i am in need of a oil pan gasket...... can this cause stalling and a clanging

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it has been stalling and has a very loud clanging sound it soundn like it is in the front right part of the car....... i had brought it to get servicd to sears... they replaced sparks wires filter pvc valve, valve gasket cover, and some fluids they said it needs a oil pan gasket... so it was brought home went for a ride sounded ok next day driving in town and it was making the clanging sounds nad also felt like it wanted to stall..... oil leak was found .... so how much is a oilpan gasket and can that new gasket end the clanging sound.... thank you