2017 Ford Transit 350 Xlt – Maintenance, Reliability, And Owner’S
The 2017 ford transit 350 xlt is a powerhouse of versatility, offering massive passenger capacity and robust engine options. This guide covers essential maintenance, common mechanical quirks, and practical DIY tips to keep your van running smoothly for years.
Owning a full-size van requires a different mindset than maintaining a standard sedan or SUV. You are managing a vehicle designed for heavy loads, high mileage, and consistent performance under pressure.
Whether you use your 2017 ford transit 350 xlt for a large family, a commercial shuttle service, or the foundation of a custom camper conversion, understanding its unique needs is vital. We will explore the technical details that keep this machine on the road.
This article provides actionable insights into engine care, drivetrain safety, and interior longevity. By the end, you will have the confidence to handle basic repairs and identify when it is time to call in a professional technician.
Understanding the 2017 ford transit 350 xlt Powertrain Options
The 2017 model year offered three distinct engines, each with its own maintenance profile. Choosing the right fluids and parts depends entirely on which block sits under your hood.
The 3.7L Ti-VCT V6 serves as the base engine for many fleet vehicles. It is a naturally aspirated workhorse known for simplicity and long-term durability in high-heat environments.
For those needing more grunt, the 3.5L EcoBoost twin-turbo V6 provides significantly more torque. While it offers excellent towing power, the turbochargers require strict adherence to oil change intervals to prevent carbon buildup.
The 3.5L EcoBoost Advantage
If your van has the EcoBoost, you possess a high-performance engine in a utility body. This engine uses direct injection, which can lead to carbon deposits on the intake valves over time.
Use a high-quality full synthetic oil to protect the turbo bearings. Heat is the enemy here, so ensure your cooling system is always topped off with the correct orange-colored Motorcraft coolant.
The 3.2L Power Stroke Diesel
The 3.2L I-5 Diesel is rarer but offers incredible fuel efficiency for long-distance hauling. It requires Diesel Exhaust Fluid (DEF) and regular monitoring of the particulate filter.
Short trips are the primary weakness of the diesel variant. Ensure you take the van on highway runs frequently to allow the exhaust system to perform a regeneration cycle.
Essential Maintenance for the 350 Chassis
The “350” designation indicates a heavy-duty chassis capable of handling significant weight. This means your suspension, brakes, and tires face more stress than a standard 150 or 250 model.
Owning a 2017 ford transit 350 xlt means you must prioritize your stopping power. The heavy curb weight, combined with up to 15 passengers, can cook standard brake pads quickly.
Inspect your brake pads every 10,000 miles. Look for uneven wear, which often indicates a sticking caliper slide pin, a common issue in humid or snowy climates.
Oil Change Procedures and Specs
Changing the oil on a Transit is straightforward for a DIYer. You will need a 15mm socket for the drain plug and a sturdy oil filter wrench for the FL-500S filter.
Always check the oil capacity in your owner’s manual. The 3.5L and 3.7L engines typically take about 6 quarts, but always verify with the dipstick after filling.
Never overfill the crankcase. Excess oil can cause aeration, leading to poor lubrication and potential engine damage during steep climbs or descents.
Transmission Care and the 6R80
The 6-speed 6R80 automatic transmission is generally reliable but benefits from a fluid “drain and fill” every 60,000 miles. Ford claims longer intervals, but experienced mechanics disagree.
Check for leaks around the transmission bulkhead connector. This plastic sleeve can degrade and leak Mercon LV fluid, which may cause shifting issues if the level drops too low.
The Infamous Giubo Flex Disc Issue
One of the most critical safety items for this specific year is the driveshaft coupling, often called the Giubo or flex disc. This rubber component connects the transmission to the driveshaft.
When inspecting a 2017 ford transit 350 xlt, look for cracks or fraying in this rubber disc. Ford issued recalls for this part because a total failure can cause the driveshaft to detach.
If you feel a vibration under your seat during acceleration, stop driving immediately. Inspect the coupling for missing chunks of rubber or visible threading.
Upgrading to a Universal Joint
Many owners choose to replace the flexible coupling with a traditional universal joint (U-joint) kit. This is a common modification for those who carry heavy loads or travel off-road.
A U-joint conversion offers more robustness and eliminates the recurring need to replace the rubber disc. Consult a specialized drivetrain shop if you decide to make this swap.
Signs of Imminent Failure
Listen for a “clunk” when shifting from Park to Drive or Reverse. This often signals excessive play in the flex disc or the rear differential mounting bushings.
Early detection saves money. Replacing a rubber disc is cheap, but replacing a floor pan damaged by a flailing driveshaft is incredibly expensive.
Tires and Suspension for Heavy Loads
The 350 series requires Load Range E tires. Never install standard passenger car tires on this van, as they cannot handle the high pressure or the vertical load.
Maintain tire pressure according to the door jamb sticker, not the “max psi” on the tire sidewall. Usually, the rear tires require significantly higher pressure than the fronts.
