Starting then cutting out after 30 seconds

Car is starting but cutting out after 30 seconds. RAC suggested coil pack failure. Garage have replaced this but fault remains. They are now checking the timing as they say this could be damaged by the coil pack failure. When RAC were checking the car I thought I could hear air escaping from somewhere in the engine. Any suggestions?

Thanks.

Welcome to the forum car2512

Car is starting but cutting out after 30 seconds. RAC suggested coil pack failure. Garage have replaced this but fault remains. They are now checking the timing as they say this could be damaged by the coil pack failure. When RAC were checking the car I thought I could hear air escaping from somewhere in the engine. Any suggestions?

I don't see how the coil pack failure would affect the timing

I suggest you get some diagnostics run, to read the fault codes. This can help pin-point troublesome areas rather than just guessing.

Have a look at this ODB and Lexia topic for some suggestions on OBD2 readers, but Lexia is the top dog when it come to reading C3 codes.