Ford Ranger Forum - Forums for Ford Ranger enthusiasts!

Go Back   Ford Ranger Forum - Forums for Ford Ranger enthusiasts! > >
Forgot Password? Join Us!

Welcome to Ford Ranger Forum

Reply
 
Thread Tools Search this Thread

  #31  
Old 09-30-2009, 07:54 AM
Clem Clem is offline
Ford Tough
 
Join Date: Aug 2009
Posts: 331
Default

About 2 weeks ago, I noticed my 02, 4.0 was getting diminished mpg. I cleaned the air filter, the MAF, and ran the codes. No codes. The mileage is back to what I expect, 17-19 city, 20-22 highway.

Ray
Reply With Quote
  #32  
Old 09-30-2009, 05:58 PM
geezmo2001 geezmo2001 is offline
My rangexplodeneer.
 
Join Date: Aug 2009
Posts: 247
Default

According to my scangauge, I got 15.4 mpg this morning. Gee, can't wait for winter and snow.
__________________
2001 Extended cab Edge, 4x4, 4.0, 4.10 gears, 3" PA body lift, Heartthrob dual exhaust, Roush Thunderbolt signal mirrors, 8000k hid head/foglights, Mountaineer leather buckets, Xplorer shorty console, Alpine 9856 receiver, 10" type r sub in ported box, air box mod, throttle cable mod, Rancho R5000 shox, Scangauge II, plus many other things...
Reply With Quote
  #33  
Old 09-30-2009, 06:18 PM
Clem Clem is offline
Ford Tough
 
Join Date: Aug 2009
Posts: 331
Default

Just read an article on another site, Mustang, a fellow there was getting increasingly poor fuel economy.
The first question that was asked,"Have you ran the codes? The "check engine light" may not come on for some of the codes".
Now I have never heard that before, so can't comment.
The second question asked, "When did you change your O2 sensor last? Just because the "check engine light" isn't on, doesn't mean the O2 sensor is working correctly".
I have changed O2 sensors and gotten better performance and an increase in mileage, but the vehicle didn't have a "check engine light", the change was due to observing a burnt wire.

Ray
Reply With Quote
  #34  
Old 09-30-2009, 07:15 PM
DieHard4rd DieHard4rd is offline
The Old Guy
 
Join Date: Jul 2009
Posts: 4,824
Default

My worst tank was 29.1 & my best so far is 36.5.

My current tank is going very well. At 245 miles & it's on the 1/2 tank mark. Should be 35+ MPG on this tank.

Can't wait to get my Scan Gauge! Hope to hit 40MPG soon
Reply With Quote
  #35  
Old 10-01-2009, 06:26 AM
Clem Clem is offline
Ford Tough
 
Join Date: Aug 2009
Posts: 331
Default

The only thing I have ever gotten mileage like that out of was a KIA rental I had for a couple weeks while my truck was being gone through. That pos got 31 mpg at 65-70 and 45-48 at 80-85, all freeway driving. Thought I might buy one for the mileage, then talked with my son who worked for a local KIA dealer and found out what kind of problems they had with them and decided, NO.
That is great mpg!

Ray
Reply With Quote
  #36  
Old 10-01-2009, 08:46 AM
Fx4wannabe01 Fx4wannabe01 is offline
Ford Ranger Driver
 
Join Date: Sep 2009
Posts: 4,058
Default

Why are 4cyl's posting in this 4.0L thread?




Guys.....the 4.0L SOHC has CRAPPY down low torque...it REALLY does. Sure, itdoesn't take much to get the truck moving, but then again ya'll all have automatics, so your view of how it's performing is hindered.

Hate to be one of the ones....but I regularly see 16-17mpg city and regularly pull 19-20mpg on the highway...all at 75mph at 2800 rpm in 5th. And look at my avatar....i'm not a small truck....8" of lift and 35's and being properly geared. It does have an intake and exhaust, but otherwise the engine is stock. I'm pulling the same numbers from my 2,000 mile engine that I pulled with my 110,000 mile engine(replaced recently).




