We had called for service because the forklift was making a whistling noise and would barely move. The engine wasn't stalling or bogging down. The tech who came to the site said that it needed a fan belt and that the exhaust was leaking. They took the lift back to their shop and called us to say the muffler had over a gallon of water in it and the cat needed to be replaced. When we got the bill, they also noted that they had rebuilt/replaced the carb but didn't charge us for that. Would the forklift even run with a gallon of water in the muffler?