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Transmission fluid, Checking automatic transmission fluid, Maintenance and specifications – FORD 2010 Flex v.2 User Manual

Page 374

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TRANSMISSION FLUID

Checking automatic transmission fluid

Refer to your scheduled maintenance information for scheduled
intervals for fluid checks and changes. Your transmission does not
consume fluid. However, the fluid level should be checked if the
transmission is not working properly, i.e., if the transmission slips or
shifts slowly or if you notice some sign of fluid leakage.

Automatic transmission fluid expands when warmed. To obtain an
accurate fluid check, drive the vehicle until it is warmed up
(approximately 20 miles [30 km]). If your vehicle has been
operated for an extended period at high speeds, in city traffic
during hot weather or pulling a trailer, the vehicle should be
turned off until normal operating temperatures are reached to
allow the fluid to cool before checking. Depending on vehicle use,
cooling times could take up to 30 minutes or longer.

WARNING: The dipstick cap and surrounding components may
be hot; gloves are recommended.

1. Drive the vehicle 20 miles (30 km) or until it reaches normal operating
temperature.

2. Park the vehicle on a level surface and engage the parking brake.

3. With the parking brake engaged and your foot on the brake pedal,
start the engine and move the gearshift lever through all of the gear
ranges. Allow a minimum of 10 seconds for each gear to engage.

4. Latch the gearshift lever in P (Park) and leave the engine running.

5. Remove the dipstick, wiping it clean with a clean, dry lint free rag. If
necessary, refer to Identifying components in the engine compartment
in this chapter for the location of the dipstick. (For vehicles with the
EcoBoost™ engine, move the air filter assembly aside to access the
transmission dipstick).

WARNING: Use gloves when moving the air filter assembly;
components will be hot.

For vehicles equipped with the EcoBoost™ engine, do the
following:

A. Shut the engine off.

Maintenance and Specifications

374

2010 Flex (471)
Owners Guide, 2nd Printing
USA
(fus)

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