Dodge D150 1990 Service Manual page 910

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AUTOMATIC TRANSMISSION 21 - 59
TRANSMISSION DIAGNOSIS CHART
P O S S I B L E C A U S E
Faulty lockup clutch
Overrunning clutch inner race
damaged.
Overrunning clutch worn, broken
or seized.
Planetary gear sets broken or
seized.
Rear clutch dragging.
Worn or faulty rear clutch.
insufficient cutch plate clearance.
Faulty cooling system.
Kickdown band adjustment too
tight.
Hydraulic pressure too high.
Breather clogged.
High fluid level.
Worn or faulty front clutch.
Kickdown servo band or linkage
malfunction.
Governor malfunction.
Worn or broken reaction shaft
support seal rings.
Governor support seal rings broken
or worn.
Output shaft bearing and/or
bushing damaged.
Overrunning clutch not holding.
Kickdown band out of adjustment.
Incorrect throttle linkage
adjustment.
Engine idle speed too low.
Aerated fluid.
Worn or broken input shaft seal
rings.
Faulty oil pump.
Oil filter clogged.
Incorrect gearshift control linkage
adjustment.
Low fluid level.
Low-reverse servo, band or linkage
malfunction.
Valve body malfunction or
leakage.
Low-reverse band out of
adjustment.
Hydraulic pressure too bw.
Engine idle speed too high.
Stuck lockup valve.
Stuck switch valve.
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