94 4.6 Water Pump Housing question

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Northstar Engines and System Technical Discussion Discussion, 94 4.6 Water Pump Housing question in Cadillac Engine Discussion; Can anyone tell me if the Water Pump Housing has a coolant passage just aft and kind of below the ...
  1. #1
    DBC's Avatar
    DBC is offline Cadillac Owners Member
    Automobile(s): 1994 SLS
    Join Date
    Dec 2010

    94 4.6 Water Pump Housing question

    Can anyone tell me if the Water Pump Housing has a coolant passage just aft and kind of below the water pump? Does the housing connect into the block, coolant passages I mean, as it crosses over the engine? I cannot find any images of the back side of the housing unit to see what is there. Is it just attachment bolts with big rubber bushings to insulate the connection? Or are there coolant passages where I see these rubber gaskets between the housing and the block?

    I'm asking because I thought maybe my water pump gasket or shaft was leaking but now that I have everything out of the way I am wondering if it wasn't coming from a little father aft of the pump.

    I suppose I can just put it all back together and see if I still have a leak since I am as far along as I am.

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  3. #2
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
    Join Date
    Jun 2004
    Woodstock Ill.

    Re: 94 4.6 Water Pump Housing question

    Tech Tips section is for "tech tips" not questions. I'll move this to the Northstar section.

  4. #3
    mhamilton is offline Cadillac Owners Connoisseur
    Automobile(s): 2006 XJ, 2000 Eldorado ESC--total loss :(
    Join Date
    Aug 2009
    North Carolina

    Re: 94 4.6 Water Pump Housing question

    There's a crossover How-To somewhere on this site, but I don't have a link handy. This is a picture from that thread showing the back (engine side) of the crossover.

    I assume it's the same or similar for your '94. The crossover connects the 4 engine water jackets to the pump, radiator, and heater.

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