This is a tough one to answer. The overall condition of the vehicle really is what is important. However, I will recommend this. Go to KBB. Com and see what the market value is of the vehicle. If it is very low, then I wouldn't put much into it. With that many miles, everything starts to wear out. The engines are strong and will keep going (if properly maintained). As far as the problems, the fuel gauge could be a bad sending unit in the tank, body control module, bad ground. The noise when turning could be the start of a bad rack and pinion, bad pump. The knocking sound in the brake could be rotors, drums. It is so hard to tell not being there. As far as the rain, chances are the rear brake drums are glazed and out of round. Dampness plays tricks on them. Often they lock up for the first few miles.
Check out the vehicle's value and determine if it is worth putting more into it or replacing it. It sounds like you have done all you can do and still have problems. Sometimes it is better to cut your losses and move on.
Let me know if you have other questions.
Sunday, September 11th, 2011 AT 5:07 PM