Air filter
#1
Air filter
I've got my dad's 2001 . I put a new fram air filter in it because the filter moniter thingy showed 35% useage and my mpg's dropped , but the filter looked new. So i put a new in it and resetting it after a couple miles it shows 35% again and mpg's are still low . Is there a problem or am I buying <bad> filters ?
#2
I'm not a big fan of Fram filters, but I doubt the quality of the filter is the issue here. When you say the mileage is low, what exactly are you seeing?
I ditched the factory airbox on my 2000 the 2nd week I had the truck, so I'm not the best one to comment on what's normal for the filter minder.
I ditched the factory airbox on my 2000 the 2nd week I had the truck, so I'm not the best one to comment on what's normal for the filter minder.
#4
Registered User
Join Date: Jan 2005
Location: Yuba city Kalifornia
Posts: 3,899
Likes: 0
Received 3 Likes
on
2 Posts
first clean the intake air temp sensor then the map sensor
if that dont work try and buy a new IATS ,it could be your injector need to be replaced or cleaned. also a failing VP44 can cause low mpg
if that dont work try and buy a new IATS ,it could be your injector need to be replaced or cleaned. also a failing VP44 can cause low mpg
#5
Registered User
Look for a boost leak first. Thats the obvious answer. Have your EGT's gone up since the boost level has dropped? How many miles on the truck?
#6
Registered User
I have found the filter minders to be fairly consistent, but a stronger engine, or one with mods will suck enough air that even a brand new paper filter will cause enough restriction to pull down the minder. Above a certain power level, besides the filter, the airbox and its inlet through the fender will be restrictive too.
Trending Topics
#9
Registered User
#11
Registered User
If you are saying the mileage dropped after you installed a new air filter over a 35% blocked one something else has changed, maybe winter blend fuel etc.
I put a BHAF on mine in 07 and drilled a hole for the filter minder in the top, it has never budged so far and the filter is still relatively clean by sight.
I'd bet youre into winter fuel.
I put a BHAF on mine in 07 and drilled a hole for the filter minder in the top, it has never budged so far and the filter is still relatively clean by sight.
I'd bet youre into winter fuel.
Thread
Thread Starter
Forum
Replies
Last Post
EverydayDiesel
3rd Gen High Performance and Accessories (6.7L Only)
22
06-03-2010 12:10 AM
Wildhog
Performance and Accessories 2nd gen only
13
08-04-2008 08:07 PM
nfsommer
3rd Gen High Performance and Accessories (5.9L Only)
3
04-16-2007 09:21 PM
royta
12 Valve Engine and Drivetrain
2
09-17-2005 10:25 PM