Northstar coolant leak
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Northstar Engines and System Technical Discussion Discussion, Northstar coolant leak in Cadillac Engine Technical Discussion; Hi i have a 2000 cadillac deville and my car has started leaking coolant. When i check the leak it ...
  1. #1
    jcgtex is offline Cadillac Owners Member
    Automobile(s): devile dhs
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    Northstar coolant leak

    Hi i have a 2000 cadillac deville and my car has started leaking coolant. When i check the leak it comes from the back of the engine......i cant seem to see were the leak is coming from since everything is cramped up under there but it seems to drip down onto the side of the oil pan and exhaust pipe, can anybody help me figure out whats leaking?????

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  3. #2
    Ranger's Avatar
    Ranger is online now Cadillac Owners Member
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    Re: Northstar coolant leak

    A common leak point in that location is the two heater pipes that run along the rear head. Be advised, they are a PITA to change. You may need to lower the front of the cradle a little to give yourself a little more clearance.

  4. #3
    jcgtex is offline Cadillac Owners Member
    Automobile(s): devile dhs
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    Re: Northstar coolant leak

    also when im driving the car it doesnt over heat but if im idle or in park it starts to overheat quick.........im thinking about removing the valve cover to get a better look

  5. #4
    89falcon is offline Cadillac Owners Fanatic
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    Re: Northstar coolant leak

    Quote Originally Posted by jcgtex View Post
    also when im driving the car it doesnt over heat but if im idle or in park it starts to overheat quick.........im thinking about removing the valve cover to get a better look
    Please read this entire thread.......

    http://www.cadillacforums.com/forums...ling-fans.html

    while you may have a leak, the leak shouldn't be the cause of an overheat at idle, but NOT while driving.

  6. #5
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: Northstar coolant leak

    ...........and removing a valve (cam) cover will not accomplish a thing - are you talking about the silver plastic engine beauty cover ?? It's there for little other than making the engine look less like an engine. You remove that to do all sorts of checks and maintenance.

    Read ALL of 89falcon's link - you need a better picture of how and why that temperature gauge moves.

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