Mazda 1978 GLC Instructions; Maintenance And Servicing page 63

MINOR TROUBLESHOOTING GUIDE
The following procedures may be of help jf any of
the problems listed below occur. These suggestions
are only intended as emergency measu res. If you are
in doubt whether the problem is fully corrected. see
your Mazda dealer as soon as possible. Minor pro·
blems may become serious, if neglected.,
ENGINE Will NOT START
IF THE ENGINE WILL NOT TURN OVER , inspect
these . items:
1. Ign,(tion switch.
2. Fuses, including master fuse in engine compartment.
3. Battery and connections.
4. Cable connections to starter and solenoid.
5. Automatic transmission selector, to see if it is in
neutral or park.
IF ENGINE TURNS OVER, BUT WILL NOT START,
inspect these items:
1. Fuel gauge, to see if tank is empty.
2. Ignit ion system - distributor leads, coils, breaker
points (California vehicles only), ignition timing.
3. Spark plugs.
4. Carburetor for flooding and fl.l.el supply to car·
buretor.
5. Choke mechanism .
6. Battery.
7. EGR control valve.
8. PCV valve.
9. Valve train.
10. Anti·afterburn valve.
7-19
ENGINE WILL START, BUT .....
IF THE OIL PRESSURE WARNING LIGHT COMES
ON, inspect these items:
1. Engine
oil level.
2. El ectric circuit and switch.
IF THE ALTERNATOR WARNING LIGHT COMES
ON, inspect these items:
1. Fan belt, to see if it is broken or needs adjustment.
2. Alternator and vOltage regulator.
3. Battery and connections.
IF STALLING OCCURS WHILE IDLING, inspect
these items:
1. Carburetor idle speed adjustment.
2. Choke mechanism.
3. Carburetor for flooding and fuel supply to car·
buretor.
4. Spark plugs.
5. Evaporative emissio n control system.
IF IDLING IS ROUGH , check th ese items:
1. Air cleaner.
2. Choke mechanism .