Irving Edwards Auto Repair

I brought my 2001 Isuzu rodeo to Irving Washington to replace the engine. 3 months later, and suddenly the four-wheel drive stalls the car out, and I'm having transmission issues with a flashing transmission light on my dash. I paid 1700 on a 2,400 bill. When I saw how the truck was running I asked him to fix the issues it now had, and he simply said pay me the rest of my money and take it like it is. He said that this engine didn't have a camshaft sensor, which tells me he didn't buy the right engine for my vehicle. And he is also refusing to fix it. I'm currently trying to come up with the rest of the money I owe him just to trailer that truck to another shop and have them fix what he did.