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What causes car to stall while driving then be able start again after bout 30 minutes sitting there?

Here are a few reasons why a car might stall while driving and then be able to start again after sitting for about 30 minutes:

- Fuel System Issues:

- Clogged fuel filter

- Faulty fuel pump

- Malfunctioning fuel injectors

- Ignition System Problems:

- Worn-out spark plugs

- Faulty ignition coils

- Bad distributor cap or rotor

- Ignition system relay

- Air System Issues:

- Clogged air filter

- A dirty mass airflow (MAF) sensor

- Electrical Problems:

- Loose or corroded battery connections

- Bad alternator

- Faulty voltage regulator

Note: If the stalling issue persists, it's important to have your vehicle diagnosed by a professional mechanic to determine the exact cause of the problem and have it repaired correctly.