Suzuki XL7 2007 Service Manual page 1584

5A-174 Automatic Transmission:
Engagement Time From Park or Neutral to Drive is Not Within Specifications
Condition
DEFINITION: Engagement time from PARK or NEUTRAL to DRIVE is NOT within specifications
Automatic transmission fluid (ATF)
level low, contaminated, or unit is
contaminated with engine coolant
Transmission is filled with the wrong
type of automatic transmission fluid
(ATF)
Automatic Transmission Input
Speed Sensor (73)
Internal Automatic Transmission Control Valve Body Assembly (39)
Forward Clutch Control Valve (354) Remove the automatic transmission control valve body assembly (39) to inspect
Clutch - Mechanical/Hydraulic
Forward Clutch Assembly (550-
553)
Engagement Time From Park or Neutral to Reverse is Not Within Specifications
Condition
DEFINITION: Engagement time from PARK or NEUTRAL to REVERSE is NOT within specifications
Automatic transmission fluid (ATF)
level low, contaminated, or unit is
contaminated with engine coolant
Transmission is filled with the wrong
type of automatic transmission fluid
(ATF)
Automatic Transmission Input
Speed Sensor (73)
External Automatic Transmission Control Valve Body Assembly (39)
Reverse Shift Solenoid Valve
Assembly (S5) (305)
Internal Automatic Transmission Control Valve Body Assembly (39)
Inspect the ATF level and color. Perform "Transmission Fluid Check" and make
sure that the fluid does not smell burnt, and shows no sign of engine coolant
cross contamination. If cross contamination is present, perform a system flush.
Refer to "Transmission Fluid Cooler Flushing and Flow Test". Retest to verify the
repair.
If unable to determine if the transmission has the correct type of fluid, drain the
unit and refill with the correct ATF and retest.
Inspect the automatic transmission input speed sensor (73) for loose electrical
connection and/or signs of physical damage that could cause erratic output. The
magnetic end of the sensor should be free of any metal shavings/particles,
including heavy friction material build-up. If metal or heavy friction material is
found, diagnose the cause and repair as needed. Perform a complete ATF flush
on the transmission and oil cooler assembly. Refer to "Transmission Fluid
Cooler Flushing and Flow Test".
the forward clutch control valve (354). Inspect the internal bore and the valve for
signs of wear and/or damage, including internal contamination. If unable to
verify a repairable concern, replace the complete automatic transmission control
valve body assembly (39).
Remove the automatic transmission case cover and 1-2 reverse clutch
assembly (19), and the forward and direct clutch assembly (23) to inspect all
forward clutch components and operation. Repair or replace as needed.
Inspect the ATF level and color. Perform "Transmission Fluid Check" and make
sure that the fluid does not smell burnt, and shows no sign of engine coolant
cross contamination. If cross contamination is present, perform a system flush.
Refer to "Transmission Fluid Cooler Flushing and Flow Test". Retest to verify the
repair.
If unable to determine if the transmission has the correct type of fluid, drain the
unit and refill with the correct ATF and retest.
Inspect the automatic transmission input speed sensor (73) for loose electrical
connection and/or signs of physical damage that could cause erratic output. The
magnetic end of the sensor should be free of any metal shavings/particles,
including heavy friction material build-up. If metal or heavy friction material is
found, diagnose the cause and repair as needed. Perform a complete ATF flush
on the transmission and oil cooler assembly. Refer to "Transmission Fluid
Cooler Flushing and Flow Test".
Verify that the solenoid responds electrically. If there is no response, perform an
electrical diagnosis. If there are no electrical concerns, remove the solenoid
valve assembly and inspect the solenoid O-ring seals and the solenoid bore for
signs of damage and/or missing seals. If the valve responded electrically and
there are no bore or seal concerns, replace the assembly as required due to a
possible internal mechanical concern and retest. If after reverse shift solenoid
valve assembly replacement a concern is still present, replace the complete
automatic transmission control valve body assembly (39).
Action
Action