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Justin LeChem
Dodge Dakota
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12/01/2002
18:37:11
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 Subject: problems with gas mileage
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I have a problem with my Dodge Dakota. It is a 1998 Dakota Sport with the V8 5.9 engine and the 19 gallon tank and roughly 49,000 miles. Recently I was getting around 300 miles for a full tanl of gas. And now all of a sudden it has dropped to 200 and it seems to be getting worse. When I went to fill up the tank low and behold it only took 13 gallons to fill up. This made me think either something is wrong with my gass gauge or I might have a fuel pump going out. I have not noticed any loss in power,etc. She's running fine except for this. Any thoughts on what the problem might be?
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POWER HUNGRY
Dodge Dakota
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12/01/2002
20:37:41
|  RE: problems with gas mileage
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It is probably the gas gauge. My doesn't ever show anymore than 3/4 full and show empty for any amount less than an actual 3/4 tank. I think that is probably the most frequent thing to brake. I have heard of atleast 10 other people with the same problem. I don't even worry about it since I found out that the gas light come on when I have 6-7 gals. left(22 gal tank). I think the problem actually is the float is broken(slightly filled with gas). I have put on 30,000 miles without a problem without fixing it. If you want to fix it, have the filter mounted on the fuel pump replaced while you have it out.
I think you mean 5.2l v8 since the 5.9 is only in the R/T and you said you have a sport. I am not sure of your gas tank since the 97 catalog says 15 or 22 gal tanks were available and the 2002's have 15s or 20 gals tanks. Anyway that is better gas mileage than I get with my 93'/5.2/auto/longbed/2wd/3.55 gears :(
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Justin LeChem
Dodge Dakota
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12/01/2002
20:45:16
|  RE: problems with gas mileage
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Sorry, I have the RT, I just always call it the sport. When I fill it up it never takes more than 19-20 gallons to fill.
How hard is this to replace? I have an extended warranty through my dealer. Will they fix it and if not what kind of costs am I looking at here?
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POWER HUNGRY
Dodge Dakota
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12/01/2002
21:04:57
|  RE: problems with gas mileage
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I would have a shop do it if its not under warranty.
If you did it. You would have to run the gas level low in the tank. Let the truck sit to let the fuel pressure to bleed down in the fuel line. Unhook the battery. Than you would have to unbolt the fuel tank from the truck with a jack supporting the weight. Disconnect the fuel lines and wiring from the pump assembly. Remove the assembly and replace broken/worn out parts. Reverse sets to put back together.
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C. Seaton
Dodge Dakota
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12/18/2002
17:11:13
| RE: problems with gas mileage
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We have never had good gas mileage in our 1996 Dodge Dakota V-8. Most full-sized trucks get better than we do!!! We did have a fuel sensing unit go out twice within warranty, but that had to do with the gas tank guage not properly representing how much fuel we had in the tank. We noticed the problem when we drove it off (brand new) the dealership lot and they told us that they had filled the tank. Two sensing units later, they finally fixed it, but our gas mileage is VERY SAD!!! Read more about our Dodge nightmare in my message under V-8s posted on 12-18-02. Good luck getting anything done under warranty--I've heard better excuses from a 5 year old!!!
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logan rohwer
Dodge Dakota
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1/11/2003
13:58:16
| RE: problems with gas mileage
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I have 93 with the 5.2. I have gotten as high as 19mpg. That was under ideal conditions tho. I added fiberglass topper and that brought it down some and now with the cold it as really dropped off. Has anyone had any luck with aftermarket products? I was wondering if the Tornado or Jacobs ignition systems would be worth the $. How about a Helix power?
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John Dodge
Dodge Dakota
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1/12/2003
07:45:34
| RE: suggestions for a great cold air inductions
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I am not totally loaded or nothin but I love my Dodge Dakota (97)so money is of little or no object. I am looking for the best of the best and I like to hear what you have to say, anyone with a suggestion of what to buy or not buy you would be helping me out alot. Thanks.
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slow2dak
Dodge Dakota
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1/12/2003
20:07:32
| RE: problems with gas mileage
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justin, is your dealer a dodge dealer, and if so what type of service contract do you have, added care of max care? if its max care it will most likely cover it all the time but sometimes added care wont cover it. if your gauge is reading wrong the fuel level sending units calibration is off. its not hard to change.
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Dakotaman4dr
Dodge Dakota
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1/13/2003
23:39:58
| RE: problems with gas mileage
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logan rohwer, I wouldn't touch the tornado. I asked the same question about it a few months ago and the responce I got was that like the TB spacer it's just an expencive paper weight.
