I live in California, and found a Jeep Grand Wagoneer for sale on Craiglist, so I made arrangements to fly up to Washington and bring the car home. I bought the car from a private party. The listing looked good and the car was said to have a new motor with less than 3,500 miles on it, and the seller said he had the receipts to prove this (though I never saw them). I brought the car back to California, and found out after the sale that the engine would not hold proper compression and therefore will not pass smog. I tried several times to contact the seller and got a hold of him once. He still states the engine is good, but said he will work with me to make it right. However ever since he has not answered my phone calls or emails. Do I have any sort of legal leg to stand on in regards to having him make this right, or take the car back, or am I just screwed on this thing?