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7A3-10
1 9 7 7 PONTIAC SERVICE MANUAL
Locks up in manual
low (usually hot
only).
1. Converter pressure
leaking into direct
clutch thru stator
shaft.
2. Direct clutch.
1. Check stator shaft index.
2a. Direct clutch bore undersize
or piston oversize.
b. Direct clutch feed hole shy
small chamber.
- -
Second gear start
or slips second
1. Intermediate clutch
gear only.
1. Wrong number of clutch plates
or wrong piston.
Locks up in reverse
(usually hot only)
1. Forward clutch.
2. Direct clutch.
1. Bore undersize or piston
oversize.
2. Direct clutch feeding forward
clutch thru stator shaft
(check stator shaft index).
-
-
Locks in reverse from
park to reverse only.
-
1. Parking pawl.
1. Parking pawl staying in
due to a burr on leading edge.
Cold morning reverse
no drive till engine
warms up.
1. Pressure regulator
bore or sleeve tight.
1. Remove and repair.
Shifts cold but not
warm.
1. Governor assembly.
1. Nylon gear roll pin shy.
No drive
-
but has
1. Low reverse roller
1. Low reverse roller clutch
manual low.
clutch.
installed backwards.
No 1-2 shift
-
makes
1-3 shift and 3-1
shift, but has all
shifts manually.
- -
1. Intermediate roller
clutch.
1. Intermediate roller clutch
not locking.
Governor nylon gear
1. Case pin.
1. Governor case pin missing.
stripped 360".
2. Output shaft.
2. Output shaft rough or worn.
Governor gear stripped
one side.
1. Governor sizing in
bore.
1. Repair or replace as necessary.
Slow reverse
1. Low oil level.
1. Adjust oil level.
(cold only)
Harsh 1-2 shift.
1. 1-2 accumulator.
la. Piston or spring.
b. Accumulator feed hole in
valve body plate.
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