When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The sending unit in the tank gets corroded and doesn't respond like it should. My 87 shows full all the time when it gets down to 5 gallons it shoots to "E" the other tank does the same except it bounces around a bit. Pretty common for this to happen