The 2017 ford transit 350 xlt is sensitive to alignment. If the van pulls to one side, get an alignment immediately to prevent “cupping” on your expensive heavy-duty tires.
Shock Absorber Longevity
Factory shocks often begin to feel “floaty” around 50,000 to 70,000 miles. If the van bounces repeatedly after hitting a speed bump, the dampers are worn out.
Upgrading to heavy-duty shocks, such as those from Bilstein or Koni, can dramatically improve stability. This is especially important for high-roof models prone to crosswind sway.
Leaf Spring Maintenance
Check the rear leaf springs for cracks or flattened arches. If you consistently carry 15 passengers, the rear end may sag over time, affecting your headlight aim and braking balance.
Adding an “add-a-leaf” kit or an airbag suspension system can help level the load. This is a popular DIY project for those building out camper vans.
Interior and Electrical Troubleshooting
The XLT trim features more electronic comforts than the base cargo models. This includes rear climate control, power mirrors, and the SYNC 3 infotainment system.
A common complaint involves the rear HVAC system. If the rear vents blow only hot or only cold air, the blend door actuator has likely failed behind the interior panels.
Accessing these actuators is a tedious DIY task but saves hundreds in labor costs. Use a plastic trim tool to avoid scarring the large interior plastic moldings.
Managing the Dual Battery System
Many XLT models come with dual batteries located under the driver’s seat. These batteries are wired in parallel to provide extra cranking power and reserve capacity.
If one battery fails, it will often drain the healthy one. Always replace these batteries as a matched pair to ensure longevity and proper charging balance.
Check the battery terminals for corrosion every six months. Because they are tucked under the seat, many owners forget they exist until the van refuses to start.
Sliding Door Adjustment
The massive sliding door can become difficult to open or close if the tracks are dirty. Clean the upper and lower tracks with a rag and apply a small amount of white lithium grease.
If the door “pops” out but won’t slide, the center roller assembly might be worn. This is a common wear item that can be replaced with basic hand tools in about thirty minutes.
Safety and Off-Road Considerations
While not a dedicated 4×4, many owners take their Transits onto fire roads or camping spots. The 2017 ford transit 350 xlt has decent ground clearance but long overhangs.
Be cautious of the rear “departure angle.” The long body can easily scrape the rear bumper or hitch when exiting a steep driveway or navigating a rutted trail.
For better off-road traction, consider a Limited Slip Differential (LSD) if your van wasn’t equipped with one from the factory. It makes a massive difference on wet grass or gravel.
Wind Sensitivity and Safety
The high-roof versions of the Transit act like a giant sail. Ford’s Side Wind Stabilization technology helps, but you must remain alert during gusty conditions.
Always keep both hands on the wheel when passing semi-trucks. The aerodynamic “push” can be startling if you are not prepared for the lateral movement.
Check your roof seals and the third brake light housing for leaks. Water ingress is a known issue that can lead to mold in the headliner or electrical shorts in the rear lights.
Frequently Asked Questions About the 2017 Ford Transit 350 XLT
What is the seating capacity of the XLT 350?
The XLT 350 is most commonly configured for 12 or 15 passengers. The 15-passenger version usually features an extended body (EL) to provide extra luggage space behind the last row.
Which engine is best for towing?
The 3.5L EcoBoost is the superior choice for towing. Its twin-turbocharged setup provides peak torque at low RPMs, which is essential for moving heavy trailers without straining the engine.
How do I reset the oil life monitor?
Navigate the steering wheel menu to “Settings,” then “Vehicle,” and “Oil Life Reset.” Hold the “OK” button until the system confirms the reset to 100 percent.
Does this van have a timing belt or chain?
Both the 3.5L and 3.7L V6 engines use timing chains. These are designed to last the life of the engine, provided you perform regular oil changes to keep the tensioners lubricated.
Can I convert the rear seats into a bed?
While the factory seats do not fold flat, they are removable. Many DIYers remove the rear benches to install a custom platform bed, making the van a popular choice for “van life” enthusiasts.
Practical Tips for the Dedicated Owner
Keeping a logbook of every service is the best way to maintain the value of your vehicle. Note the date, mileage, and the specific brand of parts or fluids used.
Invest in a mid-range OBD-II scan tool. Being able to read your own “Check Engine” codes can save you a trip to the mechanic for simple issues like a loose gas cap.
Regularly wash the undercarriage, especially if you live in the “Salt Belt.” The Transit’s unibody construction is sturdy, but road salt can hide in the frame rails and cause premature rust.
Finally, listen to your van. New whistles, vibrations, or smells are the vehicle’s way of telling you something is wrong. Addressing a small leak today prevents a major breakdown tomorrow.
The 2017 ford transit 350 xlt is a remarkably capable machine that rewards proactive owners with years of service. Stay on top of your fluids, watch that flex disc, and enjoy the journey!
Stay safe on the road and keep your tools ready!
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