Contents Section: 40te Automatic Transmission - Diagnosis All sections

CALCULATED TEMPERATURE Chrysler PT Cruiser I

40te Automatic Transmission - Diagnosis 10 illustrations ~653 words

CALCULATED TEMPERATURE

A failure in the temperature sensor or circuit will result in calculated temperature being substituted for actual temperature. Calculated temperature is a predicted fluid temperature which is calculated from a combination of inputs

  1. Battery (ambient) temperature
  2. Engine coolant temperature
  3. In-gear run time since start-up

The valve body assembly must be removed to gain access to and replace the transmission range sensor.

Scheme 376

Scheme 376

Scheme 377

Scheme 377

Scheme 378

Scheme 378

Scheme 379

Scheme 379

Scheme 380

Scheme 380

Scheme 381

Scheme 381

Scheme 382

Scheme 382

Scheme 383

Scheme 383
  1. Disconnect the battery cables.
  2. Remove air cleaner assembly. see scheme 416 1 - AIR CLEANER ASSEMBLY
  3. Remove the battery hold down clamp and remove the battery. see scheme 417 1 - BATTERY
  4. Remove the battery tray. see scheme 418 1 - BATTERY TRAY
  5. Disconnect gearshift cable from manual valve lever. (Scheme 376) 1 - GEARSHIFT CABLE 2 - MANUAL VALVE LEVER
  6. Remove manual valve lever.
  7. Disconnect transmission range sensor connector.
  8. Hoist vehicle.
  9. Remove oil pan bolts. (Scheme 377) 1 - OIL PAN BOLTS (USE RTV UNDER BOLT HEADS)
  10. Remove oil pan. (Scheme 378) 1 - OIL PAN 2 - 1/8 INCH BEAD OF RTV SEALANT 3 - OIL FILTER
  11. Remove oil filter. see scheme 422 1 - OIL FILTER 2 - O-RING
  12. Remove the valve body-to-transaxle case bolts. (Scheme 379) 1 - VALVE BODY ATTACHING BOLTS (18) 2 - VALVE BODY NOTE: To ease removal of the valve body, turn the manual valve lever fully clockwise to low or first gear.
  13. Remove park rod rollers from guide bracket and remove valve body from transaxle. (Scheme 380)and (Scheme 381). 1 - PARK SPRAG ROLLERS 2 - SCREWDRIVER 3 - PARK SPRAG GUIDE BRACKET 1 - VALVE BODY CAUTION: The valve body manual shaft pilot may distort and bind the manual valve if the valve body is mishandled or dropped.
  14. Remove manual shaft seal. (Scheme 382) 1 - SEAL 2 - MANUAL SHAFT
  15. Remove TRS retaining screw. (Scheme 383) 1 - TRANSMISSION RANGE SENSOR 2 - MANUAL VALVE CONTROL PIN 3 - RETAINING SCREW
  16. Slide Transmission Range Sensor up the manual shaft and remove. (Scheme 384)

Scheme 384

Scheme 384
1 - TRANSMISSION RANGE SENSOR
2 - VALVE BODY

The valve body assembly must be removed to gain access to and replace the transmission range sensor.

  1. Install transmission range sensor. (Scheme 384)
  2. Tighten retaining screw to 5 N.m (45 in. lbs.). (Scheme 383)
  3. Install manual shaft seal. (Scheme 382)
  4. Guide park rod rollers into guide bracket while installing valve body to the transaxle case. (Scheme 380)and (Scheme 381).
  5. Install the valve body-to-case bolts and torque to 12 N.m (105 in. lbs.). (Scheme 379)
  6. Install the oil filter. see scheme 422 Inspect the o-ring for damage and replace as necessary.
  7. Install an 1/8' bead of RTV (Scheme 378)and install pan to case.
  8. Install oil pan bolts and torque to 19 N.m (165 in. lbs.) torque. (Scheme 377)
  9. Lower vehicle.
  10. Connect transmission range sensor connector.
  11. Install manual valve lever to manual valve.
  12. Install gear shift cable to manual valve lever. (Scheme 376)
  13. Install the battery tray. see scheme 418
  14. Install the battery and hold down clamp. see scheme 417
  15. Install air cleaner assembly. see scheme 416
  16. Connect battery cables.
  17. Fill transaxle with ATF+4 (Automatic Transmission Fluid-Type 9602). Refer to «FLUID LEVEL AND CONDITION CHECK»(/chrysler/pt-cruiser/i-2000-2010/remont/automatic-trans/#40te-automatic-transmission-diagnosis__fluid-level-and-condition-check).

The valve body assembly consists of a cast aluminum valve body, a separator plate, and transfer plate. The valve body contains valves and check balls that control fluid delivery to the torque converter clutch, solenoid/pressure switch assembly, and frictional clutches. The valve body contains the following components. (Scheme 385)

  1. Regulator valve
  2. Solenoid switch valve
  3. Manual valve
  4. Converter clutch switch valve
  5. Converter clutch control valve
  6. Torque converter regulator valve
  7. Low/Reverse switch valve

In addition, the valve body also contains the thermal valve, #2,3&4 check balls, the #5 (overdrive) check valve and the 2/4 accumulator assembly. (Refer to TRANSMISSION/TRANSAXLE/AUTOMATIC - 41TE/VALVE BODY - DISASSEMBLY)

Scheme 385

Scheme 385
1 - VALVE BODY5 - MANUAL VALVE
2 - T/C REGULATOR VALVE6 - CONVERTER CLUTCH SWITCH VALVE
3 - L/R SWITCH VALVE7 - SOLENOID SWITCH VALVE
4 - CONVERTER CLUTCH CONTROL VALVE8 - REGULATOR VALVE

Note. Refer to the 40TE TRANSAXLE HYDRAULIC SCHEMATICS for a visual aid in determining valve location, operation and design.