hi guys,

i have a 1993 vp commodore station wagon series 2 with 346,000 ks......when i run the car with air con on it seems to jolt when accelarating ( like there is a fuel blockage ) i also find in hot weather, 30 degrees plus with the air con on the car cuts out completly and i have to let it cool down and turn the air con off to drive again. in the past year i have replace the crank angle censer and fuel filter. i was thinking of flushing the cooling system and getting new spark plugs and leads ( leads and plugs are 16 months old) do you think this will help? and what other things could i do to make the car better. i'm not able to buy a new car yet and would like to get this car running well for the summer,

thanks for any advice you have