Disassembly Procedure
Start By:
- Remove the transmission hydraulic control valve. Refer to Disassembly and Assembly, "Transmission Hydraulic Control Valve - Removal".
Note: Put identification marks on all sections of the transmission hydraulic control valve for assembly purposes.
- Remove the solenoid valve from the transmission hydraulic control valve by the following steps:
- Remove electrical connector (4) from the support clip.
- Remove the nut, the washer and coil assembly (2) from cartridge (1) .
- Remove cartridge (1) from manifold (3) .
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| Illustration 1 | g00485497 |
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| Illustration 2 | g00485498 |
Note: Put identification marks on all electrical connectors (4) for assembly purposes. Electrical connectors (4) must be positioned on the correct support clip after assembly.
- Check the condition of the three O-ring seals on the cartridge (1). Replace the O-ring seals with new parts, as needed.
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| Illustration 3 | g00485529 |
- Install the solenoid valve to the transmission hydraulic control valve by the following steps:
- Install cartridge (1) on manifold (3). Tighten the cartridge to 50 ± 5 N·m (37 ± 4 lb ft).
- For the 3E-3748 Solenoid Valve, tighten the retaining nut for the coil to 5.0 ± 0.5 N·m (44 ± 4 lb in). For the 147-5399 Solenoid Valve, tighten the retaining nut for the coil to 9.0 ± 0.5 N·m (80 ± 4 lb in).
- Install electrical connector (4) to the support clip.
- Repeat steps 1.a through 3.c for the remaining solenoid valves.
- Remove the bolts that hold wiring harness (7) .
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| Illustration 4 | g00485564 |
- Remove bolts (5) from manifold (3) .
- Remove manifold (3) and wiring harness (7) from manifold (6) .
- Remove two connectors (8) from manifold (6). Check the condition of the O-ring seals on connectors (8). Replace damaged seals with new parts.
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| Illustration 5 | g00485893 |
- Remove plug (10) from manifold (6). Check the condition of the O-ring seals on plug (10). Replace damaged seals with new parts.
- Remove twenty bolts (9) from manifold (6) .
- Remove manifold (6) from valve (11) .
- Remove valve (11) from plate (12) .
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| Illustration 6 | g00485901 |
- Remove the bolts and cover (13) from valve (11). Check the condition of O-ring seals beneath cover (13). Replace damaged seals with new parts.
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| Illustration 7 | g00485902 |
- Remove stop (14) and spool (15) from valve (11) .
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| Illustration 8 | g00485903 |
- Remove retaining ring (16), two retainers (17) and spring (18) from spool (15) .
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| Illustration 9 | g00485912 |
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| Illustration 10 | g00485914 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- Remove spring (19) and spool (20) from valve (11) .
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| Illustration 11 | g00485957 |
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| Illustration 12 | g00485959 |
- Remove retaining ring (21), retainer (22), spring (23) and spring (24) from spool (20) .
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| Illustration 13 | g00485960 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- The following steps are for the removal of spool (25) from valve (11) :
- Position valve (11) on wood blocks, as shown.
- Use a punch to drive pin (26) into valve (11) until pin (26) is clear of spool (25). Do not remove the punch at this time.
- Use a screwdriver to slightly depress spool (25) .
- Remove the punch from pin (26) .
- Slowly remove the screwdriver from spool (25). This will relieve the spring force that is against spool (25) .
- Remove spool (25) from valve (11) .
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| Illustration 14 | g00485972 |
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| Illustration 15 | g00485975 |
Note: Spool (20) and spool (25) are located in the same bore of valve (11). Spool (25) is located in the opposite end of the bore.
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- Remove spring (27) from valve (11) .
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| Illustration 16 | g00486202 |
- Remove slug (28) from spool (25) .
- Reposition valve (11) on a bench, as shown.
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| Illustration 17 | g00486207 |
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| Illustration 18 | g00486208 |
- Remove piston (29) from valve (11) .
- Remove spacers (30) from the inside diameter of piston (29) .
- Remove spring (31) and spring (32) from valve (11) .
- Remove spool (33) from valve (11) .
Note: Keep the outside diameter of the spool (33) aligned with the bore of valve (11). Avoid damaging or scratching the finished surfaces of spool (33) and of the bore of valve (11) .
- Remove slug (34) from spool (33) .
- Remove retaining ring (38), retainer (37), spring (36) and ball (35) from spool (33) .
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| Illustration 19 | g00486216 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- Remove stop (39) and spool (40) from valve (11) .
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| Illustration 20 | g00486381 |
- Remove retaining ring (41), two retainers (42) and spring (43) from spool (40) .
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| Illustration 21 | g00486501 |
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| Illustration 22 | g00486503 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- Remove plate (12) from valve (44) .
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| Illustration 23 | g00486508 |
- Remove two plugs (45) from plate (12). Check the condition of the O-ring seals on each plug (45). Replace damaged seals with new parts.
- Remove the bolts and cover (46) from valve (44). Check the condition of O-ring seal (47). Replace damaged seals with new parts.
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| Illustration 24 | g00486540 |
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| Illustration 25 | g00486541 |
- Remove stop (48) from valve (44) .
- Remove spool (52) from valve (44) .
- Remove retaining ring (49), two retainers (50) and spring (51) from spool (52) .
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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