OP, leave the overdrive on. 5th gear gets you better mileage at higher speeds. You need to tell us how you drive. You need to tell us how many miles and what kind of maintence has been done to the truck. Has the gas mileage drastically dimished recently or has it always been this crappy? Statistically, if you go over 65, you're mileage decreases like 10% every 10mph you go past 65. Some weird numbers like that, I have nothing to back it up, but that's what I've read and observed on my truck.

I suggest spending the $10 on new fuel filter for the hell of it and check your air filter. I usually change fuel filters every 30k or so and it always makes a difference in both power and economy. I also suggest just what ford suggests, use regualar 87 octane. Running higher grade fuel won't do anything but empty your wallet faster and possibly deliver worse mileage because you don't have the tuning to support 89 or 93 octane. I also suggest seeing if you really are throwing a Check Engine Light code, but your bulb may be burned out. Wouldn't be the first time that that has happened.
__________________
'01 XLT disguised as a '03 Fx4 Level II.

Last edited by Fx4wannabe01; 10-01-2009 at 08:50 AM.
Reply With Quote
  #37  
Old 10-12-2009, 06:17 PM
Boujiboy2000 Boujiboy2000 is offline
Learning to use the forums
 
Join Date: Oct 2009
Posts: 8
Default tires

the tires you use can also make a difference. We had replaced our tires once with ones from walmart that had a sidewall 2 iches taller than normal, never wrote down the numbers but we had to fill it up alot more especially if doing lots of in town driving.

also make sure the tires you have are set to factory recommend pressure to avoid exess wear and a tire with the pressure too low will eat more fuel.
Reply With Quote
  #38  
Old 10-14-2009, 06:42 AM
Jay FX4 Jay FX4 is offline
▲▼▲▼▲▼▲▼
 
Join Date: Jun 2009
Posts: 2,511
Default

Quote:
Originally Posted by Fx4wannabe01 View Post
Guys.....the 4.0L SOHC has CRAPPY down low torque...it REALLY does.
Huh? 200+ lb/ft by 3000 rpm - I think that's pretty good for a relatively small, non-diesel V6....
__________________
Quote:
Originally Posted by Ranger Dave (B25) View Post
Our foreign policy is laughable at best. As is the recipient of this years Cracker-Jacks prize for 'peace.'
Quote:
Originally Posted by Toms984x4 View Post
NOS for teh horse powaz!!!
ɹǝʌo ǝɯ dılɟ
Reply With Quote
  #39  
Old 10-14-2009, 09:47 AM
Fx4wannabe01 Fx4wannabe01 is offline
Ford Ranger Driver
 
Join Date: Sep 2009
Posts: 4,058
Default

Down low meaning 1500-2250rpm....3000 is when it starts getting 'hot' if you will.






I don't think the OP cares about his horrible, I mean horrible gas mileage.
__________________
'01 XLT disguised as a '03 Fx4 Level II.
Reply With Quote
  #40  
Old 10-14-2009, 10:21 AM
FireRanger FireRanger is offline
Blinded by the light
 
Join Date: Sep 2009
Posts: 7,674
Send a message via AIM to FireRanger
Default

Cold weather is going to mean more fuel consumption no matter what gas you put in it. Cold air is more dense than warm air. Essentially, your engine is sucking more air when it is cold than it does when it is hot. To maintain the proper fuel-air mixture, the fuel injection is going to dump more fuel to go along with the more air. This is going to reduce your gas mileage.

