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Vauxhall astra van starting problems when hot Can starts but then cuts out after 3 - 4 minutes will not start again there is fuel at the filter and in lines?

There are a few potential causes for this issue:

* Fuel vapor lock: This occurs when the fuel in the fuel line turns into vapor, blocking the flow of fuel to the engine. This is most common in hot weather, when the fuel tank and fuel lines are exposed to high temperatures.

* Faulty fuel injector: A faulty fuel injector can cause the engine to run too lean, which can lead to stalling.

* Faulty ignition coil: A faulty ignition coil can cause the engine to misfire, which can also lead to stalling.

* Clogged catalytic converter: A clogged catalytic converter can restrict the flow of exhaust gases, which can cause the engine to run poorly and stall.

To diagnose the problem, you will need to check the fuel pressure, inspect the fuel injectors, and test the ignition coils. You may also need to have the catalytic converter inspected.

Once you have identified the cause of the problem, you can then repair or replace the faulty components. Here are some tips for preventing this problem from occurring in the future:

* Keep your fuel tank at least half full to prevent fuel vapor lock.

* Park your vehicle in the shade whenever possible.

* Use a fuel additive that contains a vapor lock inhibitor.

* Have your vehicle's fuel system inspected and serviced regularly.