darrel315 Posted January 14, 2012 Report Share Posted January 14, 2012 coolant leaking from back of engine of my 1996 cadillac coupe has northstar engine..engine froze up from cold weather..does the north star have frezze plugs..If so where are they located..how many are there,, and are they hard to replace.. please help Link to comment Share on other sites More sharing options...
Ranger Posted January 14, 2012 Report Share Posted January 14, 2012 Most likely your leak is coming from rusted heater pipes that run along the rear head. Link to comment Share on other sites More sharing options...
KHE Posted January 19, 2012 Report Share Posted January 19, 2012 No freeze plugs on the Northstar. Ranger identified the most likely source of the leak. You need to inspect the heater pipes. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
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