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tin-knocker
Dodge Dakota
JOIN HERE
2/15/2004
23:57:00
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 Subject: 8.3 mpg 97 3.9 4wd help
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Message:
i wanted to see how i was doing on gas milage i got 150 mils on 18 gallons my truck is a 97 cc 3.9 4wd can anyone help me ??
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GB2000
GenIII
2/16/2004
00:27:57
|  RE: 8.3 mpg 97 3.9 4wd help
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Could be bad O2 sensor(s)...
Josh
Red 98 RC V6 2wd Single in/dual out exhaust (soon to be switched to a flowmaster 40 single in/dual out), s-bolt "mod", Edelbrock 10" round air cleaner w/ K&N air filter, removed rubber flap...and more to come
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daffydak
GenIII
2/16/2004
00:50:08
| RE: 8.3 mpg 97 3.9 4wd help
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Message:
yeah i agree with josh, could be o2 sensor(s) maybe cloged air filter too. i dont know the mpg of my dak, i just always fill er up when she gets to the 1/4 tank mark. my milage is likely pretty bad because i drive it like i stole it lol
hope i helped
Dan
mopar=mopower
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Will
Dodge Dakota
JOIN HERE
2/16/2004
13:01:45
|  RE: 8.3 mpg 97 3.9 4wd help
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Message:
Do like Josh and Dan said, have that o2 checked. If its not the o2 it chould be a number of things like: dirty air filter, bad exhuast, Ect. But with a 4wd I whouldn't expect over 12 in the city and maybe 18 on the highway.
P.s. If you have any questions about these parts feel free to ask.
Will
Page's Auto Shop
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Wadak
Dodge Dakota
JOIN HERE
2/16/2004
23:31:58
| RE: 8.3 mpg 97 3.9 4wd help
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Tin-knocker, How many miles do you have on your truck? The first thing I would check is the O2 sensor as stated above. On the 97, there is a before and after O2 sensor (BEFORE AND AFTER THE CAT.), which one is bad? Take your truck to the shop or auto-parts store they may scan it for free, that might be a good place to start. How long has it been since your truck has had a full tune up? New rotor, cap, plug wires, plugs and maybe a new coil. All of these can contribute to your problem. At this time of year, if you have snow on the ground you could remove your air filter out of the filter box on the passenger side fender and take it for a drive. Then take it for a test drive if performance improves, replaced the air filter.
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Josh
Dodge Dakota
JOIN HERE
2/23/2004
21:01:00
| RE: 8.3 mpg 97 3.9 4wd help
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Message:
#1 do you leave in a cold area where you are letting your truck warm up for a while? Otherwise think about doing a tune-up. Plugs, wires, cap, rotor, pvc valve, fuel filter, run some injector cleaner through it, and possibly o2 sensor. But on your vehicle when the o2 sensor goes you should get a check engine light and you should definately notice a change in performance.
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