horrible gas mileage

CHEVROLET CORSICA
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DANDAR
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I just purchased a 1993 Chevy Corsica, 140,000 miles
4cyclinder 2.7L engine. I drove it 40 miles and runs smooth Idols great, maybe a little slug in power, but not bad..it used 3/4 tank of gas!!! I know I should get better mileage than that!!!
I am new to this auto repair thing so don' t know much about what I am doing..I was thinking I would start with plugs and filters, then I saw the post about the timing chain, are these models known for that?? How much do they cost to fix and can I do it my self?
Apr 7, 2007 at 11:28 PM
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BOOTDOG
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i would suspect a fuel leak. going through 3/4 tank of gas in 40 miles is a bit extreme. follow the fuel lines from front to back and see if you can find a leak.
Apr 8, 2007 at 6:38 AM
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DANDAR
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Would I have to be going down the road to see the leak?? there is nothing under the car and I don't smell gas in or out of the car? I found out this morning that when the gage shows 1/8 tank YOU ARE EMPTY no gas light came on no slug of the engine. JUST STOPPED..
could this have anything to do with the other??
Like I said I have just purchased this car and haven't done any maintenance checks or anything!!
Apr 8, 2007 at 11:46 AM
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BOOTDOG
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just to be sure run the vehicle at idle and make sure you don't see any fuel leakage. if there is no leak then i would then suspect a leaking injector(s).
Apr 8, 2007 at 2:27 PM
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FLAMINKISS23
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i was having the same problem intill i checked my spark plugs, they were gapped more then what they were suppose too. That helped gas mileage alot too.
Aug 29, 2009 at 11:32 PM