Question about 2000 Cadillac DeVille

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Possible Freeze Plug

On the right side of the engine, just under the timing belt, on the block seems to have a round hole when I'm loosing all my coolant. is that a freeze plug and what is the degree of difficulty to self fix?

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That would be a freeze plug. You will just have to get a new one, get a hammer and punch and tap the new one in

Posted on Feb 02, 2009

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I need to where is the freeze p[lug located and what do it look like

The engine block and heads have round holes in them to let the sand out of the casting when the engine was manufactured. Those holes are closed with a steel plug hammered in. Since those plugs are exposed to engine coolant they will rust and fail at some time. special tools have been designed to remove and replace them. It's not an easy job.

Jan 10, 2014 | 1999 Chevrolet Lumina

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Coolant leak 1994 voyager 3.3

Could be a freeze plug on the engine block. If you have a block heater installed in one of the freeze plug holes, check it for getting too loose and leaking. Pretty common problem with a block heater that's been in there a long time.

Aug 25, 2012 | 1994 Plymouth Voyager

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I have a GMC 1994 Suburban with a coolant leak in the bottom of the engine, driver side, comming out of a round plug, that has wires going a plug on it. I have a picture I can email you...and just need...

If it's a round, cup shaped plug, about 2" or so... It's called a freeze out plug. These do corrode over time and leak. They are kind of a pain to replace, and I recommend using the correct tool to install the new one. (Freeze out plug installer tool.) These are meant to "pop" out if your coolant freezes so not to crack your engine block.

Sep 07, 2011 | 1994 GMC Suburban

1 Answer

Under the car it looseing antifreeze a freez plug is how to replace and want look like. 2002 chrysle concorde with 2.7

Your motor has several freeze plugs. The freeze plug holes are located usually 3 per side on the block, 2 in the ends of each head and 2 in each end of the block. Determine approximately what location the coolant is running out from, feel around the block for an actual round hole/cavity in the block. They are different sizes. some as small as 1 inch diameter to as large as about 3 inch diameter. Find the cavity that is not filled, as you can stick your finger deep into the block/head.
Then measure this hole. The easiest type relacement plug is called an expansion type. It is like a rubber stopper that you tighten a bolt in the center of it to expand it/tighten it to the full diameter sealing the cavity. Found at most parts stores. They come in a variety of sizes, so you must try to get extremely close to the actual diamerter of the freeze plug hole in the block/head to make it work. Install new plug into hole pushing rubber portion in all the way until the flat metal washer part of the expansion plug contacts the block/head surface. IT MUST be flush or evenly seated in the freeze plug hole/cavity in the block/head. Tighten center nut on new plug to about 25 ft lbs. This will make the rubber part expand and seal into the hole. Refill coolant, check for leaks. In my experience, if you pop one plug, it is usually in the block first and one will be popped on both sides of the block. Feel around BOTH sides of block to verify all 6 plugs are in place! CAUSE>>
This is due to water in the coolant system freezing, due to poor coolant system maintenance. The freeze plugs pop out when the frozen water expands preventing the freezing water from cracking your block.You would be money ahead to drain/flush your system and refill with all new 50/50 antifreeze of the type recommended for your vehicle. NEVER put water in your cooling system! Use only in emergency, fix problem then drain and refill with 50/50 coolant! This will prevent this problem from reoccurring and damaging other cooling system components.

Jun 06, 2011 | 2002 Chrysler Concorde

1 Answer

How do i find the freeze out plugs on a 1990 s-10chevy blazer

You are looking for a round hole in your engine casting that is filled with a plug. Most of them, and there are several, will be about 11/2 inches round and set into the block about 1/4 inch. There should be 3 down each side of the block midway between the head and the oilpan. There are 1 each at each end of the heads and 1 at the back of the cam and a couple under the timing chain cover and a couple behind the engine under the bell housing. I'm probably mssing some.
If you are looking to put it a block heater, usually the middle one on the driver's side is the easiest or the middle one on the passenger side. The middle one is best as the heat gets distributed a little more evenly.
If you need to change one that is leaking, measure carefully before you knock it out to be sure you get the right one to put back in. They are various sizes in 1/8 or even 1/16 increments.
Hope this helps.

Dec 13, 2010 | 1990 Chevrolet S-10 Blazer

1 Answer

Topped up coolant reservoir on a focus 1.8 zetec engine and found a leak. it seems to be coming out of a hole on the side of the engine block. It looks as if some sort of bung may be missing? if so what...

Sounds like a freeze plug. See picture below. These are put in to prevent the block from cracking when coolant freezes inside. They are easy to replace if you can get to them. Use a screwdrive and pliers to pry the old one out. Make sure you get the right size or pick up a variety of sizes for your engine, and also get some high temp sealer. Clean the hole well with a screwdriver, and slob a geed bead of sealer around the hole. Use a socket that fits into the plug somewhat snugly and a hammer to drive the new plug all the way in to the stop. Let me know if you have questions.


Dec 11, 2010 | Ford Focus Cars & Trucks

1 Answer

Where are the freee plugs located on a 2002 dodge stratus?

Both sides, front, and back of the block. It's not a job to be taken lightly. If by any chance you can happen to see one. Look for an indentation on the engine block under the exhaust manifold. Looks king of like the inside of a baby food jar lid. Since you have a transverse (sideways) engine. Front and back are relative, meaning...the front of the engine is on the passenger's side, and the back of the engine (driver's side) is mated to the transmission. If you are able to locate the plug(s) that is/are leaking and remove it/them. They can be replaced with expansion freeze plugs that go in the hole and tighten with a wrench. The function of the freeze plug is to release pressure to from freezing. If an improper coolant mixture is in the engine and the coolant (antifreeze) happens to freeze. The plug pops out to diminish the chances of the engine block cracking. They are however prone to rust under certain circumstances.

I hope this helped.

Feb 26, 2010 | 2000 Dodge Stratus

1 Answer

Where is the thermostat on a 1993 audi 100 cs 2.8 v6

The thermostat is located in the engine block just to the side of the water pump underneath the housing where the upper radiator hose is attached.
  1. Remove the lower engine shield.
  2. Place a large drain pan under the vehicle to collect the coolant.
  3. Remove the radiator cap and drain the cooling system into a suitable container.
  4. Place a large drain pan under the engine block drain located at the bottom of the engine near the vicinity of the flywheel and the oil pan.
  5. Drain the engine block coolant into a suitable container.
  6. Place the (hood) lock carrier in the 'service position'. For additional information, please refer to the following topic(s): Body And Trim, Service Position, Front Bumper, Hood Lock Carrier.
  7. Remove the accessory drive belt. For additional information, please refer to the following topic(s): General Information And Maintenance, Routing Maintenance And Tune-Up.
  8. If installed, remove the upper front engine cover.
  9. Remove the toothed camshaft drive belt from the right side cylinder head to allow enough access to remove the thermostat housing. Cover and protect the drive belt from residual coolant.
  10. Remove the mounting fasteners; remove the housing, then the thermostat.

Nov 27, 2008 | 1999 Audi A8

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