Small problem...i think

Need help!!! Car is stalling when i dont accelerate and when im
driving it starts jerking. Left car for 24 hrs came back to it and it
was fine, drove for minutes no probs. left car for around half an hour
went to drive it and was doing the same thing. Then after a few
minutes problem went away, turned off engine for couple of minutes
then it was not working again. It is a petrol model. Sure i never put
diesel in it as I put fuel in car day before and drove it for miles so
certain thats not the problem.
Have been driving the car about as after driving car through jerking
and stalling for 10 mins it goes away. Seems to me that it is a very
minor problem. Seeing as its after xmas dont wanna put in a garage,
have tried changing ht leads, didnt resolve issue. Suince i dont know
mucj bout cars have to think logically and am considering changing
fuel filter, do you think this will resolve the problem>? or any other
ideas?
Appreciate any help
George

 

Sounds like petrol pump.when it gets hot the bellows inside are so weak
that it is not getting full mount pertol , so try and see what pressure
you got at pump.could be plugs breaking down when hot ,so try pump
first,chris addlestone surrey.( i have to open )