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Why does your 1976 Datsun 280Z stall then die while driving?

There are several reasons why a 1976 Datsun 280Z may stall and die while driving. Here are some of the most common causes:

1. Fuel system issues:

- Clogged fuel filter: A clogged fuel filter can restrict the flow of gasoline to the engine, causing it to stall and die.

- Faulty fuel pump: A faulty fuel pump can fail to deliver enough gasoline to the engine, causing it to stall and die.

- Leaking fuel line: A leaking fuel line can cause the engine to lose pressure and stall and die.

2. Ignition system issues:

- Faulty spark plugs: Worn or damaged spark plugs can cause the engine to misfire and stall.

- Faulty ignition coil: A faulty ignition coil can fail to produce enough voltage to fire the spark plugs, causing the engine to stall and die.

3. Electrical system issues:

- Faulty battery: A weak or dead battery can cause the engine to stall and die.

- Faulty alternator: A faulty alternator can fail to charge the battery, causing it to run out of power and the engine to stall and die.

4. Engine issues:

- Vacuum leaks: Vacuum leaks can cause the engine to run lean and stall.

- Clogged air filter: A clogged air filter can restrict airflow and cause the engine to stall.

- Faulty oxygen sensor: A faulty oxygen sensor can cause the engine to run too rich or too lean, causing it to stall.

5. Transmission issues:

- Slipping clutch: A slipping clutch can cause the engine to rev high but the car to not move, which can cause the engine to stall.

- Faulty transmission: A faulty transmission can cause the engine to stall if it fails to engage the correct gear.

It's important to have your car diagnosed by a qualified mechanic to determine the exact cause of the stalling and get the necessary repairs done to prevent it from happening again.