GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 7 of 7
  1. #1
    Jr. Mechanic
    Join Date
    Mar 2010
    Location
    Montana
    Posts
    134
    Blog Entries
    1

    Default off the wall but here goes

    The 5.7 motor has a black box on the intake right behind the throttle body. Any ideas what it is for ? Ive been looking at the cold air intakes most of them get rid of this box. I cant afford to get one right now but what if i went and took the box off and plugged the hole. Think it would do any good. Being poor sometimes sucks you always think up strange stuff.

  2. #2

    Default

    im not sure what its for but the truck is fine without it i put a cold air kit on my 96 350 vortec and that thing went in the trrash, i know they are not cheap but they are worth the money, the only thing i dont recomend is the throtle body spacer i should have just burned my 100 bucks on that one

  3. #3

    Default

    That box is a noise suppressor put on by the engineers. There's another one between the fender and the filter box. They put them in to make the govment happy.
    I used stainless duct tape to cover the inlet on the one by the fender, and fitted a paint can cap into the one on the tb. Looks stock, flows better, sounds better.
    These are why everyone says their truck sounds better when they add a CAI - no mufflers.

    Good luck,

    1999 Chevy K2500 Suburban 350
    K&N, reworked cai, Thrush cat-backs
    Vinyl, cranks, floor shift, and rear air!

  4. #4
    Master Mechanic Silverado Junkie's Avatar
    Join Date
    Feb 2010
    Location
    Lead Hill, Arkansas
    Posts
    541

    Default

    Throttle body spacers are only benificial on trucks with throttle body injection, not on vehicles with sequential fuel injection like the '96 and newer vortecs.
    1995 Silverado,Z71, 3-inch lift,2-inch leveling kit, SkyJacker Suspension, short ram-air intake, throttle body spacer, MSD ignition coil, straight pipes

  5. #5
    Jr. Mechanic
    Join Date
    Mar 2010
    Location
    Montana
    Posts
    134
    Blog Entries
    1

    Default

    Sweet thanks guys I never thought of a paint can cap to plug it off Ill have to try it.

  6. #6

    Default

    well the guy at summit should have told me that before i ordered it

    anyways you need to do the cold air kit on your truck i did mine at 230 thousand miles on my original motor along with dual exhaust and the power increase was very noticable

  7. #7
    Jr. Mechanic
    Join Date
    Mar 2010
    Location
    Montana
    Posts
    134
    Blog Entries
    1

    Default

    Right now i have a k and N airfilter, the exhaust reworked and small add on stuff for looks. Its coming along slowly

Similar Threads

  1. Do you show the White wall or Black wall on your tires?
    By Mean_Green_95 in forum POLLing place
    Replies: 83
    Last: 11-23-2012, 05:58 PM
  2. Replies: 0
    Last: 03-06-2010, 08:30 PM
  3. Downsizing Your SUV - Wall Street Journal
    By ChevyFan in forum Other GM Cars
    Replies: 0
    Last: 02-23-2010, 06:20 PM
  4. Are You Plugged In? - Wall Street Journal
    By ChevyFan in forum Chevy Volt Forum
    Replies: 1
    Last: 02-21-2010, 06:20 PM
  5. Off the wall question for all
    By homer911 in forum The Coffee Shop ~ Chit Chat
    Replies: 2
    Last: 12-15-2007, 10:45 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •