1. W

    To change air filter

    What fuel economy we can expect for Duramax 6600? I have bought a used Duramax 660. Current the truck is producing 17-21 mpg when driven empty. That is fine. I am not happy with the power. I guess replacing air filter can resolve this issue. My friend suggested me an airfilter...
  2. 1

    Muffler delete

    Ok guys I done a muffler delete and I cleaned the intake 2 weeks ago. Now the problem is I'm constantly getting a P0420 code I checked everything no leaks in exhaust or anything. So I scheduled an appointment at the dealer just wondering if they will try to say the muffler delete caused it...
  3. juanr_08

    TRUCK ACTS LIKE WANTS TO TURN OFF. No engine light on

    Hey cgm peeps need some help. I've noticed when I start the truck it sounds like it wants to die on me and then runs fine after a few seconds, but this is not a everyday thing, at times turns on fine with no issues, but when it happens sounds like its not shooting enough fuel. Maybe fuel...
  4. D

    Draft tubes

    I bought a 1988 chevy 1500 with a 355 crate motor. Where do I hook up the draft tubes so they don't leak oil all over engine Sent from my SM-S820L using Tapatalk
  5. 88GMCtruck

    88GMCtruck's never ending 88 GMC build thread

    Here we go yet again! For those of you who follow my 98 dually thread or have seen elsewhere TLDR to the end. For those who are in the dark, I also have an 88 GMC K1500. We'll start with it's history. Grandparents bought the truck in 1988 brand new. It's a regular stepside K1500 350/700R4 truck...
  6. B

    I'm new and I drive a classless 'hoe (ver.2)

    So, I joined and posted an introduction the other day, but it seems that something transpired last night and the electrical gods deemed it fit to wipe me out of the system. Probably some glitch in the Matrix, Neo ate the other pill and the lady in the red dress actually gender identifies as a...
  7. C

    For Sale: 2010 silverado 1500 extended cab 2wd imperial blue lowered 55k miles 1 owner

    I am selling my baby, I never planned on selling, I had so many plans. I am selling because I am starting a business and could use the cash. The oil is always changed with royal purple, it is maintained early and often and is absolutely in no need of mechanical maintenance. The trucks paint and...
  8. J

    For Sale: FS: New TVS1900 Supercharger kit for GM truck/SUV

    Up for sale is a brand new Roush Intercooled Stage 3 TVS 1900 complete supercharger kit. It features the all new and extremely efficient Eaton TVS 1900 supercharger. It will fit 2007+ 5.3 and 4.8 Chevrolet Tahoe, Suburban, Silverado, Avalanche, and 5.3 and 4.8 GMC Yukon and Sierra, but can...
  9. SMiGGs

    Turbo 6.2 HVAC issue some help plz

    I just finished installing an 80mm Turbo on my 6.2 2011 Silverado. After getting all the issues worked out besides my faulty MAF, my truck for some reason blows hot air AC on or Off its still hot. At first I thought maybe it was the intercooler blocking airflow into the engine, but I cold...
  10. F

    New Member from Southern Indiana

    I just joined, looking for any tips/tricks and such for what I'm working on. I've got two vehicles, kinda trying to sell one or the other to fix the one I keep up for myself. Currently, I've got a running 1962 Chevy Corvair Monza 900. Wonderful car, mostly original, only replaced the gas...
  11. marc

    Marc's RCSB daily

    so injectors on the duramax are done and i am doing a bunch of other performance mods to make a race/daily truck. any who since the truck will be torn apart i needed a new daily. found this truck. its a 1999 regular cab short box silverado 4x4 4.3 v6 manual. has around 220,000km...
  12. A

    Longtubes too loud, need help with muffler

    Okay so I'll run through the current setup, calspped long tubes with 3" ory, 3" bullet after the y into 3.5" piping to a Aero turbine muffler, non resonated, to 4" tailpipe over the axle. The truck has always been this loud but now with 4.56 gears and a 2500 stall converter its unbearable when...
  13. jonmx477

    NBS E Fan swap

    04 Silverado 1500 Want to check a couple rock auto part numbers and look for some reviews from people that have got their EFan conversion parts through rock auto. First question though is, if I dont have a engine oil cooler port on the current 28" radiator will it matter if the replacement...
  14. D

    Important!: 1985 Gmc engine issue

    I got a 1985 gmc k15. It has a 283 block in it. The truck sat for 10 years. It wouldn't fire so we replaced the distributer and it fired up and we timed it. It reved nicely in park but when put in gear and you stumped on it It wanted to shut off.. So I got another used carb off a 350 and...
  15. M

    For Sale: MD- Slammed 2006 silverado

    For sale: 2006 silverado 215xxx miles. If you're waiting for it lets just get this out the way, that is the downside of this truck it has high miles. Located in Maryland but this truck is from texas. No typical chevy rust, has only been in rust belt since 2013 and I do take care of it. 5/8...
  16. low2thaearth

    Rough idle/power loss after CAI install

    Ok fellas, I've been researching for 5 days now on a problem I have with my 2012 Silverado 5.3l. I installed a Spectre brand CAI and I followed directions 100% and since install I have had rough idle, power loss(like truck is running in v4 mode), and stalls at startup. I've installed dozens of...
  17. J

    New from Denver

    Hello everyone, new to the forum. I have a Sierra ecsb with 6.2l k&n cai and spintech muffler. Looking to level it out and do some engine upgrades.
  18. THE Mook

    Mook's New (to him) Ride

    2014 Grand Cherokee Summit Hemi 4x4 I've already installed a new air controller. Also had Dean custom make some endlinks.
  19. Dakota

    1998 Blue-green Chameleon trans am

    Listing this for my dad. He doesn't really want to sell the car but his transfer case went out on his truck and he needs the extra cash to fix it. It is a 1998 Blue-green Chameleon t-top trans am with a ws6 hood. The body is in really good shape other than some surface scratches. The car has...
  20. TwistedWrangler

    Not really interior but engine bay

    Show me pics of engine bay color matching. Thinking of doing radiator shroud and engine cover. Don't want to make it look tacky by doing too much. Sent from my SM-G900V using Tapatalk