Question about 1988 Oldsmobile Delta 88

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Do I have to remove everything above the thermostat housing to replace the thermostat?

I have removed the one(1) bolt that holds the housing onto the block.Does it have to be rotated in order to get to the thermostat,or should it just be pryed up and out?

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  • 5,317 Answers

Wups, back up, sclatt-that housing should have two bolts (almost all do, some have three, but very seldom). The housing should pull straight off or up, wherever it's situated on the engine, exposing the thermostat, which you then remove from the engine block. Again, just lift it out. Take careful note of how everything came apart, so you can put it back right (like the gasket, parts removed, the seating of the thermostat, etc.).
Ease of access is the key to whether you have to remove or set aside anything in the way of replacing the thermostat. The housing should come right off once the retaining bolts are removed. If it's stuck with old gasket sealer or corrosion, just tap it lightly till freed. Putting it back together is where you need ease of access-you want the gasket to stay in place, the thermostat to stay in its place, the retaining bolts to be easily reached and torqued down to specs. If you don't have a torque wrench, or unable to borrow one, snug them down evenly, and then just past snug by a hair-about 20-23 ft.lbs is what I'm trying to say.
I hope this helps you. Good luck.

Posted on Feb 19, 2012


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SOURCE: One bolt thermostat housing. How do I get the housing off?

remove the other bolt from the thermostat housing and remove the housing. My fear at this point would be that by removing intake manifold bolts and wiggling the manifold you may have damaged the intake manifold gasket set, which is a much more indepth repair

Posted on Nov 27, 2008

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Related Questions:

1 Answer

Where is the thermostat located & how to replace it ?

Follow the top radiator hose to the engine. The thermostat will be in that area (usually connected to the hose..)

26022036-1nupyibathm30i022zdl4zhz-3-0.jpeg Remove the radiator hose and then undo the bolts that hold the thermostat housing onto the engine.


26022036-1nupyibathm30i022zdl4zhz-3-3.jpeg The thermostat housing will have either 2 or 3 bolts, depending on what type of vehicle you have.
Simply prise off the housing and remove the thermostat.

26022036-1nupyibathm30i022zdl4zhz-3-6.jpeg This is what the thermostat will look like. It only fits one way.
Prior to replacing the thermostat clean the housing and mating faces where it bolts onto the engine. You will need to replace the small gasket (which should be supplied with a new thermostat).

You can also use sealant - available from car shops.

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