TM 9-2320-280-34
17-14. TRANSMISSION DISASSEMBLY INTO SUBASSEMBLIES (4L80-E) (Cont'd)
e.1. Control Valve Assembly (1997-1998)
1.
Disconnect wiring harness (6) from PWM solenoid (7), pressure control solenoid (8), transmission
fluid pressure switch (2), 2-3 shift solenoid (5), 1-2 shift solenoid (4), and connector (3).
NOTE
Capscrews are different lengths. Record location of each capscrew
for installation.
2.
Remove two capscrews (9), clips (10), and harness (6) from control valve assembly (12).
3.
Remove six capscrews (13) and transmission fluid pressure switch (14) from control valve
assembly (12).
4.
Remove capscrew (16) and spring and roller assembly (15) from control valve assembly (12).
5.
Remove lube pipe (11) from control valve assembly (12).
6.
Remove sixteen capscrews (19) and control valve body assembly (12) from transmission (1).
CAUTION
Do not use magnets or any magnetized tools to remove checkballs.
Some checkballs are metal, and if magnetized, will pick up debris
from oil and cause malfunction of transmission.
NOTE
Record locations of checkballs for assembly.
7.
Remove eight checkballs (17) from transmission (1).
8.
Remove screen (18) from transmission (1).
17-66.2
Change 1
