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#1
03-10-2007, 08:27 PM
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What could be the problem?
I have a Chevrolet K1500 truck. It has the original 350 engine in it with a 150000 miles of it. I get about 11-12 miles per gallon with it right now and two years ago when I bought it, it got around 17 miles per gallon. Wondering if anyone would know why I am getting such bad gas mileage with it right now.
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#2
03-11-2007, 07:34 AM
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Re: What could be the problem?
What year?
Extended idling, change in driving habits? When was the last time you had a tune,,,what type of plugs are you running?
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#3
03-11-2007, 02:55 PM
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Re: What could be the problem?
Start with the stuff gmmerlin said and if that doesn't work then you may have a cat plugging up, have the back pressure tested.
__________________
NO 4 N JUNK  1994 GMC K1500 XC 5.7L 2008 Chevy Impala LTZ
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