1999 Ford Contour bad gas mileage

1999 FORD CONTOUR
70,200 MILES • 6 CYL • FWD • AUTOMATIC
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NOISECONTROL1
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  • 1 POST
I only do stop-and-go city driving,mostly making two short trips daily. I am getting 9-10 mpg,very far below EPA city standards for this car. Car starts easily, and responds quickly. No coughing, no stalling, no smoke, no smell, no funny noises, no missing, and no trouble codes.Using regular gas.No jack rabbit starts.Just a smooth running car.

1.New carb air filter;
2.New fuel filter;
3. Recent Oil change
4. Tire pressures good
5. No dragging brakes
6. PVC okay
7. new thermostat
8. no transmission issues
9. no visible fuel leaks or fuel odors.
10.Cat. converter seems okay
11.idle rpm is steady

What ails this car?
Dec 24, 2007 at 10:29 PM
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MERLIN2021
  • CERTIFIED EXPERT
  • 17,250 POSTS
Fuel mileage can be affected by a vacuum leak
get a can of spray gumout, spray the vac lines and maniflod area, when the idle changes, youve found the leak! Bad 02 sensor(s), Bad ECT Faulty EGR, PCV,
PCM!
Dec 25, 2007 at 9:09 AM