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Gas Mileage and hard idle

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Old Jan 19, 2007 | 07:50 PM
  #1  
precisi0n84's Avatar
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From: Clermont, Florida
Gas Mileage and hard idle

Hey all,
Not to technical when it comes to car problems, so I thought I'd ask for some advice.

Recently my 8 has been getting horrible gas mileage (used to be 18mpg and not I'm hitting somewhere around 14.8mpg) along side the issue of a hard idle. The hard idle only seems to happen when my car is hot.

Like I said, I'm not too technical, but might this be a result of a broken cat.? It seems like my car is a lot louder than it usually has been in the past.

Any theories welcome...
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Old Jan 20, 2007 | 01:52 AM
  #2  
swoope's Avatar
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From: orlando, fl
Originally Posted by precisi0n84
Hey all,
Not to technical when it comes to car problems, so I thought I'd ask for some advice.

Recently my 8 has been getting horrible gas mileage (used to be 18mpg and not I'm hitting somewhere around 14.8mpg) along side the issue of a hard idle. The hard idle only seems to happen when my car is hot.

Like I said, I'm not too technical, but might this be a result of a broken cat.? It seems like my car is a lot louder than it usually has been in the past.

Any theories welcome...
clogged cat is most likley.

to the dealer you go..

beers
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Old Jan 20, 2007 | 08:26 AM
  #3  
DaveCM203's Avatar
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Joined: Apr 2006
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From: Central North Carolina
Also check air filter.
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