1
TROUBLESHOOTING GUIDE
Problem
Possible Cause
Remedy
Page
Insufficient power
Insufficient compression
Malfunction of HLA
Compression leakage from valve seat
Seized valve stem
Weak or broken valve spring
Failed cylinder head gasket
Cracked or distorted cylinder head
Sticking, damaged, or worn piston ring
Cracked or worn piston
Replace
Repair
Replace
Replace
Replace
Replace
Replace
Replace
1 -6 9
1 -4 5
1—43
1—46
1 -1 6
1 -4 2
1 -5 1
1—51
Malfunction of fuel system
Refer to Section 4
Others
Slipping clutch
Dragging brakes
Wrong size tires
Refer to Section 6
Refer to Section 11
Refer to Section 12
Abnormal
combustion
Malfunction of engine-related components
Malfunction of HLA
Sticking or burned valve
Weak or broken valve spring
Carbon accumulation in combustion chamber
Replace
Replace
Replace
Eliminate carbon
1 -6 9
1 -4 3
1 -4 6
Malfunction of fuel system
Refer to Section 4
Engine noise
Crankshaft or bearing related parts
Excessive main bearing oil clearance
Main bearing seized or heat-damaged
Excessive crankshaft end play
Excessive connecting rod bearing oil clearance
Connecting rod bearing seized or heat-damaged
Replace or repair
Replace
Replace or repair
Replace or repair
Replace
1 -5 8
1 -5 8
1 -6 0
1-6 1
1-6 1
Piston related parts
Worn cylinder
Worn piston or piston pin
Seized piston
Damaged piston ring
Bent connecting rod
Replace or repair
Replace
Replace
Replace
Replace
1 -4 9
1-51,52
1-5 1
1-5 1
1 -5 2
Valves or tim ing related parts
Malfunction of HLA*
Broken valve spring
Excessive valve guide clearance
Malfunction of timing belt tensioner
Replace
Replace
Replace
Replace
1 -6 9
1 -4 6
1 -4 3
1 -5 5
Malfunction of cooling system
Refer to Section 3
Malfunction of fuel system
Refer to Section 4
$
’
Others
Malfunction of water pump bearing
Improper drive-belt tension
Malfunction of alternator bearing
Exhaust gas leakage
Replace
Adjust
Replace
Repair
1 - 6
1 -4 2
* Tappet noise may occur if the engine is not operated for an extended period of time. The noise should stop after the
engine has reached normal operating temperature.
86U01X-004
1—4
Summary of Contents for 626 MX-6
Page 1: ...Mazda 626 MX 6 1988 Workshop Manu ...
Page 12: ...1 OUTLINE OUTLINE STRUCTURAL VIEW 4BG01A 002 1 2 ...
Page 93: ...INSTALLATION 1 NON TURBO 86U01X 218 1 83 ...
Page 120: ...3 ELECTRIC FAN ELECTRIC FAN SYSTEM CIRCUIT 3 10 626 MX 6 Revised 10 87 ...
Page 127: ...Exhaust System 86U04A 005 4A 5 ...
Page 140: ...TROUBLESHOOTING WITH SST 4A Code No 12 Throttle sensor PC Possible cause 86U04A 025 r 4A 19 ...
Page 143: ... 4A TROUBLESHOOTING WITH SST Code No 17 Feedback system PC Possible Cause 86U04A 028 4A 22 ...
Page 207: ...CONTROL SYSTEM 4A Wiring Diagram 86U04A 172 4A 89 ...
Page 226: ...OUTLINE 4B Exhaust System 86U04A 005 4B 5 ...
Page 236: ...4B TROUBLESHOOTING WITH SST Code No 01 Ignition pulse PC Possible Cause 86U04B 007 ...
Page 244: ...4B TROUBLESHOOTING WITH SST Code No 12 Throttle sensor PC Possible cause 86U04B 015 4B 24 ...
