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____________________________________________ Transmission/Transfer Case 5-43 ® 05745159 NOTE: Some corrections indicated in the table below may not be allowed on vehicles covered under the provisions of the war- ranty policy. The proper correction may be transmission replacement. Contact the AMG warranty department for direction in such TRANSMISSION DIAGNOSIS GUIDE Problem Potential Cause Correction Fluid Leaking 1. Transmission overfilled. 1. Drain Excess Fluid off through fill tube. Use 2. Wrong or contaminated fluid. 2. Drain and change fluid and filter. May also be 3. Air entering fluid due to cross leakage at 3. Reseat filter. Remove transmission and reseat 4. Transmission overheat. Caused by: • low fluid level • blocked oil cooler • full load hot climate temperature operation • converter clutch valve or spring failure • converter stator locked (seized) and will not free wheel at coupling speed 4. Correct low fluid level and check for leaks. Transmission 1. Low fluid level. 1. Add fluid and check for leaks. 2. Oil cooler problem: • Fins blocked with dirt, debris • cooler partially plugged • cooler (or lines) leaking 2. Clean dirt/debris with water spray. Replace 3. Converter clutch stuck in applied position. 3. Replace converter. 4. Converter clutch valve, limit valve, or enable 4. Replace transmission. 5. Oil pump or body seal not seated causing 5. Remove pump and replace seal. Be sure pump 6. Pressure regulator valve stuck in high demand 6. Remove oil pump and free up valve. 7. Converter stator clutch seized (locked). 7. Replace converter. Line Pressure 1. Oil pump problem: • loose PCM connection • seals failed • gears damaged • bushing worn, scored • pressure regulator valve or spring fault • reverse/boost valve fault • pressure relief spring collapsed, broken • loose pump bolts 1. Repair loose connection. Replace transmission 2. Pressure control solenoid failed OFF or ON. 2. Replace solenoid 3. TCM/PCM fault. 3. Replace TCM/PCM. |