Ford F-150 2002 - Leakage Inspection

3. Drive the vehicle through 8 to 10 cycles of 1/2 throttle, 1-2 upshifts to elevate the transmission temperature. Then proceed as follows:
 Park the vehicle on level ground.
 Allow the vehicle to sit for 30-60 minutes.
 Check and note the fluid level on the fluid level indicator with the engine off, in PARK. The following example shows the fluid level after 45 minutes.
4. Allow the vehicle to sit for a minimum of 24 hours. Check and note the fluid level.
5. If the fluid has risen 25.4 mm (1 in) or more above the level in the first check, excessive converter drainback has occurred.
6. If excessive drainback has occurred check for:
 stuck open check ball in rear cooler line case fitting.
 no check ball in rear cooler line case fitting.
 incorrect case cooler line case fitting (without check ball) installed.
7. Repair as required and recheck.
Leakage Inspection
The transmission has the following parts to prevent external fluid leakage:
 Gaskets
 Lip-type seals
 O-ring seals
 Seal rings
 Seal grommets
 Thread sealant
 Cooler bypass valve (CBV) sealing washers
External Sealing
Page
30
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33
2002 F
-
150 Workshop Manual
9/17/2010
http://www.fordtechservice.dealerconnection.com/pubs/content/~WS21/~MUS~LEN/19/S
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