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Automatic Transmission Servicing Cadillac Eldorado X

Automatic Trans 4 illustrations ~727 words

APPLICATION

ModelTransmission
DeVille, DeVille Concours, Eldorado, Seville4T80-E (MH1)

TRANSMISSION IDENTIFICATION

SERVICE INTERVALS

Note. Driver Information Display CHANGE TRANS FLUID message may be displayed on some models. If CHANGE TRANS FLUID message is displayed, see DRAINING & REFILLING procedure. To reset message, press and hold OFF and REAR DEFOG buttons until TRANS FLUID RESET appears in Information Center (5-20 seconds).

Check transmission fluid level at every engine oil change. Transmission fluid should not be changed under normal operating conditions. Under continuous extreme operating conditions (trailer towing, heavy city traffic with ambient temperature greater than 90°F (32°C) or delivery service), fluid and filter should be changed every 50,000 miles.

CHECKING FLUID LEVEL

CAUTIONIf vehicle has been driven for an extended period of time at high speeds, in city traffic, in hot weather or if vehicle has been pulling a trailer, an accurate fluid level reading cannot be made until vehicle has been parked and ATF is allowed to cool for about 30 minutes.
  1. Start engine and allow transmission fluid to reach normal operating temperature. With engine at idle and vehicle on level ground, move gearshift lever through all gear ranges, ending in Park.
  2. Remove transmission dipstick, wipe clean and fully reinsert into filler tube. Remove dipstick again and inspect fluid level. Fluid level should be between ADD 1 PT. or .5L mark and FULL HOT marks, or within cross-hatched area on dipstick.
CAUTIONDO NOT overfill transmission. When transmission is hot, one pint of fluid will raise fluid level from ADD 1 PT. or .5L mark to FULL HOT mark on dipstick.

RECOMMENDED FLUID

Use only Dexron-III Automatic Transmission Fluid (ATF).

FLUID CAPACITIES

ApplicationDrain & Refill - Qts. (L) (2)Overhaul - Qts. (L)
4T80-E11.0 (10.4)12.6 (12.0)
(1) Fluid capacities listed are approximate. Always fill to FULL mark. (2) Drain/refill capacity does not include torque converter.
(1)Fluid capacities listed are approximate. Always fill to FULL mark.
(2)Drain/refill capacity does not include torque converter.

FLUID CAPACITIES (1)

DRAINING & REFILLING

Note. If oil pan bolts are equipped with conical washers, DO NOT reuse bolts if conical washers have become reversed. (Scheme 9)

Scheme 9

Scheme 9: DRAINING & REFILLING
Scheme 9: DRAINING & REFILLING
  1. Raise and support vehicle. Place appropriate size drain pan under transmission oil pan. Remove transmission oil pan front and side bolts only. Loosen rear bolts about 4 turns each.
  2. Using screwdriver, carefully pry pan loose. Allow fluid to drain. Remove remaining bolts and oil pan. Discard old pan gasket. Remove filter and "O" ring or sleeve-type seal. Remove any remaining gasket material on transmission case.
  3. Thoroughly clean pan, magnet and screen (if metal) with solvent, then dry using compressed air. Replace paper filter (if equipped). Install NEW "O" ring on pick-up tube or NEW sleeve into pick-up tube recess. Lubricate with clean oil before installation.
  4. Install filter assembly into pick-up tube recess. Install oil pan using NEW gasket and tighten oil pan bolts to specification. See «TORQUE SPECIFICATIONS»(/cadillac/eldorado/x-1992-2002/remont/automatic-trans/#automatic-transmission-servicing__torque-specifications) . Add required amount of fluid to transmission through filler tube or fill hole.
  5. Start engine with gearshift lever in Park and parking brake applied. Check fluid level. See «CHECKING FLUID LEVEL»(/cadillac/eldorado/x-1992-2002/remont/automatic-trans/#automatic-transmission-servicing__checking-fluid-level) . Add appropriate fluid as necessary. See «RECOMMENDED FLUID»(/cadillac/eldorado/x-1992-2002/remont/automatic-trans/#automatic-transmission-servicing__recommended-fluid) . DO NOT overfill.

PARK LOCK CABLE

CAUTIONWhen battery is disconnected, vehicle computer may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See the COMPUTER RELEARN PROCEDURES article in the GENERAL INFORMATION section before disconnecting battery.

Note. Park lock cable adjustment information for Seville not available at time of publication. With gearshift lever in "P" position and ignition switch in LOCK position, ensure gear selector lever cannot be moved to any other position. Ignition key should be removable.

Except Seville

  1. Remove console, left-side sound insulator and knee bolster as necessary. Ensure ignition switch is in LOCK position. Place park lock cable adjuster button in up (unlocked) position. Grasp cable at front of spring and move forward in vehicle to remove slack. Release cable.
  2. Move cable adjuster rearward in vehicle 1/16" (1.5 mm) from previous position. While holding cable in this position, push adjuster button down flush with adjuster body. Check park lock cable operation.

PARK/NEUTRAL POSITION (PNP) SWITCH

Note. PNP switch may also be known as Transmission Range (TR) sensor or neutral safety switch. Adjust switch so engine starts with transmission in Park or Neutral only.

  1. Disconnect shift cable from transmission shift lever. Remove shift lever. Loosen PNP switch mounting bolts. Using Alignment Tool (J-41545), align slots of PNP switch to Neutral position by rotating. (Scheme 10)
  2. Tighten PNP switch mounting bolts to 18 ft. lbs. (24 N.m). Remove alignment tool. Reinstall transmission shift lever. Tighten transmission shift lever nut to 15 ft. lbs. (20 N.m). Reconnect shift cable.
  3. Ensure engine starts with transmission in Park or Neutral only. Readjust PNP switch if operation is not as specified.

Scheme 10

Scheme 10
Scheme 10

SHIFT CABLE

WARNINGAdjust shift cable so engine will start with transmission in Park or Neutral only. Misadjusted shift linkage could cause clutch and/or band failure in transmission.

Note. Most FWD vehicles are equipped with a self-adjusting shift cable.

Place gearshift lever in Neutral. Lift or press lock button on cable adjuster at transaxle mounting bracket. (Scheme 11) Place transaxle shift lever in Neutral detent. Push down or release lock button.

Scheme 11

Scheme 11
Scheme 11

STOPLIGHT SWITCH

Ensure brake pedal is fully released. Adjust switch until switch plunger just touches brake pedal lever.

SHIFT INTERLOCK SYSTEM

Note. See SHIFT INTERLOCK SYSTEM article in AUTO TRANS DIAGNOSIS section.

TORQUE SPECIFICATIONS

ApplicationFt. Lbs. (N.m)
PNP Switch Mounting Bolts18 (24)
INCH Lbs. (N.m)
Oil Pan Bolts(1)
(1) Tighten oil pan bolts in 3 steps in sequence as shown. (Scheme 12)
(1)Tighten oil pan bolts in 3 steps in sequence as shown. (Scheme 12)

TORQUE SPECIFICATIONS

Scheme 12

Scheme 12
Scheme 12

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