poor gas mileage

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  #1  
Old 02-24-03, 06:18 PM
darab37
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poor gas mileage

I have a 1988 Chevy Corsica. It has only 91,000 miles on it and I get regular oil changes and etc. But it's getting extremely poor gas mileage. I want to take it in to a repair shop, but I don't want to be told I need a bunch of stuff done, that I don't. Give me some things that I can intelligently ask about at the repair shop, that would cause poor gas mileage. I know about an air filter, gas filter and oxygen sensor. What else? Would welcome any advice.
 
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  #2  
Old 02-24-03, 06:32 PM
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Plugs & plug wires, distributor cap and rotor.

Also Check Joe_F's post "The Basics" for more info.
 
  #3  
Old 02-24-03, 10:30 PM
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Follow the Tow Guys suggestions and

If your engine has a MAF Sensor(Mass Air Flow) the wires in it may be dirty and need to be cleaned or the MAF replaced. Here's a picture of what it should look like. http://www.partsamerica.com/product_.../74/747799.jpg

Recommended replacement for the Oxygen sensor is every 30K. Have the shop pull the error codes off the computer and give you an estimate for repair and you can always post back here with the results if they want to sell you a thousand parts.
 
  #4  
Old 02-25-03, 03:29 AM
Joe_F
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Agree with both.

TowGuy: Both the 2.0 vin 1 and the 2.8 vin W are distributorless in this vehicle---no cap and rotor.
 
  #5  
Old 02-25-03, 05:04 AM
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Just trying to keep you on your toes (tows?), Joe. That was a generic answer, I overlooked what the vehicle was.
 
  #6  
Old 02-25-03, 06:28 AM
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also check the very basic

I know this might sound stupid but check your tire pressures they can help on fuel mileage.
 
  #7  
Old 02-25-03, 08:35 AM
Joe_F
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Not at all. Tire pressure and alignment are key. That is a good point.
 
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