Toyota Celica Supra 1986 Service And Repair Manual page 301

\
AT-26
Abnormal Noise
VIbration
I • •• • • • • •
I
'
.
~ ~~
;
.....
~
i /
•
AUTOMATIC TRANSMISSION - Road Test
Al OHJ
4 10l'll
•ton•
"""'
(c) Run in the 00 gear of the "0" range and with U.
lock-up in operation. and check f or abnormal noise
Of
vibration.
NOTE: Check f or cause of abnormal noise and vibratioo
must be made with extreme care as they cwld also
ba
1M
to unbalance in the propeller shaft. differential, tire, tor·
que converter, etc. or insufficient bending rigidity, etc.,
in
the power train.
(d) W hile running in "0" range 2nd. 3rd gears and
00,
check to see that the possible kick-down vehicle
opeod
limits f or2- 1, 3- 1. 3-2. 00- 3and00-
2 kick-downs conform to those indicated on the.,.
tomatic shif t diagram.
{e) Check f or abnormal shock and slip at kick-down.
(f)
While running in " 0" range 00 gear, shift to "2" ani
"L" ranges and check the engine braking eHact
It
each of t hese ranges.
EVALUATION
(1 l If there is no engine braking effect at " 2" range:
• Brake No. 1 Is defective
(2) If there is no engine braking effect at "L" range:
• Brake No. 3 Is defective
2. " 2" RANGE TEST, WITH NORM AND PWR PATTERNS
Shift into "2" range and w hile driving with the accelorl-
tor pedal held constant at specified point {throttle viM
opening 50
'J(,
and 1 DO %land push in one of the pattlll
selectors, check on the following points.
tal At each of the above throttle openings, check to
see
that 1 - 2 up-shift take place and also thattha shih
points conform to those shown on the automatic shih
diagram.
NOTE: There is no 00 and no lock-up in "2" range.
(b) While running in " 2" range. 2nd gear, release the IC·
celerator pedal and check the engine braking effea.