Walser Toyota

I purchased a 2011 Ford F-450 from Walser Toyota with 9,500 miles. I purchased it because it had such low miles. Upon further inspection of the truck when I got it home to my mechanic, the tires were original. This is not right as 11 year old tires are not good, however they paid for new ones. Then at about 12,000 miles the truck started running rough from time to time. My driver was on a trip and we couldn't do anything about it until it got back. When it got back it had 14,000 miles on it and we took it to Apple Valley Ford where they said the injectors were bad. This was a $2,500 fix and I knew I bought a used truck so I knew I had to pay for that, Walser did say they would pay $500 of it. When AV Ford got to the injectors they found it needed a new engine. This is a $18,700 fix. I called Walser and the best they would do is give me $2,500. I put 4,500 miles on this truck and it needed an engine!! That is just wrong. They said well we have a 3 month 3,000 mile warranty and that's it. They never offered me an extended warranty. I am very upset, I am a small business owner that can't afford to stick $18,700 in a truck that I just paid $55,000 for, which is well over the retail price and I was fine to pay it because it only had 9,500 miles on it and should last longer than a month and 4,500 miles. I would be very careful buying from Walser Toyota. I could have bought a brand new truck for what I will have into this 2011. They did say they would buy it back from me for $38,000. Which makes no sense as I would still be out the $18,000 plus. Very disappointed Walser. You should either buy this truck back from me for $55,000 or pay for the engine.