 '96 F-250 5.8l Poor gas mileage and missing
Hey Fellas...
I have a 1996 F-250 5.8l with 213,000 miles. Been a great truck; however starting to have a problem that i cant figure out. Last year I started to have a problem with it not firing right and loss of acceleration power. I changed the plugs...was in a hurry and on the road so i didnt change the wires. The problem stopped. About a month ago I was moving back home to Montana from Maryland and the problem began again. I got to Indiana and changed the plug wires...they were SHOT!, as well as the rotor button and distributor cap. seemed to have fixed the problem. When i got on the road a few days later towards Montana, i noticed my gas mileage had sunk to 9.25 miles to the gallon...UGH...so i got to Kansas City and changed out the OxySensor thinkin that it may have been the problem. ?#1 Are there TWO on the 96? Second, What the heck is causing the poor gas mileage...its killin me ha. My thoughts are the timing may be off but a buddy said he thought it was electronically controlled. Its most noticeable, the poor running, if i am goin about 35-40 and try to maintain that constant speed where as in the past it was if i tried to accelerate...took out two of the spark plugs and they both looked fine...was in a hurry so didnt take them all out.
any suggestions.
thanks fellas
Hoosur | 
