24 Valve Engine and Drivetrain Discuss the 24 Valve engine and drivetrain here. No non-drivetrain discussions please. NO HIGH PERFORMANCE DISCUSSION!

Low MPG

Thread Tools
 
Search this Thread
 
Old Oct 3, 2003 | 11:28 AM
  #1  
ammo5797's Avatar
Thread Starter
Registered User
 
Joined: Oct 2003
Posts: 80
Likes: 0
From: North Dakota
Low MPG

I've got 32K on my 01 HO 4x4 w/ a 6spd and have started losing mpg. Right now I'm averaging 13.5, driving mostly flat hwy @ 75 mph. Truck is stock (for the moment) except for 285 tires - Changed fluids & filters regular, what's going on here? I was aver. 17-18 'bout 10k ago.
Reply
Old Oct 3, 2003 | 12:21 PM
  #2  
MARKY MARK's Avatar
Registered User
 
Joined: Nov 2002
Posts: 490
Likes: 0
Re:Low MPG

I lost MPG and somebody here told me to check fuel pressure. I installed guages and found 7 psi at idle and 2 psi at wot. Was getting 16 MPG highway and 12 MPG city. Now with new lift pump I'm getting 19.5 Highway and 14 city. Might be something to look at.
Reply
Old Oct 3, 2003 | 12:34 PM
  #3  
slighfoxs3500's Avatar
Registered User
 
Joined: Aug 2003
Posts: 176
Likes: 0
From: Little Creek Amphib base Virginia
Re:Low MPG

Sensors, MAP would be my first check and ditto on checking fuel psi.
Reply
Old Oct 3, 2003 | 02:28 PM
  #4  
MLR1's Avatar
Registered User
 
Joined: Aug 2003
Posts: 277
Likes: 0
From: Shelley, Idaho
Re:Low MPG

Pull the IAT sensor and clean it also.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bngcustoms
3rd Gen Engine and Drivetrain -> 2003-2007
45
Jun 20, 2009 06:55 PM
Keyser
12 Valve Engine and Drivetrain
7
Apr 20, 2008 06:24 PM
richard
3rd Gen Engine and Drivetrain -> 2003-2007
26
Sep 6, 2007 01:35 PM
bigfish5
General Diesel Discussion
2
Sep 19, 2006 12:56 AM
eedwin
3rd Gen Engine and Drivetrain -> 2003-2007
33
Jul 15, 2005 03:24 PM




All times are GMT -5. The time now is 05:09 AM.