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  • Intake Manifold needs cleaning

    ok i went to clean my TB (01 silverado 5.3)today and i saw the Intake Manifold was all gumed up..its there any other way of cleaning this besides sprayin TB cleaner in it... its a 01 silverado Z71 5.3
    Last edited by Z71 Chevy97; 04-29-2008, 07:12 PM.

    2001 Z71

  • #2
    Re: Intake Manifold needs cleaning

    They're all that way. You can thank the EGR system for that. Honestly its really not hurting anything except maybe choking down the runners. When I pulled the valves out of my donor vortec heads to port them I dug through a good 1/4 inch of crude that was lining the walls of the intake ports before I hit the casting. The heads had 203k miles on them. I hate EGR. Like I said its not going to hurt anything, they're all like that but its stupid it even builds up in the first place.
    1995 Silverado - ported vortec heads, 4L80E, efans, LT4 Hot Cam, Rear disc brake conversion w/drilled and slotted rotors
    1999 NBS Silverdo - transgo HD2 shift kit, 3 inch dynomax ultra flow, Ford keys and 305/70-16 Mickey ATZs

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    • #3
      Re: Intake Manifold needs cleaning

      can you remove the EGR and block it off? dunno how this works anyways lol..i need a new one but $147.00 for the Delphi EGR is kinda crazy

      2001 Z71

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      • #4
        Re: Intake Manifold needs cleaning

        get a rag and some cleaner and start scrubbin. I just took apart the tb on the work truck and cleaned unerneath there it was dirty with 250,000 miles and never been cleaned. 3 black rags later and the truck runs smoother and better mpg too.

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        • #5
          Re: Intake Manifold needs cleaning

          Originally posted by 4x4chevydude
          get a rag and some cleaner and start scrubbin. I just took apart the tb on the work truck and cleaned unerneath there it was dirty with 250,000 miles and never been cleaned. 3 black rags later and the truck runs smoother and better mpg too.
          ya i just might have to do that..i sprayed soem TB/intake cleaner in there and it looks a lil better and seem like it runs smoother

          also took off the whole EGR system that bolts to the block and cleand the tube that goes into the Intake manifold

          this shop was paid to clean this for me while he was doin my water pump, tie rods, pitman arm ect ect, but dont think he did
          Last edited by Z71 Chevy97; 04-30-2008, 07:54 AM.

          2001 Z71

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          • #6
            Re: Intake Manifold needs cleaning

            You can remove the EGR valve, but it will throw a check engine light. But like old red said it isnt really gonna hurt anything being in there.
            97 Gmc Sierra 1500
            Current mods: Flowmaster 40's, K&N FIPK, S10 converter, wait4me tune, LT1 fans, 2" drop shackles, Alpine CDA-9856 head unit.

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