Jump to content

2006 Silverado Coolant Leak

impala454
 Share

Recommended Posts

impala454 Enthusiast

impala454

Posted
Posted

I have a 2006 Silverado with a steady coolant leak, looking like from under the water pump but not 100% sure where the weep hole is or gaskets.  Can anyone confirm?  video of leak here.  Replacing the water pump i sa little out of my wheelhouse, and it was last replaced about six years ago.

 

CamGTP Senior Enthusiast

CamGTP

Posted
Posted

The weep hole is going to be under the pulley because that is where the water pump impeller is. That leak looks to be from the gasket between the water pump and the engine block. The water pump needs to be removed to clean it all up and replace it.

 

2006's are really easy for pumps, don't need to worry about the clutch fan. 

  • Like 1
impala454 Enthusiast

impala454

Posted
  • Author
Posted

Thanks a lot @CamGTP that helps.  I watched a few videos and do actually think it's something I could do.  Can you help me understand what you mean by not needing to worry about the clutch fan?  It is attached to the water pump so I have to get it off anyways right?

CamGTP Senior Enthusiast

CamGTP

Posted
Posted

The threaded water pump pulley on your truck has nothing connected to it, that is where the clutch fan would attach if it did have one. Your truck has electric fans, so the job takes less time to do.

 

Remove the air intake, remove the belt, drain the coolant and you can pretty much start removing the water pump right after that.

  • Like 1
impala454 Enthusiast

impala454

Posted
  • Author
Posted

Aaaah yeah I gotcha, great.  The videos I was watching were older models that did have the fan clutch.  Lol I didn't even pay attention that I don't have it, awesome.

EDS05Z71 New Member

EDS05Z71

Posted
Posted

that looks to far to the center to be the water pump gaskets. There are also coolant lines that run to the bottom of the throttle body and the steam port tubes. make sure its not them leaking

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • PhilB
      No 12v outlets in 2026 gmc Sierra

      By PhilB · Posted

      It is possible to add your own 12v outlet to your truck.  Check out this video:   I verified via GM Upfitters that pin 31 is the same on the 1500 trucks.  The wire is GM part number 84779405.   You can get the GM 12v outlet from Amazon  https://www.amazon.com/Genuine-Accessory-Receptacle-25774623-13549530/dp/B0F1H9YRGF EWAY 12 Volt Power Adapter for GM   https://www.amazon.com/EWAY-Chevrolet-Silverado-Cigarette-Ignition/dp/B0915RRW6Q/ref=sr_1_1?   I just haven't figured out a good place to put the 12v outlet in my truck.   Some people are getting USB-C to 12V adapters  https://www.amazon.com/WYMECT-Cigarette-Lighter-Socket-Adapter/dp/B0F87WNQKB/ref=sr_1_1_sspa? Not sure if they provide the correct amperage that a device like a tire inflator would need.  
    • Core-Lokt
      Wiring Help, Please

      By Core-Lokt · Posted

      Thanks; I looked there a few minutes, and I think I can find something. I really never looked there, as I thought it was stuff like PTO/aftermarket bodies/accessories like snow plows.
    • newdude
      2 speed transfer case optional now?

      By newdude · Posted

      This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
    • newdude
      Different requirements for oil filters?

      By newdude · Posted

      2013 5.3 still to this day calls for the PF48 filter.  Which as a 15psi bypass pressure.     There is a TSB, 17-NA-157 that talks about the PF-63 and PF-64 filters which have a higher bypass rating of 22psi.    TSB HERE - temp.xml   "Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out pressure. This means that the oil pump now does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.  Main gallery feedback oil pump control systems are present on the following engine families which use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6) Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil pump control systems are factory built with an ACDelco® oil filters"   It also calls out what engines use those filters.  The gen 4 small blocks were not on that list (LMG, LC9, L9H, L92, L94, L20, L96).  Gen 5 small blocks use the higher pressure filter.          That all said...   Your 7045 Napa filter is the PF63 equivalent, with 22psi bypass.  You are already using the higher bypass pressure filter.  You CAN keep using it, you don't technically have to use it though.  
    • Grumpy Bear
      Different requirements for oil filters?

      By Grumpy Bear · Posted

      Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...