Incorrect Line Pressure
Checks
| Cause
|
DEFINITION:
Transmission main line pressure that is determined to be high or low. Refer
to
Line Pressure Check
.
|
Automatic transmission fluid level (low pressure only)
| Low fluid level
|
Thermo element
assembly (low pressure only)
|
| • | The thermo element plate pins (120, 123) are misadjusted |
| • | The thermo element (121) or the thermo element plate (122) is
out of position, missing, or damaged -- causing low fluid level in the
oil pan |
|
Oil filter and seal assembly
|
| • | The oil filter assembly (100) is missing or damaged |
| • | The oil filter seal assembly (101) is missing or damaged (low
pressure only) |
|
Wiring harness assembly
| The wiring harness assembly (224) is disconnected or damaged
|
Oil pump assembly
|
| • | The following components are worn or damaged (low pressure only): |
| - | the oil pump cover (201) |
| - | the oil pump body (202) |
| - | the oil pump vane ring (209) |
| - | the oil pump rotor (210) |
| - | the oil pump vanes (211) |
| - | the oil pump slide oil seal ring (212) |
| - | the oil pump slide O-ring seal (213) |
| - | the oil pump slide (214) |
| • | The oil pump slide (214) is binding (high pressure only) |
| • | The oil pump prime springs (222, 223) or the oil pump slide pivot
pin (215) is missing or damaged (low pressure only) |
| • | The oil pump slide seal (220) or the oil pump slide seal support
(221) is missing or damaged (high pressure only) |
|
Pressure control solenoid valve assembly
|
| • | The pressure control solenoid valve assembly (322) is damaged |
| • | The solenoid valve O-ring seals (305, 316) are missing or damaged |
| • | The valve retainer (314) is missing or damaged |
|
Torque signal regulator valve assembly
|
| • | The torque signal regulator valve (321) is binding or damaged |
| • | The valve retainer (314) is missing or damaged |
|
Pressure regulator valve assembly
|
| • | The pressure regulator valve (313) is binding or is damaged |
| • | The pressure regulator valve springs (311, 312) is missing or
damaged |
| • | The reverse boost valve (310) is binding or is damaged (high pressure
only) |
| • | The line boost valve (304) is binding or is damaged (high pressure
only) |
| • | The valve retainer (302) is missing or is damaged |
|
Actuator feed limit valve assembly (low pressure only)
|
| • | The actuator feed limit valve (414) is binding or is damaged |
| • | The actuator feed limit valve spring (415) is missing or is damaged |
| • | The actuator feed limit valve spring retainer (416) is missing
or damaged |
|
Low blow off valve assembly (low pressure only)
|
| • | The low blow off valve spring (323) is missing or is damaged |
| • | The low blow off ball valve (324) is missing, binding, or is damaged |
| • | The low blow off valve spring retainer (325) is missing or is
damaged |
|
