I have a 99 F-250, 7.3. It has 286k miles and runs like a dream. I have averaged 19 mpg for the last three years. All of the sudden it a dropped to 14.7.
It smells like its running rich. I have been told it may be a temp sensor. This is my first diesel so I'm new at it. Any suggestions?
It smells like its running rich. I have been told it may be a temp sensor. This is my first diesel so I'm new at it. Any suggestions?