Dodge RAM TRUCK 1500 1995 Service Manual page 1412

B R 42RH/46RH/47RH TRANSMISSION DIAGNOSIS AND TESTING 21 -129
TORQUE CONVERTER DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
VIBRATION OR SHUDDER
DURING CONVERTER
CLUTCH ENGAGEMENT -
CONT.
5. Oil pump fault:
(a) leaking seals, seal rings
(b) pump gears worn
(c) pump bolts loose
(d) reaction shaft/pump bushing
damage
(e) vent damaged.
6. Valve body malfunction.
5. Remove and overhaul pump.
6. Remove and service valve body. Look for
loose screws, misassembled parts, stuck
valves, etc.
SHUDDER AFTER CLUTCH
ENGAGEMENT
1. Engine fuel or ignition problem.
2. Exhaust system problem (pipes
grounding against chassis, or
restrictions in converter, muffler,
or pipe).
3. Incorrect fluid.
4. Throttle valve cable out of
adjustment.
5. Low fluid level.
6. Converter clutch failure.
7. Restriction in cooler system.
8. Valve body malfunction.
9. Oil pump pressure low.
1. Diagnose with scan tool and correct as
needed.
2. Realign grounded pipes. Replace
restricted parts.
3. Drain and refill with MOPAR ATF Plus,
type 7176.
4. Adjust cable.
5. Top off fluid and check for leak.
6. Replace torque converter.
7. Reverse flush system. Replace radiator,
if cooler is restricted.
8. Remove and service valve body. Look for
failed solenoid, sticking valves, loose
attaching screws, misassembled parts.
9. Remove and overhaul pump. Replace
bushings, seals, seal rings, and gears as
needed.
CONVERTER CLUTCH
CHATTERS DURING
ENGAGEMENT WHEN
COLD
1. Low fluid level.
2. Incorrect fluid.
3. Torque converter fault:
(a) out of balance
(b) converter clutch failed
(c) turbine hub seal leak.
1. Top off level and check for leaks.
2. Drain and refill with MOPAR ATF Plus
type 7176.
3. Replace converter.
VIBRATION AFTER CON­
VERTER CLUTCH
ENGAGEMENT
1. Exhaust pipes grounding against
body.
2. Engine fuel or ignition problem.
3. Throttle valve cable needs
adjustment.
4. Converter balance problem or
internal damage.
1. Realign exhaust components.
2. Diagnose with DRB scan tool and repair
as needed.
3. Adjust cable.
4 Replace converter.
J9521-144