2017 Ford Expedition Transmission in Fort Worth, TX

These symptoms do not identify a single cause. Fluid condition, stored fault codes, and possible mechanical wear all need to be considered before service is recommended.

• Delayed or harsh gear changes
• Slipping or shuddering during acceleration
• Dark fluid or a burnt smell where a dipstick is fitted

The technician confirms the procedure against the automatic transmission fitted to the vehicle. Findings are reviewed before additional service is recommended.

• Fluid condition inspection
• Fluid level inspection
• Stored transmission fault-code scan

Many manufacturers publish normal and severe-use schedules, and towing, heat, and stop-and-go driving put added demands on a vehicle. Fluid condition can be inspected between scheduled points, especially when shifting changes.

• Manufacturer-published interval: every 150,000 miles
• Towing and high heat increase operating demands
• Fluid condition can be checked between scheduled services

Transmission fluids are not interchangeable, and using the wrong fluid can damage the unit. The fluid is identified from the vehicle and its transmission rather than from the model name alone.

• Fluid selection follows the fitted transmission
• The manufacturer's specification is used
• Fluid type should be confirmed before service

A drain and fill replaces roughly what the pan holds, while an exchange addresses more of the system. The dealership inspects the fluid and considers the vehicle's history before recommending either service, rather than defaulting to an expensive procedure.

• Drain and fill replaces roughly the pan-held fluid
• A full exchange addresses more of the system
• Inspection and service history guide the recommendation

Slipping and harsh shifting can result from fluid condition, electronic concerns, or mechanical wear. Continued driving under those conditions may increase damage, and a fluid change is not guaranteed to correct a mechanical fault.

• Book a diagnosis when slipping begins
• Avoid treating symptoms as a confirmed diagnosis
• Ask the technician to scan for stored fault codes

Some transmissions are built without a dipstick or a serviceable pan, and the manufacturer publishes no routine replacement interval for those designs. The technician confirms the transmission design and follows the applicable procedure.

• Some units have no dipstick
• Some units have no serviceable pan
• Vehicle-specific inspection determines the procedure

An independent shop is often cheaper on labor and fluid, while the dealership provides Ford-specific equipment, training, and procedures. The right choice depends on the driver's priorities and the service required.

• Independent shops may offer lower labor costs
• The dealership uses the specified transmission fluid
• Factory procedures guide service at David McDavid Ford