Bad Gas Mileage!


Old 11-15-05, 08:32 PM
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Bad Gas Mileage!

I recently bought a 1996 Chevrolet 1500 4x4 pickup with a Vortec 5.7. I am getting about 10-10.5 mpg while being extremely light on the pedal. Isnt it uncommon for those engines to get that bad of gas mileage? What would be the first things I should check for? I have already replaced the fuel filter and air filter. It also has a somewhat rough idle. Truck has 18 inch glasspacks....if that makes a difference. I would appreciate any comments or suggestions anyone might have. Thank you!

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Old 11-16-05, 01:51 PM
Join Date: Jan 2002
Location: Chicago
Posts: 1,915
My Tahoe gets about 10 mph in the city.. I would expect the 1500 to get about the same. The glass packs are probably not helping either.

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