Page 248: ...4 B TROUBLESHOOTING WITH SST v Code No 17 Feedback system PC Possible Cause 86U04B 019 ...
Page 378: ...5 DISTRIBUTOR H E I TROUBLESHOOTING Non Turbo 7BU05X 089 ...
Page 402: ...7A OUTLINE CROSS SECTIONAL VIEW Non Turbo I 86U07A 004 7A 4 ...
Page 403: ...OUTLINE 7A CROSS SECTIONAL VIEW Turbo 85U07A 005 7A 5 ...
Page 433: ...STEP 3 ASSEMBLY 7A 20 29 N m 2 3 m kg 626 MX 6 Revised 10 87 86U07A 083 7A 35 ...
Page 441: ...STEP 4 Torque Specifications ASSEMBLY 7A 86U07A 110 626 MX 6 Revised 10 87 7A 43 ...
Page 502: ...TROUBLESHOOTING 7B 86U07B 025 No 63 code display Lock up solenoid valve 86U07B 026 7B 19 ...
Page 516: ...TROUBLESHOOTING 7B 626 MX 6 Revised 10 87 7B 33 ...
Page 628: ...ASSEMBLY 7B ASSEMBLY STEP 2 Torque Specifications 86UQ7B 379 626 MX 6 Revised 10 87 7B 145 ...
Page 646: ...INSTALLATION 7B INSTALLATION TORQUE SPECIFICATIONS 626 MX 6 Revised 10 87 86U07B 440 7B 163 ...
Page 714: ...10 OUTLINE SPECIFICATIONS 86U10X 006 Note 2 Wheel steering is abbreviated 2WS ...
Page 717: ...TROUBLESHOOTING GUIDE 10 4WS Rear Steering Gear 1 0 9 ...
Page 722: ...10 ON VEHICLE MAINTENANCE Power Steering 4WS 86U1 OX 235 10 14 ...
Page 775: ...ENGINE SPEED SENSING POWER STEERING 10 10 67 ...
Page 790: ...10 ELECTRONICALLY CONTROLLED POWER STEERING 10 82 ...
Page 871: ...86U11X 141 2 z o g o ANTI LOCK BRAKE SYSTEM ABS 1 1 ...
Page 878: ...11 ANTI LOCK BRAKE SYSTEM ABS 86U11X 148 86U11X 149 86U11X 150 86U11X 151 11 68 ...
Page 906: ...1 3 OUTLINE OUTLINE STRUCTURAL VIEW Front Suspension 13 2 86U13X 002 ...
Page 907: ...OUTLINE 1 3 Rear Suspension 86U13X 003 13 3 ...
Page 926: ...Tightening torque 1 3 FRONT STABILIZER 4WS 13 22 86U13X 047 ...
Page 949: ...Tightening torque REAR CROSSMEMBER 4WS 1 3 86U13X 107 13 45 ...
Page 1029: ...INSTRUMENT PANEL 14 INSTALLATION VIEW 67U14X 003 ...
Page 1051: ...REAR WINDOW WIPER 14 86U14X 181 ...
Page 1058: ...14 UNDERBODY PROJECTED DIMENSIONS UNDERBODY PROJECTED DIMENSIONS f 14 104 86U14X 193 ...
Page 1068: ...LOCATION OF UNIT RELAY AND SWITCH 15 LOCATION OF UNIT RELAY AND SWITCH STRUCTURAL VIEW 15 7 ...
Page 1071: ...15 JOINT BOX AND FUSE JO IN T BOX AND FUSE STRUCTURAL VIEW 86U15X 006 ...
Page 1080: ...METER 1 5 DISASSEMBLY AND ASSEMBLY 86U15X 025 15 19 ...
Page 1082: ...METER 1 5 86U15X 028 15 21 ...
Page 1088: ...WARNING LIGHT AND SENDER 15 WARNING LIGHT AND SENDER CIRCUIT DIAGRAM 86U15X 047 15 27 ...
