves overall driver confidence.
Protecting the Undercarriage
The oil pan on the 3.5L EcoBoost is made of plastic and can be vulnerable to rocks or debris. Installing an aluminum skid plate is a smart investment for anyone venturing off the pavement. It protects the vital engine components and the transmission pan from impact damage.
Shock upgrades are another high-value modification. Replacing the factory rear shocks with Falcon or Bilstein 4600 series shocks will reduce the “bouncing” effect after hitting a pothole. This makes the ride much more comfortable for passengers in the back or for delicate cargo.
Interior Conversions and Electrical Setup
For many, the 2018 ford transit 150 is a blank canvas for a camper conversion. The first step should always be sound deadening. Apply butyl rubber sheets to the large, flat metal panels to stop them from vibrating like a drum. This makes the van much quieter during long highway drives.
Insulation is the next priority. Use 3M Thinsulate or Havelock Wool rather than rigid foam board. These materials breathe better and won’t squeak against the metal walls as the van flexes during travel. Avoid using “Great Stuff” spray foam, as it can trap moisture against the skin and cause rust.
When planning your electrical system, consider a DC-to-DC charger. This device allows you to charge your “house” batteries using the van’s alternator while you drive. It is more efficient and safer for the vehicle’s electrical system than a simple battery isolator, ensuring your starter battery never gets drained.
Floor and Wall Solutions
The factory floor is often just bare metal or a thin rubber mat. Installing a 3/4-inch plywood subfloor provides a solid base for cabinets and beds. Secure the subfloor using the existing tie-down bolt holes to avoid drilling new holes in the chassis, which can lead to rust points.
Use rivnuts (threaded inserts) to attach furniture to the wall ribs. This is much more secure than using self-tapping screws, which can vibrate loose over time. Rivnuts provide a permanent threaded hole that allows you to bolt and unbolt your interior components as your needs change.
Towing and Payload Capacity
The 2018 Ford Transit 150 has a maximum towing capacity of around 5,000 to 7,500 pounds, depending on the engine and axle ratio. If you plan to tow a trailer, ensure you have the factory tow package, which includes a heavy-duty alternator and a trailer brake controller wiring harness.
Never exceed the Tongue Weight limit, which is typically 10% of the total trailer weight. Too much weight on the hitch will lift the front wheels, reducing steering control and braking effectiveness. Use a weight-distribution hitch if your trailer is near the upper limit of the van’s capacity.
Check your payload sticker on the driver’s side door jamb. This number tells you the total weight of passengers, cargo, and tongue weight the van can safely carry. Overloading the van stresses the wheel bearings and can lead to premature tire failure or broken leaf springs.
Safe Loading Practices
Place the heaviest items on the floor, centered between the axles. This keeps the center of gravity low and prevents the van from becoming “tippy” in emergency maneuvers. Use high-quality ratcheting tie-downs to secure motorcycles or heavy equipment to the factory D-rings.
If you notice the rear of the van sagging significantly under load, consider adding SumoSprings or an “Add-a-Leaf” kit. these components help support the extra weight without ruining the ride quality when the van is empty. They are a cost-effective alternative to full air-bag systems.
Frequently Asked Questions About the 2018 Ford Transit 150
What is the oil capacity for a 2018 ford transit 150?
The 3.7L V6 and the 3.5L EcoBoost V6 both require approximately 6.0 quarts of oil including the filter. Always check the dipstick after filling and running the engine for a minute to ensure the level is correct. The 3.2L Diesel requires roughly 12 quarts of specialized diesel oil.
How often should I replace the Giubo flex disc?
There is no set mileage, but you should inspect it at every oil change. Many owners see signs of cracking between 30,000 and 60,000 miles. If you see deep cracks or missing chunks of rubber, replace it immediately to avoid a catastrophic driveshaft failure.
Can I fit 33-inch tires on my Transit 150?
Fitting 33-inch tires usually requires a significant lift kit (at least 2 inches) and minor trimming of the front wheel well liners and the “pinch weld” behind the tire. Most owners find that 30-inch or 31-inch tires offer the best balance of looks and clearance without major modifications.
Why is my Transit making a clicking noise when I turn?
This is often a sign of a failing CV axle (if equipped with AWD, though 2018 was RWD only) or more likely, a worn-out strut tower bearing. If the noise happens while stationary or moving slowly, have a partner turn the wheel while you listen near the front springs to pinpoint the source.
Maintaining a 2018 ford transit 150 is a rewarding experience for any DIY mechanic or van-lifer. By staying on top of the unique quirks of this platform—like the cowl drains and the flex disc—you ensure your vehicle remains a reliable partner for your adventures. Take the time to do the job right, use quality parts, and don’t be afraid to get your hands dirty. Stay safe and enjoy the freedom of the open road!
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