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Joe
Dodge Dakota
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10/17/2003
03:41:06
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 Subject: Using way to much gas
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Message:
I have a 99 dakota 3.9l cc and its only geting about 180 miles to the tank.And thats never geting on the gas at all.I plain on doing a oil change (about 6k miles on last) spark plugs (copper autolites) cap and rotor and 180 T-stat.What eles could i try to get better gas mileage?Or could there be something wrong with the fuel injecters?I really need some help here gas prices are up to 1.60 for reg. and 180 to the tank just isnt working.Is there any brand i should get with the T-stat,cap and rotor?Any help on this would be very great.Thanks
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GB2000
Dodge Dakota
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10/17/2003
03:45:01
|  RE: Using way to much gas
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I believe O2 sensors can cause your gas mileage to go to 5h1t. You might wanna see if one of them is bad.
Josh
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Joe
Dodge Dakota
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10/17/2003
03:47:40
| RE: Using way to much gas
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How do i check the codes to see whats wrong with it?
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scott
Dodge Dakota
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10/17/2003
04:59:53
| RE: Using way to much gas
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Message:
Joe
I have a 00 dakota 3.9 and I normally get 15 MPG in city. try a K&N drop in, a tonneau cover, and a 180 stat. I bought a Stant stat from Advance Auto..works fine. The o2 sensors should make a check engine light come on..but not always, you can take it to a tune up shop and hook it up to a real time scanner so that all voltages can be read and compared to "norms" and maybe identify any abnormalities. I personally have found adding a bottle of chevrons techron fuel system cleaner with every 4th tank helps...use good brand of gas too tho, not just the cheapest stuff you can find. if low mileage truck, consider using a full synthetic oil in the engine..every little bit of friction reduction helps. Good Luck on the Mileage search!
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daddio
Dodge Dakota
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10/17/2003
08:39:54
| RE: Using way to much gas
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Message:
it does sound like your O2sensor is bad. GB2000 is right on. if you turn the key from OFF to ON three times(leave ON )(do not start it) the codes will flash on your odmeter display. something like P1208 and so on, when it's done it will display Pdone.it's done. or go to your local Auto Zone and they will be happy to get the codes & tell you what's wrong.
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