why only 11mpg in 4.7?
Professional
Joined: Oct 2005
Posts: 221
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From: Colorado Springs CO
RE: why only 11mpg in 4.7?
ORIGINAL: shrpshtr325
its the one pre cat that is bad if your getting bad mileage tho, engine side of the cat, just to clarify, controls the a/f ratio and how much gas you are burning
its the one pre cat that is bad if your getting bad mileage tho, engine side of the cat, just to clarify, controls the a/f ratio and how much gas you are burning
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Rookie
Joined: Jan 2008
Posts: 67
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RE: why only 11mpg in 4.7?
well the parts guy at napa auto told me there are 2 sensors to replace and im not sure if he meant one post and one pre or 2 pre cat so im going to wait and see if the new plugs and throttle body cleaning make any difference first. i know i have been running on a spare on the front left of the truck but i have a new tire i am putting on in the next couple of days
