'97 Elantra - Low MPG

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Mike Gottesman - 26 May 2004 13:43 GMT

I have a '97 Elantra Wagon with about 60,000 miles. I had been getting low
gas mileage (19 to 20) for a while. I had some muffler work done at which
time I discovered that the exhaust manifold was cracked. I had that repaired
and assumed that was the cause of the low mpg.

Surprisingly, the mpg has not changed. It's still around 20. Now I know
that the EPA estimate which is usually a little high is 27/32. Any ideas
about this from anyone would be appreciated

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Lindyhop - 26 May 2004 15:15 GMT

> I have a '97 Elantra Wagon with about 60,000 miles. I had been getting low
> gas mileage (19 to 20) for a while. I had some muffler work done at which
[quoted text clipped - 4 lines]
> that the EPA estimate which is usually a little high is 27/32. Any ideas
> about this from anyone would be appreciated

What gas mileage did you get earlier on, and how are you measuring the gas mileage? Have you taken a freeway trip and checked the mileage in sustained high gear (a lot more consistent then city driving)? Did you check the air filter, tire condition and pressure?

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helikid - 30 May 2004 22:29 GMT

If it were the oxygen sensor, your check engine light would come on, I
think.

http://auto.howstuffworks.com/framed.htm?parent=question257.htm&url=http://www.f
orparts.com/o-21.htm

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