View Single Post
Old November 21st, 2018, 21:11
lawsoncl lawsoncl is offline
NAXJA Forum User
Join Date: Jan 2006
Location: North Idaho
Posts: 5,314
Re: Sudden drop in fuel economy

Originally Posted by XJ99JEEP View Post
I just had a sudden drop in my fuel economy that is pretty noticeable. I donít see any leaks in any fuel lines or anything. Is there a chance that my O2 sensors finally took a crap or that my map sensor is bad. Any opinions that could lead to a resolve?

Possibly. Is the engine fully warming up? I'm thinking stuck thermostat which should be obvious on the dash or a bad coolant temp sensor which can be tested with a multimeter.
Reply With Quote