Mazda MX-6 1998, Workshop Manual

Page: 721 / 1282

TROUBLESHOOTING [LA4A-EL]
STEP INSPECTION ACTION
Improper pressure
• Is there low line pressure?
er 0 5 -1 7A MECHANICAL SYSTEM TEST
[LA4A-EL], Line Pressure Test
Yes Check the line pressure
If pressures are low or all shifts are soft/slipping, go to step
6
If pressures are okay and a specific shift is soft/slipping,
refer to the following chart:
Shift
No shift
1-2 16
2 -3 17
3 -4
18
4 -3 19
3 -2
20
2-1 21
No Go to next step
W 6 U 5 0 1 W A G
Control valve body
• Do any of the following problems exist?
• Bolts are not torqued to specification
• Gaskets are damaged
• Main regulator valve, line modulator valve
are stuck, damaged, or misassembled, or
springs are missing, tangled or damaged
• Electrical pressure control (EPC) solenoid
is stuck or damaged
• Separator plates are damaged, or blocked
• Pressure tap plate/gasket are damaged, or
missing
Yes
Service as required
No Go to next step
Oil pump
• Do any of the following problems exist?
• Bolts are not torqued to specification
• Gaskets are damaged
• Porosity/cross leaks
Yes
Service as required
No Go to next step
Oil filter and seal component
• Do any of the following problems exist?
• Filter/seal is damaged, plugged, or missing
• Recirculating seal is damaged, or out of
position
Yes Service as required
No The problem is not in the automatic transaxle
Go to engine symptom troubleshooting
c r 01-01A ENGINE SYMPTOM TROUBLESHOOTING
[FS]___________________________________________
10 SHIFT CONCERN: FEEL — HARSH
[TROUBLESHOOTING HINTS]
• ATF
• Powertrain control system
• Joint shafts
• Engine mounts
• Improper pressure
• Control valve body
• Torque converter component
STEP
INSPECTION ACTION
1 ATF
• Are there any problems with the following?
• Level
Yes Service as required
• Condition
D- 0 5 -1 7A AUTOMATIC TRANSAXLE
FLUID (ATF) INSPECTION [LA4A-EL]
No
Go to next step
0 5 -0 1 A -4 6