I have a 2005 Ford Taurus, after having my emissions testing done, the car sounds rough running and my gas gauge dropped drastically from 71 to 48 miles per gallon until empty within driving 22 miles. Averaging 14.3 gallons right now. Any suggestions?

Jean Fouch

Asked by Jan 21, 2014 at 10:56 AM

Question type: Maintenance & Repair

Had emissions testing on Friday, car sounds like it isn't running on full cylinders. It runs, drives fine, I don't see any fuel loss, but I'm averaging 14 miles per gallon, started at 71 and am at 43 miles until E after driving 22 miles.

1 Answer

Tom Demyan

Might be a misfire or vacuum leak. Might be coincidence, but maybe the emissions station removed or didn't connect a hose or wiring harness. Is your CEL on?

Your Answer

Add photo

Related Questions

  • I get 9 miles per gallon on my 1990 V6 4Runner. 5 answers

    I get 9 miles per gallon on my 1990 V6 4Runner, I have had it inspected several times and no one can find the poblem. This truck is great throughout and runs perfect with this one expection. Does anyo...

    1990 Toyota 4Runner


    Maintenance & Repair

  • my oil pressure gauge drops to 0 while driving 57 answers

    While driving my oil pressure gauge randomly drops down to 0. I have to pull over and shut off my truck for a minute or so and restart it. The gauge goes up a little or some times back to normal. How...

    2003 Chevrolet Silverado 1500 Ext Cab Short Bed 4WD


    Maintenance & Repair


    About a month ago my 1998 Mercury Grand Marquis started running rough after I pumped regular gas at a Chevron Station. As the car has 67,000 miles I took it to Sears Auto Center to have the spark plug...

    1998 Mercury Grand Marquis 4 Dr GS Sedan


    Maintenance & Repair

  • Average restoration cost 28 answers

    Need to repaint the body, overhaul 312 engine and 3 speed manual w/ over drive on a '56 T-Bird. What should it cost to repaint the Body? Cost for an average engine overhaul? Rebuild the transmissi...

    1956 Ford Thunderbird


    Maintenance & Repair

  • miles per gallon? 8 answers

    2008 Ford F-350 Super Duty Lariat Super Cab LB




Search Maintenance & Repair Questions

Maintenance & Repair Experts

#1 Tom Demyan
Tom Demyan
Reputation 145,710
#2 FordNut
Reputation 100,680
#3 dandyoun
Reputation 82,360
View All