Jump to content

2014 sierra 1500 5.3 help.

Mavs_42

By Mavs_42
in Troubleshooting & Recalls

Recommended Posts

Mavs_42 Enthusiast

Mavs_42

Posted
Posted

Just bought a lifted gmc. Has a pro comp 6 inch lift with toyo 33s on it. Im getting about 10 in city and 13 on highway. I been doong some research on how to get my mpg up. Looks like ots comimg down to and cold air intake,headers maybe, exhaust and a programmer for tune. Am i on the right track?

dasimmon Enthusiast

dasimmon

Posted
Posted

ur on the right track, don't expect any crazy increase. Just part of havin a lifted truck w heavy tires. Been there

 

 

Sent from my iPhone using Tapatalk

  • 2 weeks later...
jono20 Enthusiast

jono20

Posted
Posted

I had to drive about 450km (300mi) when I swapped out my '14 for my '17. Route is pretty flat, and I sat on the speed limit with cruise control on in both directions. My '14 had a leveling kit, and the new one doesn't. That being the only difference, mileage on the new truck was almost 12% better.

 

Went from 11.9 l/100km on the way down to 10.5 l/100km on the way back (19.77 to 22.4 mpg). If a leveling kit makes that much of a difference, can only imagine what a full lift with tires would do...

dorkweed Enthusiast

dorkweed

Posted
Posted

i used to get 10l/100k with stock tires now with inch and a half lift and 275/70/17 ko2 tires its 13 to 14l per 100k

 

?????

Spurshot Senior Enthusiast

Spurshot

Posted
Posted

Just to give you another data point, I have a 2014 CC 6 1/2 ft bed, 33 x 12.50 load range E AT/mud hybrid Cooper STMaxx tires, 2" leveled front, topper, a few hundred lbs of stuff in it always. I get about 13 mpg in town, and 15 hwy. I don't drive like granny, but I don't drive with my foot constantly on the floor either. Some of each.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • Grumpy Bear
      The Peckish Synapse

      By Grumpy Bear · Posted

      Breaking News!    I'm going to tell you that I'm going to tell you.  Then I'm going to tell you what I'm going to tell you.  Then I'm going to tell you.  Then I'm going to tell you what I told  you.  Then I'm going to tell you what I'm about to tell you on the other side of the break.  Then we're going to break. Then I'm not going to tell you what I told you I was going to tell you.  But I'll tell you something else that is Breaking News just coming to the desk that everyone reported on yesterday.  Then I'll tease a human interest telling I'll get to on the other side of a larger break. Then I'll tell you one item in 20 seconds and go back to an even longer break. Longest break of the night.  Then I'll tell you a fluff piece that takes 10 seconds and sign off into a three minute break while you wait for the next 30 minutes of rinse and repeat on the local news.    In al you'll get about 12 minutes of something, 5 minutes of which is worth hearing in a 30 minute show and 18 minutes of advertising at a sound level twice as loud as the news.    Of course you can switch to cable news and hear 12 different people tell the same four stories in much the same format as the Network News for 20 hours of which the majority will be advertising.  And four hours of late night Specials about things you wonder why you stayed up to listen to. Half of which will be repeats.....   OR you can go for a drive  
    • Afennell19
      Audio Dampening and quiet

      By Afennell19 · Posted

      Did you ever figure this out? My 2022 Trail Boss, and now my 2026 LT did this from time to time.  I believe it was more connected to Android Auto and my phone being the cause. Maybe try going for a drive, sans cell phone.... and see if it happens? 
    • Afennell19
      2026 Sierra 1500 Denali - Sound upgrade?

      By Afennell19 · Posted

      I have a 2026 Silverado LT, the non bose as well.  Upgrading the door speakers is pretty straightforward. You could honestly go to walmart, or Auto Zone/ O Reilly and get a set of 6x9s for the front, and 6.5s for the rear. You do also have to get some adapters for each, but they are like $10 a pair on Amazon. Then some plug and play harnesses that are about $10 a pair on Amazon as well.  And I would also suggest a 10 pack of the Amazon Basics sound deadening. Slap that all around the speakers and on the open metal of the inside of the door. And your golden.   I am currently doing this with my Silverado. Although I am having a bit of trouble because I am snooby I guess and bought some Alpine S2 S69c's which are 2 way components and I am having to wire from the door up to the dash....  Having never installed speakers before, its taking me just a bit to get everything correct. But if you dont buy expensive component speakers, and just some $40-$50 door speakers. You will DRASTICALLY improve the sound over these stock paper cone junk speakers. I thought my Silverado had an issue with the radio/ sound for a while.  Come to find out.  The stock speakers are just THAT SH*TTY   I cannot wait to have some decent sound in the truck   What did you end up doing?
    • newdude
      Parking Brake - Automatic Engagement Questions

      By newdude · Posted

      Its all automatic based on yaw sensor data.  If enough incline is detected, it engages.   My recommendation though would be to disengage it before driving off and not let it auto disengage by touching the gas pedal.  The HD trucks use the same setup as prior years, the drum in hat park brake.  But now with an electric actuator.  If you drive off repeatedly over time, it can torque the park brake shoes and can also prematurely wear them out.           Electric console shift will set the park brake on flat ground too.  Pretty sure they've got it programmed to activate every time.  
    • riddler
      Supercharger (whipple)

      By riddler · Posted

      Anyone install a a supercharger on your 6.6L L8T? Talk to me...

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...