1996 Cadillac Seville engine problems

I paid for a new engine I believe rhat mataga of stockton rebuild my old engine. My old engine had sugar in the oil . Had the same tapping noise . Would like for them to prove it. I was told the 2000 engine have the same problem. I want it fix or replace.

The contact owned a 1996 Cadillac Seville. The contact stated while parked, the contact noticed smoke coming from the vents. The contact was able to exit the vehicle, and once the contact exited the vehicle, the vehicle burst into flames. The fire department was able to extinguish the fire. The contact was unsure if a police report was filed. No one was injured. The vehicle was towed and deemed a total loss. The manufacturer was not notified of the failure. The failure mileage was 100,000.