Mazda 1990 323 Workshop Manual Supplement page 253

TROUBLESHOOTING GUIDE
TRANSAXLE NOISY IN D, S, L AND R RANGES
IESCRIP-
l
Noise corresponds to vehicle speed
'ION
TROUBLESHOOTING HINTS]
0 ATF level low
8 Differential backlash incorrect
3 Torque converter worn
9 Oil pump worn
2
3
INSPECTION
Check if ATF level is OK
w page K2-134
Level:
Between notches on HOT side of level
gauge at 65% (149OF)
HOT RANGE
I-
COOL RANGE
Check if ATF condition is OK
w page K2-134
@ Clear pink: Normal condition
@ Dark or black (with friction material): Worn
powertrain components
@ Milky pink: Water contamination
@I Light to dark brown (Oxidation): Overheated
or old fluid
Check if engine stall speed is OK
w page K2-119
Engine stall speed: 2,550-2,650 rpm
T
Yes Go to next step
ACTION
No Add ATF to specified level
Yes
No
Yes
No
w page K2-134
Go to next step
No.2 condition
Overhaul transaxle and repair or
replace parts as necessary
No.3 or No.4 condition
Replace ATF
w page K2-134
Go to next step
Check for cause (Refer to Evaluation)
c7 page K2-121
K2-77