Page 1091: ...15 WARNING LIGHT AND SENDER 86U15X 053 Door Ajar Warning Light 86U15X 054 86U15X 055 ...
Page 1098: ...1 5 CENTRAL PROCESSING UNIT CPU CIRCUIT DIAGRAM L I 0 15 38 ...
Page 1101: ...TURN AND HAZARD LIGHT 1 5 CIRCUIT DIAGRAM 15 41 ...
Page 1108: ...1 5 HORN HORN STRUCTURAL VIEW 86U15X 089 CIRCUIT DIAGRAM 86U15X 090 15 48 ...
Page 1110: ...15 HEADLIGHT HEADLIGHT STRUCTURAL VIEW 86U15X 093 CIRCUIT DIAGRAM 86U15X 094 15 50 ...
Page 1111: ...HEADLIGHT 15 TROUBLESHOOTING 86U15X 095 86U15X 097 15 51 ...
Page 1115: ...REAR WINDOW DEFROSTER 1 5 TROUBLESHOOTING 86U15X 103 15 55 ...
Page 1117: ...POWER WINDOW STRUCTURAL VIEW POWER WINDOW 1 5 86U15X 108 15 57 ...
Page 1119: ...POWER WINDOW 15 TROUBLESHOOTING 86U15X 110 86U15X 111 15 59 ...
Page 1120: ...15 POWER WINDOW 86U15X 112 86U15X 113 15 60 ...
Page 1129: ...REAR WINDOW WIPER 15 TROUBLESHOOTING 86U15X 128 86U15X 129 K Vi 626 MX 6 Revised 10 87 15 69 ...
Page 1130: ...15 REAR WINDOW WIPER 86U15X 130 86U15X 131 15 70 626 MX 6 Revised 10 87 ...
Page 1134: ...1 5 WINDSHIELD WIPER TROUBLESHOOTING 86U15X 136 15 74 626 MX 6 Revised 10 87 ...
Page 1135: ...WINDSHIELD WIPER 15 86U15X 137 86U15X 138 626 MX 6 Revised 10 87 15 75 ...
Page 1136: ...15 WINDSHIELD WIPER 86U15X 141 86U15X 142 15 76 ...
Page 1139: ...CRUISE CONTROL SYSTEM 1 5 CIRCUIT DIAGRAM 86U15X 147 15 79 ...
Page 1146: ...1 5 SLIDING SUNROOF CIRCUIT DIAGRAM 15 86 ...
Page 1154: ...15 AUTO ADJUSTING SUSPENSION Inspection of circuit 86U15X 159 86U15X 160 15 94 ...
Page 1161: ...POWER DOOR LOCK 15 POWER DOOR LOCK STRUCTURAL VIEW CIRCUIT DIAGRAM BATTERY 86U15X 171 15 101 ...
Page 1166: ...15 AUTOMATIC SHOULDER BELT TROUBLESHOOTING 86U15X 177 r 15 106 ...
Page 1170: ...15 AUDIO SYSTEM OUTLINE OF AUDIO SYSTEM 15 110 86U15X 181 ...
Page 1171: ...AUDIO SYSTEM 15 REAR CONECTOR VIEW 86U15X 250 15 111 ...
Page 1184: ...15 AUDIO SYSTEM POWER ANTENNA STRUCTURAL VIEW 1 Antenna motor 2 Antenna r 15 124 ...
Page 1192: ...00 CD c ro o CD ...
Page 1201: ...THEFT DETERRENT SYSTEM 15 TROUBLE SHOOTING 86U15X 253 15 141 ...
Page 1227: ...SPECIAL TOOLS 40 ENGINE ...
Page 1235: ...FOR TURBO IGNITION SYSTEM E N G I N E FUEL CONTROL SYSTEM 5 0 2 6 ...
Page 1236: ...50 W IR IN Q D IA G R A M 5 0 2 9 ...
Page 1240: ...50 61 ...