I am not having the best of luck with this car exhaust manifold cracked and by the time I could afford to replace it the catalytic converter went out leaving holes and shrapnel in the cat replaced the cat with ebay part because my cat isn't available at the moment and I only have one source of transportation well I heard a leak went to check everything and the exhaust manifold is cracked in half again same spot and I am so confused it doesn't read hot I have put 113000 miles on this car but I don't know what to do what would cause this to happen its reading P0420 bank 1 I replaced a 02 sensor also spark plugs and new alternator just seems to be a lot of problems for a car I'm still trying to pay off what do I do what all do I check I'm gonna look at the motor mounts and hangers for exhaust as well as replace caps but at this point I could be purchasing a used car please help me troubleshoot the mechanics in the north state of California do not want to touch my car or as they said to open a can of worms 

Thank you in Advance 

Heather Sanchez 

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