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-   -   Bad gasmileage (http://www.fordrangerforum.com/general-tech/26185-bad-gasmileage.html)

shadyroids 02-09-2011 11:29 AM

Bad gasmileage
 
ok guys i have a ranger with the 3.0 in it. i usually get around 15mpg in the winter, and 18-19 in the summer. well right now i have been getting ridiculously low gas mileage. im gettin like 11-12mpg , my cat is clean, and my tire pressure is at 38 which is what i always run my ac isnt even plugged in because i hate the drain on the engine when its running. so do you guys have any suggestions to help me out

Clinton 02-09-2011 11:37 AM

Re: Bad gasmileage
 
Have you tuned it up? clean IAC etc?

shadyroids 02-09-2011 11:42 AM

Re: Bad gasmileage
 
have not tuned it kinda new to fixing things like i know how to put in lifts and external mods but i dont mess with the engine new air filter oil change didnt help so please explain stuff

shadyroids 02-09-2011 12:37 PM

Re: Bad gasmileage
 
it doesnt idle roughly at all so i dont think its iac

FireRanger 02-09-2011 03:57 PM

Re: Bad gasmileage
 
What year is this truck and how many miles? IAC shouldn't be doing much of anything when not at idle. Start with the basics (and cheap) and then get more complicated.

- Replace or clean air filter (done)
- Clean MAF (procedure in the How-To section) [free!]
- Clean the throttle body (procedure in the How-To section) [free!]
- Clean the IAC while you're at it (Why not, its there) [free!]
- Replace fuel filter [cheap]
- Make sure fan clutch isn't seized (can you spin it by hand with the engine cold and off)
- Replace spark plugs with Motorcraft of Autolite brand only!!!

Seafoam treatments may or may not help. If you choose to do that, do it before changing the spark plugs and you will need to do an oil change within 100 miles. Search for seafoam on here for lots of info:
- 1/3 can through the brake booster
- 1/3 can in the gas tank
- 1/3 can in the oil

TurdFX4 02-09-2011 04:02 PM

Re: Bad gasmileage
 
Don't feel bad, I'm getting 12mpg (4.0, 33's, 4.10's)

shadyroids 02-09-2011 09:41 PM

Re: Bad gasmileage
 
98 and 126k automatic

Rango88 02-09-2011 09:47 PM

Re: Bad gasmileage
 
Quote:

Originally Posted by shadyroids (Post 320820)
ok guys i have a ranger with the 3.0 in it. i usually get around 15mpg in the winter, and 18-19 in the summer. well right now i have been getting ridiculously low gas mileage. im gettin like 11-12mpg , my cat is clean, and my tire pressure is at 38 which is what i always run my ac isnt even plugged in because i hate the drain on the engine when its running. so do you guys have any suggestions to help me out

is there the tire pressure supposed to be set at the high thirties? Just wondering since all of my passenger cars I set them at 32, is it different for trucks?

bassplyer92517 02-09-2011 11:26 PM

Re: Bad gasmileage
 
Quote:

Originally Posted by Crowd88 (Post 321513)
is there the tire pressure supposed to be set at the high thirties? Just wondering since all of my passenger cars I set them at 32, is it different for trucks?

It depends on the tires. The tires on my truck say 32, but the tires I had before these ones said 35.

shadyroids 02-10-2011 12:43 AM

Re: Bad gasmileage
 
yeah mine says 35 but i like them a little firmer but thats just me

bLinker 02-10-2011 08:16 PM

Re: Bad gasmileage
 
I run 40 psi front and rear, i found that is the best for bumps/gas mileage/wear on your tires.

38 Summer
40 Winter

Rango88 02-10-2011 08:18 PM

Re: Bad gasmileage
 
I thought it would be better to have less pressure in the winter since it improves traction...

shadyroids 02-13-2011 06:54 PM

Re: Bad gasmileage
 
alternator blew up on friday so i think that might have had something to do with it too if it was going and locking up

FireRanger 02-13-2011 07:03 PM

Re: Bad gasmileage
 
Nah you'd know it. The belt would squeal and break. I think that might be a coincidence.

shadyroids 02-13-2011 08:36 PM

Re: Bad gasmileage
 
hahaha when it went there was squealing growling rattling it was BAD!!!!!!!!!!!!!!!


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