1991 Ford F-250 really bad gas mileage

1991 FORD F-250
125,000 MILES • 7.5L • V8 • 4WD • AUTOMATIC
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ANTHONY.WILLIAMS
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  • 4 POSTS
I recently bought a 1991 ford f250 xlt lariat 4x4 with an aod transmission and figured I was going to get about 10mpg around town and 15mpg on the hiway. So this last time i filled up my tank by the way it has dual tanks I only got like 160 miles out of the front tank! Any suggestions on what I can do to see why I'm getting such poor gas mileage and how can I fix the problem.

Thanks
Jul 8, 2014 at 8:12 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
well it is a 460 for one thing. but scan for codes and check fuel pressure with a gauge autoparts rent it. then check vacuum on intake if 15" or below suspect clogged exhaust.
Jul 8, 2014 at 8:16 AM
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