Question about 1993 Mercury Cougar

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  • Jimmy Hall
    Jimmy Hall May 11, 2010

    Why do you suspect that you have a cracked cylinder head or engine block? It could be a blown head gasket. Has the engine been subjected to a prolonged overheating condition? Or, freezing conditions without sufficient anti-freeze? Those are main 2 culprits for cracked heads & blocks. You didn't say how miles are on the car. The head/s would need to be removed for the repair anyway, unless you're trying to determine whether the car is worth all of the bother. Fill in the blanks for me & we'll go from there.


  • Håkan Sterner May 11, 2010

    The symptoms would be the same of a cracked block, a cracked or warped head, a blown head gasket. The history behind the problem, how it occurred and what events preceded it may give clues, also statistical data of confirmed points of failure gives directions to weak points in a particular model. You could provide the former and then the experts on the particular engine model could give the latter, combined it would give a pretty sure indication where to find the fault.


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Add a can of radiator sealant and if the problem goes away then it's in the head,if not it's the block.

Posted on Oct 23, 2009

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How to tell if you have a cracked block are blown head

This may be impossible without disassembly. If you were lucky and the crack is external, you could observe where leak is, but internal only leaks can be from a blown head gasket, cracked head or cracked block. Most common is head gasket, next head, and last block. Since anyone of these can cause water to enter the oil circuit, or oil to enter water, I know of no way to tell which is bad without a teardown.

Apr 06, 2016 | Cars & Trucks

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My bmw x5 2008 v8 is blowing white smoke wat tht mean

Most of the time blown or Cracked head means coolant in the oil

Feb 02, 2015 | 2008 BMW X5

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Is their any way to tell if it's a seal or a crack in the block?

You can not tell if it is a cracked block without taking the heads off. Most likely it is a bad head gasket.

Nov 27, 2012 | 1998 Saturn SL

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The cooling water of my F6a suzuki engine is mixing up to lubricating oil

If your head gasket is good, and you know this without a doubt, then you either have a cracked head/block or your head is warped. There is no other way for coolant to be getting in your oil. Heads aint any fun to take out and mess with but if you can do the work yourself it isn't to expensive to do. As long as your block is good. Good luck.

Aug 01, 2012 | Suzuki Cars & Trucks

2 Answers

What's the difference between a blown head gasket and a blown intake gasket?

The head gasket goes between the block and the head, and seals the combustion process, and cooling water, and (if oil is pumped obove the heads to valve components) oil pressure.

Intake gaskets seal between the intake manifold and the head, and seal against intake vacuum, and in many cases, coolant.

A badly blown head gasket will so destroy compression in the cylinder that you can hear uneven cranking as that cylinder comes up on compression, kind of a “whir, whir, WHIR, whir, whir, WHIR, whir” with the capitalized whir being the engine spinning much faster due to no compression holding the starter back.

You will never be able to hear a problem with an intake manifold gasket until the engine actually starts to fire and/or run.

Aug 10, 2010 | 1994 Pontiac Grand Am

4 Answers

I discovered water in my oil this morning on my 1999 blazer 4.3 v6 could this be the intake gasket?

It could be an intake manifold gasket causeing could also be a head gasket and/or cracked cylinder head. You can pressure test the cooling system to check the intake gasket, and compression test the cylinders for head problems.. If you have had an overheating problem in the past the cylinder heads and gaskets would mostly likely be the problem....Removing the spark plugs will give you an indication on where the water is entering...the plug will be discolored.
Good luck..i hope this helps..please rate me a fixya.

Jul 28, 2009 | Chevrolet Blazer Cars & Trucks

3 Answers

Engine oil in antifreeze

you have either cracked the block cracked the heads or taken out the headgaskets. this can be an expensive fix to do it right you will need to rebuild or replace the engine.

May 21, 2009 | 1999 Saturn SL

1 Answer

1983 Ranger

you have to pull it aprt again even though you changed the head gasket,did you plane your heads first,you might have an uneaven surface,but once you pull the heads off,try to check the cylinders with a bright light,check around the top of the cylinders it usally cracks there,a hairlane crack is all it takes,your probally going to have to pull the motor,and bring it to a machine shop,they can plane the block,and heads,and they can check it for cracks,if you have a cracked block they can put a sleeve in the cylinder thats cracked,but if I was you I would grab a junkyard motor and throw it in,I dont know what condition your truck is in but spending all that money on a 83 I would just grab junkyard motor

Jul 13, 2008 | 1983 Ford Ranger

1 Answer

White Smoke coming out of bonnet & exhaust,stinks of burning oil

oxygen sensor
oil leak at back of block thats spirting on hot engine block
bad oil rings in block
valves bad
head or head gasket worn and cracked check the oil if chocolate brown then this would be it
a/c preasure line busted or a/c locked up
water line busted on hot engine or small water leak
bad emmission components

these are the things i can think of off the top of my that could give this reaction in vehicle since im not there in person to see vehicle this will have to be what i think

Jun 16, 2008 | 1990 Ford Escort

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