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kota318
Dodge Dakota
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1/14/2003
02:54:10
| RE: problems with gas mileage
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you all say you have bad gas mileage, i average around 9.5-10.0 mile per gallon.. now thats sad,but i really dont mind.mods:fipk,dual flowmaster and pp3. i dream of having around 13 miles a gallon
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bw1199
Dodge Dakota
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1/14/2003
13:25:16
| RE: problems with gas mileage
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I have a 98' dako with the 5.2 V8. i get about 11 maybe 12 mpg. Thats with a topper and k&n intake.
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Jeri Rig
Dodge Dakota
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1/14/2003
17:57:44
|  RE: problems with gas mileage
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Isa gotz me bout 19mpg once butz I gotz to da bottom of da hill, I was empty 1/2 way down or I would not had gotten dat gooda milaje, I waz gonna gets me a AAA card to help me out but dis big country boy tolz me dat a KKK cardz would be cheaper, well I gotz one and I called.. these boys in white sheets that soundz like Hank Williams Jr showed up to watch me push!
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99Dak5.2L4x4
Dodge Dakota
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1/15/2003
09:36:41
| RE: problems with gas mileage
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I have auto transmission and I get about 10-11 in all city and 13-14 on the highways and I run 32x11.5x15 tires with 3:55 gears.
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yathink25
Dodge Dakota
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1/15/2003
19:58:37
| RE: problems with gas mileage
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got an 02 qc 4/4 auto with 355s and a 4.7 24 gal tank and only get about 225 city now that sucks
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R/TBlues
Dodge Dakota
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1/15/2003
21:23:09
| RE: problems with gas mileage
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Just got rid of a 3.9L RC Dak that got 14.5mpg. I traded it in on a 4.7L RC Dak and so far I've averaged 16mpg with a best of 18.3mpg. It has been my experience that Dodges get better gas mileage after about 20,000 miles (break in). I'm hoping to hit 20mpg on the highway. The best I ever got was in a 1994 QC 5.2L Dak @ 21mpg. That happened one time on I40 headed east from New Mexico. My friend's X-cab 350ci Silverado got 23mpg on the same stretch of highway.
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Matt C
Dodge Dakota
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7/15/2003
22:22:13
| RE: problems with gas mileage
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I have a 97 Dakota and get 12 on the road and 9 when I am pulling a trailer. Anything out there to improve the gas useage?
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01Motorsport
Dodge Dakota
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7/16/2003
09:12:40
| RE: problems with gas mileage
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Correct tire pressure/ fresh spark plugs/ K&N drop-in air filter/ clean throttle body/ STP concentrated injector cleaner/ free-flowing aftermarket cat-back exhaust.
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JBrad
Dodge Dakota
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8/03/2003
15:14:03
| RE: problems with gas mileage
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I have a 1995 Dakota extended cab with 318. My truck is lowered 2.5 & 3". TorqueMaster sparkplugs, MSD 6A ignition, Dynomax Race Magnum muffler, Amsoil 10w-30 and ATF and 75w-90 gear lube, truck lid, Carry most of the time about 800 pounds of tools, tires are 255 x 60 - 15 with 3:55 limited slip. Flowtech headers (which will be changed to another brand). One hundred Seventy five thousand miles with 90% on highway between 70-80. Average MPG is 17-18 in city with best of 22.4 coming home from Irwin Pa. on cruise at 60 MPH for 399.5 miles. Also have an Amsoil Lifetime airfilter. Forgot to mention, my fuel sending unit and filter were replaced at about 80,000 and computer at 78,000 with stock, not performance type.
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Ryan
Dodge Dakota
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8/24/2005
01:26:27
| RE: problems with gas mileage
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I have a 2000 RC 4.7.....and i used to get about 14 mpg....Then i put on a cold air intake and a throttle body spacer.....Now i get 17mpg
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oldone
Dodge Dakota
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3/30/2006
01:30:09
| RE: problems with gas mileage
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This answer is not a direct response to solving your problem but you will improve your highway mileage by at least 1 1/2 MPG by installing a Tonneau Cover.
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Dakota5.2
Dodge Dakota
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3/30/2006
16:39:35
| RE: problems with gas mileage
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Good driving habits will help your gas mileage go easy on the gas when accelerating. Ditto on the earlier post, tune up, tire pressure, tonneau cover (did spell that right).
Take it easy,
Dakota5.2
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