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Poor gas mileage - 2002 Acura MDX

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1999 mountaineer 5.0v8 awd a/t poor poor poor gas mileage 10mpg @ hwy speed 55mph ! What can be so wrong ? Help randallalt@aol.com thank U :-)


poor gas mileage with any vehicle is usually due to lack of maintenance.
options to try:
replace fuel filter
replace air filter
spark plugs
timing adjustment?
let me know if any of this helps

Sep 20, 2013 | 2005 Mazda B2300 Regular

1 Answer

Gas smell inside outside the car. poor gas mileage


Check the fuel hose and clamps from the filler to the tank .check hose for cracks . The smell will probably be strongest in the boot.

Mar 22, 2013 | 2005 Saturn VUE

1 Answer

Gas mileage poor and no check engine lights are on


MR Chriskrajesk have your lock up ck the lockup is in the transmission the lockup can make alot of things look bad but may not be you have a shutter you have poor gas mileage at a certian miles per hour the lockup comes on and becomes adirect drive thats what gives you agood gas mileage and also can make the car do different things when it isn't at least have it ck you might be surprise of the out come let us know what the problem was thk u

May 25, 2012 | 1998 Buick Century

1 Answer

What kind of mileage could you expect with 1986 pontiac parisenne with the v6 ??????????????


THAT MODEL CAR YOU COULD GET 18 MILES TO A GALLON OF GAS.BUT IF ENGINE WORN HAVE POOR COMPRESSION. YOU WILL GET POOR GAS MILEAGE.

Jan 03, 2011 | 1986 Pontiac Parisienne

2 Answers

Gas smell & poor gas mileage


Big chance of a leak somewhere.

Apr 17, 2010 | 1995 Toyota 4Runner

2 Answers

Buick regal 92 3.8L Horrible fuel mileage


Sounds like you might have an oxygen sensor problem. Your catalytic converter(s) maybe defective or dirty. That in turn can dirty up the oxygen sensor. A defective oxygen sensor will send faulty info to the computer, interpreting the fumes as cold (even when the engine warms up). That causes the computer to adjust the fuel mixture to very rich, giving you poor gas mileage and the fuel smell. Hope it helps.

Mar 16, 2010 | 1992 Buick Regal

1 Answer

Does the fuel filter affect gas mileage


there are lots of things that can affect gas mileage. if the spark plugs and wires are worn out, the air filter being dirty, dirty fuel filter, proper inflation of the tires, O2 sensors that are contaminated and performing poorly. the first thing to do would be that the engine is in good working order, as in no check engine light, no misfire, etc. a poorly running engine will put out terrible gas mileage. then you can start with the things i listed.

Feb 21, 2010 | 2002 Chrysler 300M

2 Answers

Strong gas smell and poor gas mileage


If the gas odor is coming from the engine, than the problem is most likely a cracked or poorly seated fuel injector.

May 03, 2009 | Chevrolet Cavalier Cars & Trucks

1 Answer

Poor gas mileage


sounds like a dirty fuel system or carb

Dec 02, 2008 | 1991 Honda Civic

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