ATF Pump Inspection
1. ATF Pump - Inspect
1.
Lubricate the ATF pump drive gear (A), the ATF pump driven gear (B), and the ATF pump driven gear shaft (C) with ATF.
2.
Install the ATF pump drive gear, the ATF pump driven gear, and the ATF pump driven gear shaft in the main valve body (D). Install the ATF pump driven gear with its grooved and chamfered side facing up.
3.
Measure the side clearance of the ATF pump drive gear (A) and the ATF pump driven gear (B) using a feeler gauge (C).
ATF Pump Gears Side (Radial) Clearance
 
Standard (New):
   
ATF Pump Drive Gear
     
0.210?0.265 mm (0.009?0.010 in)
   
ATF Pump Driven Gear
     
0.070?0.125 mm (0.003?0.004 in)
4.
Remove the ATF pump driven gear shaft.
5.
Measure the thrust clearance between the ATF pump drive gear (A) and the main valve body (B), and between the ATF pump driven gear (C) and the main valve body using a straight edge (D) and a feeler gauge (E).
ATF Pump Drive/Driven Gear Thrust (Axial) Clearance
 
Standard (New): 0.04?0.07 mm (0.002?0.002 in)
 
Service Limit: 0.07 mm (0.002 in)
6.
If the measurements are out of the standards, replace the main valve body assembly.