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Premium Member
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Discussion Starter #1 (Edited)
2011+ LML FAQs

Here is a compiled listing of the most popular LML topics discussed here at DieselPlace.com. This is to help you speedily find your answers, without having to wait for a reply to your question. We love to answer questions, and enjoy gathering around the computer to help others out. We’ve all been there. This forum is a living library of information.

Click on the solid underlined word of any topic of interest and it will hyperlink you to the area in the forum where the information was first posted.

If you don’t find a topic listed, feel free to do a search. You may have to do an individual word or a phrase search, as with any search engine you may need to be creative in describing what you are looking for, don't give up if the first search you type comes back with nothing found. There is an entire forum search, and you can search within a forum sub group, author, subject or date. It may be worth your while to read all FAQ topics first so you can inject common phrases to work with on your searches.

Best way to use this thread:
Hit Control + F and depending on your browser, a "Find" box should appear. Type in a main word (example: injector) and hit enter or next. This will search the thread and highlight every time the word "injector" comes up. Or, you can just browse around the thread and find what you need. Everything is in alphabetical order.

Building the FAQ library - If you see a topic that you want to add or think should be added, please paste a link in a PM to a staff member. Or, click the Report Button (
) - include a blurb in the report indicating you would like to submit the thread for inclusion in the FAQ.

Latest updates posted - May 2015.

Other Topics Of Interest


Acronyms Find out meanings to common Acronyms and What They Mean

Air Intake

  • Air Intake & Warranty: Here

  • Stock - 1 vs 2: Here
Axles Front and Rear

  • Changing for Towing with Over Size Tires: Here
  • Front End Lockers: Here
  • Front Wheel Bearing Replacement: Here
  • Re-gearing to 4.11's: Here
  • Rear Axle Howling: Here
  • Rear Axle Service: Here
  • Rear Wheel Bearings: Here


  • Brake Fluid Flush: Here
  • Brake Grease: Here
  • Rear Brake Repair the Right Way: Here
Break In


Cooling System

  • 2014 Coolant Issues: Here
  • Coolant Disappearing: Here
  • Low Coolant Message: Here and Here
  • Over Heating: Here
  • Puking Coolant: Here
Cruise Control


Dead Pedal
DEF (Diesel Exhaust Fluid) / CEL (Check Engine Light) / SES (Service Engine Soon)

  • 2011 DEF Calibration Recall: Here
  • Can't Add any DEF: Here
  • Cold Weather & DEF: Here
  • Dash Says XXX Miles To Reduced Speed But DEF Is Full: Here
  • DEF Delete: Here
  • DEF Fluid Levels: Here
  • DEF Issues: Here
  • DEF Low Quality & Check Engine Light: Here
  • DEF Reading Wrong: Here, Here and here
  • GM Film on DEF: Here
  • Information About DEF: Here
  • Poor Quality Message: Here
  • Poor Quality Message - Hard to Clear: Here
  • SES - Service Emissions System: Here
  • Where to Buy DEF: Here
Diagnostic Trouble Codes

  • Diagnostic Trouble Code Lookup: Here
  • Scan Tool - Who Has One Near Me: Here
Down Pipe

  • Down Pipe & Clamp: Here
DPF (Diesel Particulate Filter)

  • Deleting DPF & Warranty: Here


  • Disable Daytime Running Lights: Here
  • FAQ's, Tips and Tricks: Here
Engine - Electrical

  • PCM Reflash 2011: Here
Engine - Miscellaneous

  • 2015 Elevated Idle: Here
  • Broken Flywheel: Here
  • Can I Get 600 HP: Here
  • Can Water in Exhaust Trigger Reduced Power Mode: Here
  • Drive Belt: Here
  • Engine Fire: Here
  • Engine Fire - Failed Grid Heater: Here
  • Engine Noises 1 - Jingling: Here
  • Engine Noises 2 - Typewriter: Here and Here
  • Engine Noises 3 - Loud Knocking:Here
  • Engine Noises 4 - Buzzing: Here
  • Engine Noises 5 - Ticking: Here and Here
  • Engine Noise 6 - Whirling: Here
  • Fire Wall Buzz: Here
  • Engine Warm Up: Here
  • High Idle - Adding: Here
  • High Idle - Do I Need It / What Is It: Here
  • Oil Pan Leak: Here

  • After Market Exhaust and Warranty: Here
  • EGR Delete: Here
  • EGT Question: Here
  • GM Exhaust Brake Video: Here
  • Leave Exhaust Brake on: Here
  • Reading EGT's: Here

Fastener Torque Specifications List

  • Fastener Torque Specifications: Here
Fog Lights

  • All On Tutorial with Pictures: Here
  • All On Using Diodes with Tutorial and Pictures: Here
Fuel Related (See "Mileage" under "M" below for Mileage Posts)

  • Air Dog Install with Tutorial and Pictures: Here
  • Anti Gel:Here
  • CP4 Failure: Here
  • Delco Fuel Filters PN TP3012 vs PN TP3018: Here
  • Fuel Lubricity: Here
  • Fuel Lubricity - Spicer Study: Here
  • Fuel System: Here
  • High Sulfur Diesel:Here
  • Metal In Fuel System: Here and Here
  • Off Road (Red) Diesel:Here, Here and Here
  • Poll: What Are You Using For Fuel Additives: Here
  • What Fuel Filter Do You Use & Where Do You Get Them: Here

Glow Plugs

  • Glow Plugs & Warranty: Here

Head Gaskets



  • Injection Pump: Here




Premium Member
14,363 Posts
Discussion Starter #2 (Edited by Moderator)


  • Cold Weather Mileage: Here
  • Mileage Misconceptions - What Works, what Don't: Here
  • MPG Confusion: Here and Here

  • How to Make Your Own Stainless Braided Hoses: Here
  • Stabilitrak: Is it Really Off: Here
  • Steering Wheel Shake: Here
  • Turning Off Traction Control: Here


Oil Related

  • By Pass Filtration: Here
  • Fram (and others) Oil Filter: Here
  • Oil Brand Poll: Here
  • Oil Gallery LeakHere and Here
  • Oil Leak: Here
  • Oil Usage: Here
  • PCV Re-Routing:Here
  • Synthetic Oil - How Long Between Changes: Here
  • Synthetic vs Regular Oil: Here and Here




  • Add a Regen Indicator: Here
  • Frequent Regens: Here and Here
  • How Does Regeneration Work: Here and Here
  • Regeneration While Driving: Here
  • Smoke Under Hood During Regen: Here
  • Shutting Down During Regen: Here



  • Power Steering - Hydro Boost Flush: Here
Suspensions and Lifts

  • 35" Tires: Here
  • 4" Lift: Here
  • 4" or 6" Lift: Here
  • Air Bags vs. Tork Lift Stable Load: Here
  • Rear End Rattle/Clunk: Here
  • Turning Up Torsion Bars: Here
  • What Shocks to Buy: Here


  • Changing Tire Size in Truck's Computer: Here

  • 2015 Transmission Problem: Here
  • Changing Transmission Fluid - The "Hoot" Method: Here
TSB's (Technical Service Bulletins)

Tuners, Programmers & Chips
  • 5th Generation Tuners: Here
  • Boost Pipe Rub Through: Here
  • Cool Down Time: Here
  • Turbo Noise: Here






Premium Member
14,363 Posts
Discussion Starter #3 (Edited by Moderator)







Premium Member
14,363 Posts
Discussion Starter #4 (Edited)
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