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Excessive fuel consumption - Silverado 1500 Chevrolet Cars & Trucks

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  • Chevrolet Master
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FIRST LOOK FOR LEAK
IF YOU HAVE A 6.0L THEY ARE VERY BAD ON FUEL ECONOMIC
LOOK FOR A GOOD TUNE UP .AIRFILTER,FUEL FILTER,SPARK PLUGS,CLEAN TROTTLE BODY
AND IF YOU NEVER CHANGE THE O2 SENSOR CHANGE IT

Posted on Oct 16, 2013

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6ya6ya
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Posted on Jan 02, 2017

  • 196 Answers

SOURCE: GM Daewoo Kalos - Excessive fuel consumption 15L/100km

o2 sensor bad or ,dirty or clogged injectors hope this helps

Posted on May 09, 2010

jim9813
  • 124 Answers

SOURCE: volvo s40 1.8 gdi excessive fuel consumption

You're going to have to figure out what's causing the misfire. The car is almost 10 years old, so change the plugs to start with. If you still have a misfire, go to auto zone and have them pull the codes to find out which cylinder is the issue. Then figure out fuel or spark? Coil or injector? Was there a lean code? Check for a vacuum leak. Change the fuel filter and air filter for maintanence. The cruise control may be another issue.

Posted on Aug 06, 2009

  • 73 Answers

SOURCE: Lexus LS400 loss of power and excessive fuel

check the computer known for going bad. auto computer exchange in Davie fL can fix it

Posted on Oct 02, 2009

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