Probably a bit of corrosion there hit it with a bit of penetrating oil WD 40 or some thing and leave it for a few hours tap it with a hammer not too hard and try again
visual of head bolts on 1999 northstar
Remove with gearbox and suspension. Split off theengine from the subframe and gearbox. A northstar engine in an eldorado or Seville can be removed in four hrs.
The thermostat in a Northstar is located where the lower radiator hose enters the water pump. Drain some coolant, pull the hose, remove the themorstat housing, pull the old stat, and pop in the new stat. Reattach the housing, the rad hose and fill the surge tank to about 1" below the filler neck with 50/50 mix of coolant and distilled water.
Driver's side, front upper corner of the engine. It is driven by a small belt. The water pump requires a special tool to remove and install from housing.
With a pneumatic impact gun.
Not easily. Get a manual on your car.
you dont. a cadillac tech does
Remove the thermostat housing. where is, and how do i remove the housing
Remove the hose from the thermostat housing then remove the housing and then the thermostat.
Best way is to remove the water pump belt tensioner. to get the old belt off and the new belt on. this is the easiest way to accomplish the task. 2 bolts hold it in place on the water pump housing.
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