GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

2003 Blazer 4.3 fuel mileage help

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Old Oct 7, 2010 | 04:21 PM
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Default 2003 Blazer 4.3 fuel mileage help

I need to help this thing get better gas mileage, Do the throttle body spacers and cold air kits help at all? Any other suggestions?



Thanks
Shawn
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Old Oct 7, 2010 | 10:11 PM
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What kinda mileage are you getting are you a four door or two door, stock tires suspension etc. Bout 16.5-19 at the best is all you are going to get out of most of them especially if it has crappy 3:42 gears. If it has 3:42's there is part of your problem because it is constantly laboring.
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