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TRANSMISSION-TORQUEFLITE
DIAGNOSIS
2 1-35
Condition
Possible Cause
Correction
GRATING, SCRAPING
O R
GROWLING NOISE
BUZZING NOISE
HARD
TO FILL, OIL
FLOWS OUT FILLER
TUBE
TRANSMISSION
OVERHEATS
IMPOSSIBLE
TO
PUSH START
(c) Kickdown and/or low-reverse servo,
band, linkage malfunction.
(d)
Front and/or rear clutch faulty.
(e) Planetary gear sets broken or seized.
(f) Overrunning clutch worn, broken or seized.
(a) Kickdown band out of adjustment.
(b) Low-reverse band out of adiustment.
(c) Output shaft bearing or bushing damaged.
(d) Governor support binding or broken seal rings.
(e) Front and/or rear oil pump scored or binding.
(f)
Front and/or rear clutch faulty.
(9) Planetary gear sets broken or seized.
(h) Overrunning clutch worn, broken or seized.
(a) Low fluid level.
(b) Pumps sucking air.
(c) Valve body malfunction.
(d)
Overrunning clutch inner race damaged.
(a) High fluid level.
(b) Breather clogged.
(c) Oil filter clogged.
(d) Aerated fluid.
(a) Low fluid level.
(b) Kickdown band adjustment too tight.
(c) Low-reverse band adiustrrent too tight.
(d) Faulty cooling system.
(e) Cracked or restricted oil cooler line or fitting.
(f) Faulty rear and/or front oil pump.
(9) Insufficient clutch plate clearance in front
and/or rear clutches.
(a) Low fluid level.
(b)
Low-reverse band slipping.
(c)
Inspect the servo for sticking, broken seal rings,
binding linkage or faulty band lining. Repair as
required.
(d) Disassemble and inspect clutch. Repair or re-
place as required.
(e) Inspect the condition of the planetary gear sets
and replace as required.
(f) Inspect the condition of the overrunning clutch
and replace parts as required.
(a) Adjust the kickdown band.
(b) Adjust the low-reverse band.
(c) Remove the extension housing and replace the
bearing or bushing.
(d) Inspect the condition of the governor support
and repair as required.
(e) Inspect the condition of the pump and repair
as required.
(f) Disassemble and inspect clutch. Repair or re-
place as required.
(9) Inspect the condition of the planetary gear sets
and replace as required.
(h) Inspect the condition of overrunning clutch and
replace parts as required.
(a) Refill to the correct level with Automatic Trans-
mission Fluid, Type "A,"
Suffix "A."
(b)
Inspect the pumps for nicks or burrs on mating
surfaces, porous casting, and/or excessive rotor
clearance. Replace the parts as required.
(c) Remove and recondition the valve body assem-
bly.
(d)
Inspect and repair the clutch as required.
(a) Drain the fluid to the correct level.
(b) Inspect and clean breather vent opening in
front pump housing.
(c)
Replace the oil filter.
(d) Inspect for air leakage into front pump suction
passages.
(a) Refill to the correct level with Automatic Trans-
(b) Adjust the kickdown band.
(c) Adjust the low-reverse band.
(d) Inspect the transmission cooling system, clean
and repair as required.
(e) Inspect, repair or replace as required.
(f)
Inspect the oil pump for incorrect clearance, re-
pair as required.
(9) Measure the clutch plate clearance and correct
with the proper size snap ring.
mission Fluid, Type "A,"
Suffix "A."
(a) Refill to the correct level with Automatic Trans-
(b)
Adjust the low-reverse band.
mission Fluid, Type "A,"
Suffix "A."
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