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bigm_l_b
Dodge Dakota
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12/21/2004
21:34:40
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 Subject: Crappy gas mileage...Help Please
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Just wondering if anybody knows why i am getting extrememly crappy gas mileage. I have a 1990 dak with v6 and I am getting only about 250-300 kilometers per tank ( i dont know what that is in MPG, i am in canada. I just recently replaced the O2 sensor, but it is still doing it! any sugesstions????
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Bob Lincoln
Dodge Dakota
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12/21/2004
22:09:48
| RE: Crappy gas mileage...Help Please
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Check fault codes http://allpar.com/fix/80s-codes.html, check for vacuum leaks.
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ace herrin
Dodge Dakota
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12/22/2004
16:00:47
| RE: Crappy gas mileage...Help Please
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Like Bob said, check the codes to see if there is any problem code reading.I converted your gas mileage to be 16-19.2 mpg, which really isnt that bad for any year dakota from what i have been seeing.I'm not sure of your tank size, but was going on it being a 25 gallon tank.You might also check vacuum leaks, as Bob also said,PCV valve,fouled plugs,air cleaner filter,tire pressure,all the usual things that have slight affects on you mileage. Also, being in Canada, with very low temperatures, always let your engine warm to full operating temp. before driving it. I don't know if you live in a higher altitude or not, but there may be a problem with thinner air and the engine compensating for it with a richer fuel mixture. You could also invest 50 or 60 bucks in one of those Tornadoes to insert into your air passage. I have heard great things about them improving mileage by 15-25 percent.
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daddio
Dodge Dakota
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12/22/2004
16:37:43
| RE: Crappy gas mileage...Help Please
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ace, that tank is porbably max. 20 gall.
300 kilo's is like 186 miles on 20 gallons is like 9.3 mpg. 250 km's = 155 miles.
have you tuned up recently? oil change? check tire pressure. could have a faulty "new" O2 sensor. lots of possibilities. start small and work from there.
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bigm_l_b
Dodge Dakota
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12/22/2004
20:08:03
| RE: Crappy gas mileage...Help Please
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ok, thanks, what is this tornado thing your talking about. Also I believe that I have a really big tank on there, it takes about $50-60 canadian to fill it from dead empty
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Bob Lincoln
Dodge Dakota
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12/22/2004
20:33:09
| RE: Crappy gas mileage...Help Please
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The Dakota tanks are 15 or 22 gallons, depending on which your vehicle came with. So 250-300 km equals roughly 150-180 miles, which is between 7 and 12 mpg. This is horrendous. My 92 Dak with V-6, 4-speed auto, club cab and 4WD is rated 16 mpg city, 20 highway, and I get 17-18 city, 20 highway. So a tuneup, if not done recently, is the first step, along with checking codes.
That tornado thing is a piece of crap, don't waste your money. It is merely an obstruction in the airstream. Swirling the air before it hits the fuel is a useless exercise. With your bad mileage, you have a serious problem to fix, that you should direct your money to, instead of making hucksters rich.
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Bill Benson
Dodge Dakota
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12/22/2004
21:51:39
| RE: Crappy gas mileage...Help Please
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The gas tank capacity should be stamped on the side of the tank.
My 1991 Dak, with standard tranny and regular size bed gets about 19 to 20 MPG city and some highway driving, that is with an empty bed except for the tool box.
My Dak has a 22 gal. tank.
My neighbor's 1987 Dak also has a 22 gal. tank.
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Trest
Dodge Dakota
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12/23/2004
21:07:19
| RE: Crappy gas mileage...Help Please
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Pfft my reg cab/bed 99 with intake exhaust new plugs brass rotor/cap new wires and tonaeu only pulls 17-18 in city no matter how i drive
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v 6 dakota
Dodge Dakota
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1/02/2005
17:45:38
| RE: Crappy gas mileage...Help Please
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i have a 2004 dakota sxt and it gets about 12mpg so i took it back to the dealership and was like whats up they said it was fine but my dad has got a 4.3thats geting about 20mpg and my 3.7 is geting that something is wrong
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Woody
Dodge Dakota
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1/02/2005
18:35:19
| RE: Crappy gas mileage...Help Please
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V6 Dakota....its like probably you keep your foot in it like all of the time,sounds like thats whats up
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Gears
Dodge Dakota
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1/02/2005
19:01:39
| RE: Crappy gas mileage...Help Please
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Don't waste your money on the tornado, give me the money and you'll get the same results.
