mileage

1993 FORD TRUCK
134,000 MILES • 5.0L • V8 • 4WD • AUTOMATIC
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JOE GRATE
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  • 2 POSTS
50to60 miles per hr gets 19 to 20 mpgrunning 65mph gets 11 to 12 mpg. have replaced several sensors and timing chain and gears.Can there be a problem with the ignition advace system
Dec 27, 2015 at 1:03 PM
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WRENCHTECH
  • ✓ASE Certified Mechanic
  • 20,761 POSTS
  • ASE Certified Mechanic
Why are you throwing money away. That sounds normal to me.
Dec 27, 2015 at 1:52 PM
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JOE GRATE
  • MEMBER
  • 2 POSTS
Up till about 3 months ago the truck always averaged 19 mpg didn't matter if it was driven 50 mph or 75 mph on freeway.At 60 mph the engine runs at 1700 rpm.At 70 mph the engine runs at 2000 rpm. the sensors that were replaced were replaced do to failure. The TPS. fuel regulator,fuel pump and basic tune up. where it had a 19 mpg average before 11 to 12 mpg doesn't sound normal
Dec 27, 2015 at 4:36 PM
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WRENCHTECH
  • ✓ASE Certified Mechanic
  • 20,761 POSTS
  • ASE Certified Mechanic
Most all cars have an optimum speed for the best fuel mileage and the mileage decreases as the speed increases. Check the obvious things like tire pressure and engine temp. See if it is storing any engine codes.
Dec 27, 2015 at 4:47 PM
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