If your Rodeo or Passport is having fuel gauge issues you most likely need a new fuel sending unit. Isuzu should have done a recall onthese, but they did not. They do not have a replacement sending unit listed for a 98-02 Rodeo, however, they do have some from some dealers. I have several for sale. I installed one in my 2000 Rodeo and it works great. I finally have a correct reading gas gauge and my check engin light went out! They sell for around $80.00 at the dealer, but I sell them at about 1/2 of that price. You can email me at anicol@cfl.rr.com or look for awnicol25 on eBay. I include installation instructions and seals and clips. Let me know if you need one. Thanks!

Or puchase one from St. Charles Isuzu for the same price with FREE shipping.