No Torque Converter Clutch Lock-Up
Check for aerated fluid, faulty oil pump, hydraulic pressure too low, low fluid level, stuck switch valve, valve body malfunction or leakage and worn or broken input shaft seal rings.
TORQUE CONVERTER STALL SPEED TEST
| CAUTION | Manufacturer does not recommend performing torque converter stall speed test. |
TORQUE CONVERTER FLUID LEAKAGE TEST
Note. Fluid around torque converter may originate from the engine or transaxle. Ensure transaxle fluid level is correct. Fluid leakage at torque converter may result if fluid level is to high. Transaxle can be checked for leaks using the following method.
Scheme 95
Scheme 95: TORQUE CONVERTER FLUID LEAKAGE TEST
- Remove torque converter housing dust shield. Clean inside area of torque converter housing using solvent and compressed air. Ensure area is clean and dry.
- Fabricate leakage test probe using 1/32" sheet metal, 5" (127 mm) long and 1 1/2" (38.1 mm) wide. (Scheme 95) Operate engine until transaxle is at normal operating temperature. Shut engine off.
- Install leakage test probe on torque converter housing dust shield bolt so leakage test probe is near torque converter. Ensure torque converter does not contact leakage test probe.
- Start engine. Place transaxle in Neutral. Operate engine at 2500 RPM for 2 minutes. Stop engine. Remove leakage test probe.
- If upper surface of leakage test probe is dry, torque converter is not leaking. If upper surface of leakage test probe is wet with ATF, torque converter is leaking. If lower area below leakage test probe is wet with ATF, fluid is coming from around torque converter area.
- Possible causes of fluid leaks at torque converter areas are: Torque converter hub seal. Defective seal (check torque converter hub finish). Mispositioned or worn bushing. Oil pump housing oil return hole restricted. Defective oil pump housing "O" ring or oil pump housing. Oil pump-to-transaxle case bolts.
- If torque converter is leaking, check for defective welds on outside diameter of torque converter and torque converter hub. Torque converter hub is welded on the inside and weld is not visible. Replace torque converter if a leak is present. DO NOT attempt to repair torque converter.
TORQUE CONVERTER
| CAUTION | Torque converter is a welded assembly and is not serviceable. If a malfunction occurs or if torque converter becomes contaminated with foreign material, it MUST be replaced. It cannot be flushed or repaired. |
Scheme 96
Scheme 97
TRANSAXLE SPECIFICATIONS
| Application | Specification |
|---|
| Clutch Clearances |
| Front Clutch | .050-.110" (1.27-2.79 mm) |
| Rear Clutch | .028-.043" (.71-1.09 mm) |
| Differential Rotating Torque | 5-18 INCH Lbs. (.6-2 N.m) |
| Differential Side Gear End Play | .001-.013" (.03-.33 mm) |
| Input Shaft End Play | .008-.060" (.20-1.52 mm) |
| Oil Pump Clearances |
| Oil Pump Gear Side Clearance | .0008-.0018" (.020-.046 mm) |
| Outer Oil Pump Gear-To-Oil Pump Housing | .0018-.0056" (.046-.142 mm) |
| Output Shaft Rotating Torque | 3-8 INCH Lbs. (.3-.9 N.m) |
| Transfer Shaft End Play | .002-.010" (.05-.25 mm) |
TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) |
|---|
| Differential Bearing Retainer Bolt | 21 (29) |
| Differential Cover Bolt | 14 (19) |
| End Cover Bolt | 14 (19) |
| Extension Housing Bolt | 21 (29) |
| Flexplate-To-Crankshaft Bolt | 70 (95) |
| Flexplate-To-Torque Converter Bolt | 50 (68) |
| Governor Counterweight Bolt | 21 (29) |
| Kickdown Band Adjusting Screw Lock Nut | 35 (47) |
| Neutral Start/Back-Up Light Switch | 25 (34) |
| Oil Pan Bolt | 14 (19) |
| Oil Pump-To-Transaxle Case Bolt | 23 (31) |
| Parking Rod Support Bolt | 21 (29) |
| Reaction Shaft Support Bolt | 21 (29) |
| Ring Gear Bolt (1) | 70 (95) |
| Transfer/Output Gear Bolt/Nut | 200 (271) |
| INCH Lbs. (N.m) |
| Governor Assembly-To-Governor Support Bolt | 60 (6.8) |
| Low-Reverse Band Adjusting Screw Lock Nut | 120 (13.6) |
| Oil Filter Assembly Screw | 45 (5.1) |
| Pressure Tap Plug | 45 (5.1) |
| Transfer Plate/Valve Body-To-Transaxle Case Bolt | 105 (12) |
| Valve Body Screw | 45 (5.1) |
| Vehicle Speed Sensor Bolt | 60 (6.8) |
| (1) Always use NEW bolts. DO NOT reuse old bolts. |
| (1) | Always use NEW bolts. DO NOT reuse old bolts. |
