Suzuki XL7 2007 Service Manual page 1569

Do not replace the torque converter if you discover any
of the following symptoms:
• The fluid has an odor or the fluid is discolored, even
though metal or clutch facing particles are not present.
• Transmission failure did not display evidence of
damaged or worn internal parts, steel particles or
clutch plate lining material in the unit and inside the
fluid filter.
• The vehicle has been exposed to high mileage only.
An exception may exist where the lining of the torque
converter clutch dampener plate has seen excess
wear by vehicles operated in heavy and/or constant
traffic, such as taxi, delivery, or police use.
Flexplate/Torque Converter Vibration Test
Drive Plate (Flexplate) Deflection
Inspect the drive/flexplate assembly in order to verify
that the deflection/lateral runout is within specification as
listed. If lateral runout is greater than the maximum
allowed specification, replace the drive/flexplate
assembly.
Specification
Lateral runout of the drive/flexplate assembly must
be less than 0.2 mm (0.008 in).
CAUTION
!
When installing the TCC to the drive/
flexplate, make sure to use specified TCC
mount bolts. DO NOT use longer bolts. Using
longer bolts will result in deformation of the
TCC cover and damage to the TCC lock up
clutch lining. TCC lock up malfunction will
eventually occur, resulting in a need to
replace the TCC assembly.
NOTE
If abnormal wear or witness marks are
present on the torque converter clutch (TCC)
sleeve, or on the fluid pump assembly,
replace the TCC and the automatic
transmission fluid pump assembly.
Automatic Transmission:
Stall Speed Test
Purpose/Description Of Test
A stall test is preformed to inspect the overall
performance of the automatic transmission and engine
assembly by measuring the stall speed in both the
DRIVE and REVERSE gear ranges.
Conditions
• Verify that the automatic transmission fluid (ATF)
temperature is between 50-80°C (120-176°F).
• All additional electrical loads are OFF.
CAUTION
!
Do not continuously run the test procedure
for longer than 5 seconds because of the
extreme increase in the automatic
transmission fluid (ATF) temperature. Also,
be sure to keep the interval between stall
tests to more than 1 minute in order to
prevent damage to the automatic
transmission internal components.
Procedure
1. Chock all 4 wheels and fully apply the parking brake
in order to prevent any vehicle movement during
testing.
2. Apply firm pressure to the service brake pedal with
the left foot in order to apply the service brakes.
3. Move the automatic transmission manual gearshift
selector from the PARK position to the DRIVE
position.
4. Evenly press the accelerator pedal to the wide-open
throttle (WOT) position with the right foot.
5. Record the maximum engine RPM noted within 5
seconds of achieving the WOT position, and then
return to the closed throttle position. Return the gear
selector to the PARK position.
6. Wait 1 minute before proceeding to the next portion
of the test procedure.
7. Move the automatic transmission manual gearshift
selector from the PARK position to the REVERSE
position.
8. Evenly press the accelerator pedal to the wide-open
throttle (WOT) position with the right foot.
9. Record the maximum engine RPM noted within 5
seconds of achieving the WOT position, and then
return to the closed throttle position. Return the gear
selector to the PARK position.
Specifications
2,450-2,750 RPM
5A-159