excessive gas usage on 1998 Ford Explorer

Just recently my gas consumption has skyrocketed, at first I thought someone had been ciphening my tank. Could it be the 02 sensors? It's a V8.

by in Fort Wayne, IN on November 25, 2009
1 answer 2 comments
ANSWER by on November 25, 2009
Do you have a check engine light on? I've had this problem, but it came with a check engine light and ended up being the thermostat.
COMMENT by on November 25, 2009
Yes the check engine has been on since I bought it a year ago, it was checked at the dealership but they told me it wasn't a big deal, that it was a sensor or something, it has run great but just recently the gas consumption issue.
COMMENT by on November 25, 2009
Five will get you 10 that the problems are related. You got horrible advice at the dealership . . . if you've got that documented, maybe use it against them. Take the truck to a shop for a full diagnosis. I'm worried that letting it go could damage expensive components, like the catalytic converter. http://repairpal.com/check-engine-light