This is why airplane performance must include compensation for temperature. Cold days have more air to provide more engine power and literally more air for the propeller and wings to use for thrust and lift. On a hot day, there is literally less air for the engine, props, and wings to bite into and performance is greatly reduced. There are really hot August days that will inhibit certain planes from being able to take off because there just isn't enough runway to get off the ground with the low air density. Same reason Denver has runways that are over 3 miles long. High altitude means less dense air. It takes all 3 miles of runway to safely land or takeoff.
__________________
(Formerly)
FireRanger
2003 Edge 4.0 4wd

How to: Aux light wiring, relays, & fuses
Info: 300+ intake threads here on FRF
Info: HID Projectors
How To: NO HEAT Troubleshooting Guide
Reply With Quote
  #41  
Old 01-11-2010, 05:44 PM
Herkypilot Herkypilot is offline
Learning to use the forums
 
Join Date: Jan 2010
Posts: 5
Default

I'd check for dragging rear brakes also. Mine are doing this now and I am seriously thinking of making a trip to the junkyard to look for a '94-'04 Mustang to get the disk brake components for a conversion.

To check for dragging brakes, after you drive for a while, maybe 5 to 10 miles carefully check the temperature of the rear drums after you park. Your brake drum shouldn't be super hot from normal braking, but my right rear brake sure was. I think I may first attempt a rebuild kit first and clean the slave real good and see how that does, but I'll keep an eye out for the conversion parts.

HP
Reply With Quote
  #42  
Old 01-11-2010, 06:26 PM
L-Mo L-Mo is offline
Ford Ranger Owner
 
Join Date: Dec 2009
Posts: 61
Default

Mine sucks as well.Last check was 13 mpg. Have new air & fuel filters,& new sparkplugs. I blame the cold weather. Durring the summer I'm getting 20-21 mpg easily. 2001 4.0 xlt 4x4
Reply With Quote
  #43  
Old 01-11-2010, 07:51 PM
blueovelboy blueovelboy is offline
GO SHARKS
 
Join Date: Aug 2009
Posts: 1,523
Default

winter dose kill milage
__________________
Jay's
09 XL reg cab
L4 2.3 , 40 series flowmaster , tinted windows 5% back 35% sides ,muffler removed from air box mod ,and ac on off switch mod , blinker mod, avs window vent shades
coming soon! k&n drop in/fiberglass bed cover/bed sprayed liner
Reply With Quote
  #44  
Old 01-11-2010, 10:39 PM
Jay FX4 Jay FX4 is offline
▲▼▲▼▲▼▲▼
 
Join Date: Jun 2009
Posts: 2,511
Default

Quote:
Originally Posted by L-Mo View Post
Mine sucks as well.Last check was 13 mpg. Have new air & fuel filters,& new sparkplugs. I blame the cold weather. Durring the summer I'm getting 20-21 mpg easily. 2001 4.0 xlt 4x4
+1

Those are exactly the summer/winter numbers I'm getting.
__________________
Quote:
Originally Posted by Ranger Dave (B25) View Post
Our foreign policy is laughable at best. As is the recipient of this years Cracker-Jacks prize for 'peace.'
Quote:
Originally Posted by Toms984x4 View Post
NOS for teh horse powaz!!!
ɹǝʌo ǝɯ dılɟ
Reply With Quote
  #45  
Old 01-12-2010, 10:41 AM
04SportV6 04SportV6 is offline
Ford Truck Driver
 
Join Date: May 2009
Posts: 95
Send a message via AIM to 04SportV6
Default

So the brakes dragging; is that a common ranger problem? I usually average 17 driving about 50/50 highway and city. When I went on my trip this past summer I got about 20. Ever since then the mileage has slowly dropped. Every once in a while the truck does feel like its dragging a little. Could this be my problem?
__________________
2004 XLT "Sport"
4.0 L V6 2wd
Tenon 6500k HID's, LED 3rd Brake,Clear Corners, STL's Blinker Mod, Flowmaster Super 44 Muffler, Kelly Springfield Safari Trex Tires, Sony Xplod Stereo System and 2 - 10" MTX Truck Subs

More Mods to come.
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Bad gas mileage from my '04 3L tulsatime 3.0 Vulcan Tech 18 08-18-2014 09:04 PM
2003 ford ranger fx4 gas mileage? x Adhesive x General Ford Ranger Discussion 17 09-13-2011 10:24 PM
Gas mileage for 4.0 V6 4X2 extended cab dkr General Ford Ranger Discussion 29 06-18-2009 09:58 AM