Question about 1997 Pontiac Grand Prix

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How can I tell if I have a blown head gasket and how hard is to replace?

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  • Pontiac Master
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This is a big job, the heads need to be machined flat again, there a block test that will tell you if exhaust gases are in the cooling system, this is due to a bad head gasket or cracked head, by sending to shop the head can be plained and they will check for cracks that the eye cant see, these sometimes have bad head or heads. the other problem is the intake leak but if heads are done there will be new intake gaskets done also, this job would take a tech about 12 hour to do.

Posted on Oct 04, 2010

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  • Pontiac Master
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Depends on how it blows. Can cause oil to mix in coolant or coolant in oil. Can also let coolant into cylinders to cause steam in exhaust. Or, combustion gas into coolant--this will cause overheating. You can tell this one from other types of overheating by noticing bubbles coiming into the coolant reservoir or up the radiator with the cap off. Let us know if you have more questions.

Posted on Oct 04, 2010

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I have a 2004 grand prix and the coolant and oil mixed can i get some block sealer

Posted on Apr 02, 2013

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Posted on Jan 02, 2017

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SOURCE: head gasket sealant

As a A S E Certified Tech I Do NOT RECOMEND ANY "QUICK FIX" ADDITIVES Especialy for such a Critical Engine Component

More Costly but Also More effective is to Tear down Engine and Replace Head Gasket as You may have A Cracked Head Or Block That NO ADDITIVE will TRUELY REPAIR PROPERLY

Rough Estemate In USA Midwest $350.00-$600.00 For The Real FIX yep they vary that wide Some of us Love Helping PEOPLE the Rest LOVE THE MONEY MORE

Posted on Jan 14, 2009

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SOURCE: HOW TO FIX A BLOWN HEAD GASKET ON A 1997 PONTIAC

This is a very lengtht process so my suggestion to yoy is to go to an auto parts store and ask for a "chilton book" for your vehicle.this book will walk you through the process

Posted on Apr 16, 2010

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A warped head will cause a gasket to fail, the process of replacing the gasket includes checking the head for warped surfaces. At this point it is hard to say what caused the gasket to fail.

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How can i tell if i have a blown head gasket and is there a difference in cracked\warped head or blown gasket when diagnosing?


Hard to tell if its a blown head gasket or warped cracked head. The symptoms will be the same. The way to check is to pull the spark plugs and look at them. If one is super clean then more then likely antifreeze is getting in that cylinder. You can buy heavy duty sealant to try to seal the leak up. You get this at a auto supply depot. Get the one that you have to drain antifreeze and replace with water. You run the engine with the spark plug removed from the cylinder that was leaking until no water comes out

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There is really no difference between a blown or cracked head gasket. In either case the gasket would have to be replaced. Generally the term "cracked" is used when referring specifically to the cylinder head/s its/them selves. If the cylinder head is cracked it is a much more expensive repair.

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a cracked head or blown head gasket,will cause your vehicle to have a miss in the cylander where the crack is or where the gasket is blown. you can also see coolant leaking if the gasket is blown. you can also see water in the oil,and white smoke come from the exhaust.
to tell for sure that the head is cracked,and not just a blown gasket is to remove the head. you will instantly see if the gasket is blown. if its not,then turn the head upside down and look at the small space between the valves,as this is where 99% of cracks occur.

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Conflicting/confusing answers. FRUSTRATED!


If you don't know the extent of the damage do not add any kind of sealers to your motor. It doesn't have to be a blown head gasket. It could be a cracked head. If you add those products you need to understand that they are last ditch efforts to get a little more time out of a motor. After that you can expect to change the entire motor, radiator and the heater core, just to get those off the shelf remedies back out of your vehicle.

Feb 27, 2010 | 1997 Oldsmobile Cutlass

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28 Solutions for ''HOw can I tell if I have a cracked head blown head gasket or cracked blown like how can I see it''


Often (but not always), a blown head gasket will also cause deposit of water on a piece of cardboard held an inch from the tailpipe output while the engine is running (when this is happening, it is likely that the catalytic converter has been ruined and the muffler will corrode in short order as well).

Sometimes drops of water will be seen dropping from the end of the tailpipe. Another clue: turn on the heater; often when the head gasket is blown an odor of antifreeze and synthetic rubber will emanate from the heater vents.
Many of the symptoms of blown head gasket can be caused by some other problem in the cooling system, without the head gasket being damaged. Conversely, other problems with the cooling system can cause a blown head gasket and/or warped head.

When checking for a blown head gasket, one of the most common tell-tale signs is a milky-gray ring around your oil cap. When coolant enters the engine oil through a crack in the head or through a blown gasket, it evaporates and leaves a milky ring around the oil cap. Another easy way to tell is to check your oil dipstick. Change your oil and pull out the dipstick. Make sure that you take note of how far up the dipstick the oil is. Top off your cooling system and fill your cooling reservoir to the top. Screw radiator cap back on and start engine. Run engine for about 20-30 mins. or until it reaches normal operating temperature. Allow engine to cool (engine must cool completely to get accurate oil reading!!). Check oil dipstick again. If the oil has a watery appearance and has risen noticeably up the dipstick, the you probably have a blown head gasket or a warped head. Also look for a dripping, sweet-smelling liquid coming out of your tailpipe. Any of the above symptoms could be the result of a blown head gasket. The easiest way to tell is with a compression meter. This replaces the spark plug and lets you know what compression each cylinder is running at. If your compression is abnormally low, then you have a blown head gasket or a warped head. (note: consult repair manual for appropriate compression of each cylinder.)

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Blown head gasket, how hard is it to replace? Is a complete gasket kit required?


FIRST IF IT IS A BLOWN HEAD GASKET IT IS RIGHT COMPLICATED IF YOU DO NOT KNOW WHAT TO DO...ME PERSONALLY.. YES I WOULD DEFINATELY GET THE FULL GASKET KIT..DON'T EVER DO ONE HEAD DO BOTH.. HAVE HEADS ONCE OF ENGINE TAKEN TO MACHINE SHOP TO GIVE FULL BATTERY OF TEST...

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Paid $500 to replace fuel sender unit...made car worse....then they replaced fuel pressure system...made car even worse...now they say my head gasket is blown and wanting me to pay $950...can their mi


no their mistakes could not have led to the issue. just their bad diagnostics missed it to begin with. the dealers do not always have the most competent shop. i would usually tell people to stay away from them and use the other shops around. you are not the first that i have heard with problems they cannot diagnose. go get a second opinion from another certified shop.

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