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Section 120-0070
Transmission - Transmission Electronic Controls
4
SM 1735 2-99
POWERSHIFT TROUBLESHOOTING - Continued
Symptom
Problem
Solution
Low or no converter pressure
Converter bypass valve defective.
Replace converter bypass valve.
(Converter in pressure).
Converter hub seal ring not sealing.
Replace seal ring.
Check converter offset dimension.
Correct offset dimension.
Filter or filter oil lines blow
Hose bends too sharp.
Reroute hoses.
out.
Defective hose.
Replace hose.
Main regulator valve faulty.
Change valve and change filter
and oil.
System plumbing incorrect.
Correct plumbing.
Filter 'O' ring faulty.
Replace filter.
Excessive noise.
Charge pump defective.
Replace pump.
Excessive backlash in gear train.
Replace bearings and inspect for
defective gears.
Auxiliary driven pump bad.
Remove pump and check for
noise.
Blows oil out of breather or
Transmission over filled with oil.
Establish proper oil level. Check
dipstick tube.
front seal on auxiliary driven
hydraulic pump if equipped.
Converter seal ring damaged.
Remove transmission and install
new seal ring on converter hub.
Transmission overheating.
Converter stalling.
Shift to lower gear.
Oil level too high.
Establish proper oil level. Check
front seal on auxiliary driven
hydraulic pump if equipped.
Engine overheating.
Check engine coolant.
Water lines defective on heat exchanger. Replace lines.
Heat exchanger dirty.
Clean heat exchanger.
Clutch slipping.
Check clutch pressure.
Summary of Contents for TS14G
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