Car troubleshooting Mazda 626 (3rd and 4th gen)

Engine Troubleshooting
Engine won't start Loose or corroded battery connections ( Section 5 ) Discharged or defective battery ( Section 5 ) Faulty, loose or open wiring in the starter circuit...

Troubleshooting the cooling system
Overheat Not enough coolant in the system ( Section 1 and 3 ) Thermostat defective ( Section 3 ) Clogged radiator core ( Section 3 ) Faulty cooling fan or thermoviscous...

Troubleshooting the fuel and exhaust systems
Excessive fuel consumption Air filter element dirty or clogged ( Section 1 ) Carburetor worn or incorrectly adjusted ( Section 4 ) Choke cable adjusted incorrectly or...

Clutch failure detection
Pedal fails - no pressure or very little resistance Broken clutch cable ( Section 8 ) Faulty automatic clutch pedal adjustment mechanism ( Section 8 ) Damaged release...

Troubleshooting a mechanical transmission
Noise when driving with the lever in neutral Worn input shaft bearings (noise goes away when clutch pedal is depressed) ( Section 7 ) Worn release bearing (the noise...

Troubleshooting automatic transmission
Note: Due to the complexity of the automatic transmission device, it is very difficult to properly diagnose and troubleshoot this unit on your own. For problems not...

Troubleshooting Drive Shafts
Clicking and tapping on turns (at low speed with the maximum angle of rotation of the steered wheels) Not enough lubrication in the CV joint ( Section 8 ) Worn outer CV...

Troubleshooting the brake system
Note: Before concluding that the brake system is faulty, check the front wheel alignment, tire condition and tire pressure. Also make sure that the vehicle is not...

Troubleshooting suspension and steering
Note: Before concluding that there is a suspension or steering problem, make sure that the problem is not caused by abnormal tire pressure, wheel braking, or the fact...

Troubleshooting the electrical system
The battery does not hold a charge for more than a few days Battery internally defective ( Section 5 ) Low electrolyte level ( Section 1 ) Battery terminals are loose or...