I have a 1985 4 cylinder Nissan truck. Yesterday while pulling out of the driveway, the truck stalled like it ran out of gas. Because my gas gauge is broken, I added 1 gallon of gas. I tried restarting 5-6 times with no luck. I next tried starting fluid into the carburetor, while my girlfriend cranked the engine. It ran briefly, but stopped running each time. I tried 5 times with the same results. The last 2 times, while the engine was running, a loud squeal came from the engine area. It sounded very bad. This morning, I drained the gas tank and found 4+ gallons. Can anyone help me get this truck running and explain the squeal?? Thanks in advance.