Suzuki XL7 2007 Service Manual page 1570

5A-160 Automatic Transmission:
Stall Test Results
Observed RPM is LOWER than the specification in BOTH
DRIVE AND REVERSE ranges
Observed RPM is HIGHER than the specification in
DRIVE ONLY
Observed RPM is HIGHER than the specification in
REVERSE ONLY
Observed RPM is HIGHER than the specification in
BOTH DRIVE AND REVERSE ranges
Engagement Delay Test
Purpose/Description of Test
Engagement delay is the time delay in seconds that it
takes 1 to feel the slight engagement of the automatic
transmission assembly into gear. The engagement delay
test starts when the automatic transmission gearshift
selector is moved from the PARK to the REVERSE or
DRIVE positions. This test can also be performed by
starting in the NEUTRAL position and then shifting to the
DRIVE or REVERSE positions. Engagement delay times
can be used to diagnose the hydraulic system and
internal clutch conditions/concerns.
Conditions
• Verify that the automatic transmission fluid (ATF)
temperature is between 50-80°C (120-176°F).
• All additional electrical loads are OFF.
• The engine is at, and maintains, a base idle.
Procedure
1. Chock all 4 wheels and fully apply the parking brake
in order to prevent any vehicle movement during
testing.
NOTE
• Perform each test 3 times and take the
average value.
• Maintain a time interval of greater than 1
minute between engagement delay tests.
The 1 minute delay allows release of clutch
fluid pressure.
Result Possible Cause
• Base engine concern
• Torque converter clutch (TCC) internal one-way clutch
failure
• Line pressure is below specifications
• Forward clutch (565) concern
• Front internal gear and low clutch sprag assembly (25)
concern
• Line pressure is below specifications
• Direct clutch (562) slipping
• Low and reverse clutch (511) slipping
• Line pressure is below specifications
• 1-2 reverse clutch (603) slipping
• Internal fluid leak concern in each of the selected
ranges
• After servicing any of the following, clear
the adapt learn data and perform adapt
learn procedure. Poor transaxle
performance will occur without completing
the adapt learn. Refer to "Transmission
Adaptive Functions".
– Control valve body replacement
– TCM replacement
– TCM calibration change
– Transaxle replacement
• The adapt learn procedure requires repeat
shifting the transaxle from Neutral to Drive
to Neutral 5 times. Then repeat shifting
from Neutral to Reverse to Neutral 5 times.
While in Drive or Reverse, hold in that
range for a minimum of 3 seconds.
2. Begin the test by using a time recording device,
starting the device at the moment when the
automatic transmission gearshift selector is moved
from either the PARK or the NEUTRAL position to
either the REVERSE or the DRIVE position.
3. The time recording device is stopped at the exact
moment that the automatic transmission is felt to
have engaged into the selected gear.
Specifications
• PARK or NEUTRAL to DRIVE position: Less
than 0.7 seconds
• PARK or NEUTRAL to REVERSE position:
Less than 1.2 seconds