Question about 2002 Buick Park Avenue

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Poor fuel mileage on my Park Ave 2002, my '97 got 5-7 mpg better. What do you think- I do not have a check engine light on.

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When was the last time you did a basic tune up. plugs, air filter etc

Posted on Mar 25, 2011

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Poor fuel economy on hiway 22 or 23 mpg 2002 Park Ave My 1997 consistently got 28-32 mpg


have you tired changing air filter, spark plugs and wires that may help

Mar 04, 2011 | 2002 Buick Park Avenue

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How can i get better gas milage i'm only getting 13.5 mpg


You need to put the car in good conditions like:
-engine oil
-air filter
-Tires pressure
also aling the front wheels
Can be many factors.

Oct 29, 2010 | 1995 Buick LeSabre

1 Answer

I have recently bought a Jeep Cherokee 2.4 Sport petrol (2005) and believe that the fuel consumption is excessive. It was serviced and MOTd from a reputable company on purchase but I only average 352...


Unless you have an engine light on, the first thing I would check is tire pressure. You should run at least 35 psi. Tire size can make a big difference also, smaller is better. If you have very large off-road tires, you will pay for poor rolling resistance. Use skinny, tall tires for better mileage. The other obvious item would be the air filter, make sure it is new every 10,000 miles. The computer is programmed to deliver fuel for an expected amount of air delivery, if the air can't get through, it will run rich and get poor mileage and performance.

Sep 08, 2010 | Jeep Cherokee Cars & Trucks

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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

2 Answers

1998 buick park ave ultra service engine soon light will come on the go off in 2 weeks then returns about 1 month later took it to serval mechanics shows no problems fuel average goes down to 16 mpg


you have a paracitic load on the engine, even if the light has gone off the code will still be stored in the computer until someone clears it, get it read out and it will give you a pretty good idea of what set it off

Feb 25, 2010 | 1998 Buick Park Avenue

2 Answers

High fuel consumption, what is its normal consumption per 10 litres


hello Fuel Type Regular MPG (city) 25 MPG (highway) 34 MPG (combined) 28

Feb 22, 2010 | 2000 Toyota Camry

2 Answers

I get very poor gas mlieage. i used to get 300 miles per tank, now it dropped its way down to 250. replace O2 sensors maybe?


anytime a complaint is poor fuel milage and all diagnostics prove to be ok and the 02 sensor(s) have over 70th on them we replace them.

Do not replace the one (s) after the catalytic converter. They have very little to do with fuel control.

Also if you have a MAF in the intake near the air filter these become dirty and sometimes can be cleaned.
When they get dirty the computer will not see the air and in return will not add enough fuel.

Feb 11, 2010 | 1999 Isuzu Rodeo

1 Answer

Poor Gas Mileage


its on the fire wall yes it will help some i wouldnt expect a drastic change in fuel economy because acura dosent have a replacement schedule for fuel filters like most car companies. id check your air filter and if your check engine light is on it will seriously kill your mpg. hope this helps

Oct 01, 2009 | 1998 Acura CL

1 Answer

Tuck misses when decelerating, Poor mileage.


to much fuel pressure or bad vacume line

Mar 23, 2009 | 2007 Mazda B4000

1 Answer

Poor Fuel Mileage 2006 Hyundai Sonata 2.4 motor


I don't know from where you bought the car but do you feel certain that typical causes such as fouled plugs or clogged air filters are not at fault?
Most dealers, even the shlocks don't normally skimp on the simple stuff but who knows about a private source?
That does seem low, especially the city numbers. I don't think Hyundai is any leader in gas mileage but they are better than what you are getting.  

Dec 24, 2008 | 2006 Hyundai Sonata

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