My fuel gauge reads between empty and 3/8 of a tank left, with no coordinatin to how much fuel is in the tank. Is this a problem with the senor in the tank? And can it be replaced without major surgery? The Rodeo has 138,000 miles on it. the problem has been around for about 2 years.

R :screwy:

You need to replace fuel sending unit, more info on faq page.
http://www.isuzufaq.com/