hey all - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Reply
 
Thread Tools Display Modes
 
Old 12-27-2013, 08:23 PM   #1
Registered Member
 
Join Date: Dec 2013
Posts: 9
Country: United States
Location: Trenton maine
hey all

so i just joined up last week. iv got a 2002 gmc sierra 1500 4x4 5spd 4.3L. when i bought the truck i was getting 14mpg on a good week. after maitence and mods im now getting 20ish. its also window here and im now running with a fiberglass cap and LT studded snow tires. i suspect better millage when the weather warms (and better fuel quality).

unfortunately my daily commute contained mostly up hill one way. doesnt make for potentially amazing results haha.

im also located up in maine at sea level right on the cost.

mods to my truck include a proper tuneup, 3pc aluminum underdrive pulleys, upgrade to electronic injectors, k&n drop in filter with modded air box, flow master exhaust that exits infront of the rear tire, electric cooling fans, and a custom hptuners tune to accommodate a stoich of 14.2 for 10% ethanol.
__________________

__________________
2002 GMC Sierra 4.3 (W), 5spd, 4x4.
Mods: K&N drop-in, modded air box, modded throttle blade, X injectors, Flowmaster 50 series, BBK underdrive Pulleys (3pc), e-fans, personal HPT tune.

agraham52 is offline   Reply With Quote
Old 12-27-2013, 09:35 PM   #2
Site Team / Moderator
 
Jay2TheRescue's Avatar
 
Join Date: Sep 2008
Location: Northern Virginia
Posts: 4,657
Country: United States
Location: Northern Virginia
I'm thinking that unless your driving was all short trip city traffic, you should have been better than 14 MPG as a baseline with the 5 speed. My 98 K1500 gets 13-14 in short trip city traffic, and that's a 5.7L engine and an automatic.
__________________

__________________






Jay2TheRescue is offline   Reply With Quote
Old 12-27-2013, 09:39 PM   #3
Registered Member
 
Join Date: Dec 2013
Posts: 9
Country: United States
Location: Trenton maine
Even if u look on this website, these 4.3s sent that great, specially hills I have around here. Shortly after purchasing it I put new plugs/ wired, cap / rotor, o2 sensors, fuel filter, and the new injectors . That alone made a big difference.
__________________
2002 GMC Sierra 4.3 (W), 5spd, 4x4.
Mods: K&N drop-in, modded air box, modded throttle blade, X injectors, Flowmaster 50 series, BBK underdrive Pulleys (3pc), e-fans, personal HPT tune.

agraham52 is offline   Reply With Quote
Old 12-30-2013, 12:35 PM   #4
Site Team
 
Join Date: Dec 2006
Posts: 656
Country: United States
A bad tune will hurt things, even if it seems like you're running on all cylinders.

That's a substantial improvement. (Maybe that's the kick in the *** I need for a new set of plug wires...)

-Bob C.
__________________
Think you are saving gas? Prove it by starting a Gas Log, then conduct a proper experiment.
bobc455 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 04:18 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.