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big bird
Dodge Dakota
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1/09/2005
10:06:24
| RE: Crappy gas mileage...Help Please
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Gears , ur right !! But if anyone wants 2 buy a tornado I'll give you a deal on some snake oil that'll turn ur Dak into a top fuel dragster!!!!
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Dan M
Dodge Dakota
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1/09/2005
17:42:00
| RE: Crappy gas mileage...Help Please
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take it to a shop that offers engine flush service. It's helped my gas milage considerably.
Last fill up I got 19.4 mpg, that's combined city and highway. I'm talking driving 17 miles on I-75 each way of Atlanta traffic. Total daily driving to/from work is about 46 miles. Prior to this and tune up and new o2 i was getting 14-15 city - driving 8 miles each way speeds between 35-45 with no bumber-to-bumper traffic like I have now.
- Dan M
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quinch
Dodge Dakota
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1/10/2005
02:00:47
| RE: Crappy gas mileage...Help Please
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My '03 gets 15 MPG no matter how I drive, ever since I bought it new.
That's some crappy mileage for a V-6 on the highway.
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BrandonG
GenIII
1/10/2005
13:53:41
| RE: Crappy gas mileage...Help Please
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i don't know how much my mpg is but i am getting about 225-250 miles on a full tank and i have about a 17-20 gallon tank not sure exactly what it is.
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Ron
Dodge Dakota
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1/10/2005
21:17:29
|  RE: Crappy gas mileage...Help Please
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If there is a trouble code won't a light come on in the dash?
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big bird
Dodge Dakota
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1/11/2005
09:42:23
| RE: Crappy gas mileage...Help Please
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We're all in the same boat !!! I own a '97 Dak Sport V-6 5 speed . being a professional mechanic , I flushed the injectors , cleaned the throttle body and intake , and performed a thorough Tune Up ,,, the result , daily highway drive to work, 25 miles one way ,16 mpg , 17 if I drive it like Grandma !!!! But it is reliable !
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Gears
Dodge Dakota
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1/11/2005
14:01:08
| RE: Crappy gas mileage...Help Please
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'00 3.9 auto 15.5-16.5 mpg around town /21-22mpg on long interstate trips.Have done a few mods, still the same mpg. I'm alright w/ that it's a truck, but my '98 neon 23mpg that's weak.
2000 ext cab sport
cold air intake, 3923's,good cap and rotor,MSD super conductor wires, V8 Tb,SS Gibson 3inch single exhaust, 3.55 LSD rear,Optima yellow top battery
Working on moddin an intake manifold, Dreamin' about HS 1.7:1 roller rockers & FiveO's FMS injectors.
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93dak4x4
Dodge Dakota
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1/11/2005
21:23:19
|  RE: Crappy gas mileage...Help Please
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I have a 93 dakota club cab 4x4 with the 3.9 and I can pull 18 if I drive like a grandmother in a snow storm. the odd thing is that sometimes my mileage fluctuates...ON THE SAME TRIP. I recently drove a 500 mile trip and for the first half tank averaged a hair over 19. rest of the trip I pulled about 17.
V8 TB
3923's
stock 3" with flowmaster
ALL new sensors
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Jay
Dodge Dakota
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1/14/2005
14:02:31
|  RE: Crappy gas mileage...Help Please
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Message:
Has anyone tried chipping there Dakota?
I have 98 3.9L 4X4 sport consistantly get 18-20 MPG.
I was going to try chipping it but it sounds like we all came in on different ships but are in the same boat now
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big bird
Dodge Dakota
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1/14/2005
15:31:48
| RE: Crappy gas mileage...Help Please
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Message:
mopar performance controller on mine ,,, no better milage , but it did make it scat better !!!!
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