My Scanguage II looks like it is starting to go bad. Last night I noticed that the miles per gallon was reading down in the 1.3 - 2.4 MPG range while cruising in 5th gear at 2400 RPM. This was on a level hiway.
Normally on this same stretch of road it reads 22-25 MPG at this speed and RPM.
My truck is a 2001 S-Runner with the 3.4 Liter motor and 5 speed rear wheel drive.
Anyone got any idea what's going on?