Question about 1997 Oldsmobile Cutlass Supreme

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Losing antifreeze coolant

It is not leaking out of this 6 cylinder. It is almost like it is slowly burning it. I have added about two gallons in the last six months. What kind of problem does this indicate?

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  • tbryant51 May 18, 2009

    antifreeze leak at rear driver side of the engine?


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It probably is a head gasket, unless you can smell anti-freeze inside the car, then that probably is very small leak in heater core.

Posted on Apr 13, 2009

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Has The 2003 X-type 2.5 L 6 cylinder had problems with antifreeze evaporating?

Coolant doesnt evaporate if you dont see coolant leaking so it must be burning it thats not good karen i incleded a video i personnely change a few overflow thank on those x type

Mar 29, 2015 | Cars & Trucks

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Why is my car losing antifreeze but there are no visible leaks, even under pressure??

Usually means you have a head gasket leaking coolant into the cylinders and the engine is burning it out the exhaust pipe. Once the leak gets bigger than what the cylinders can burn, it will show up in the engine oil.

Jul 28, 2014 | 1993 Mercury Grand Marquis

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Losing coolant with no visible leaking detected

is their steam ir white smoke coming from the exhaust if so u possible have problem with a gasket leak can be head or intake either one will allow fluid into cylinders

Mar 31, 2014 | 2005 Dodge Ram 1500

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Losing antifreeze but not on ground not in oil

Generally speaking, if there are no external leaks, odds are the engine is burning the coolant out the exhaust pipe due to a leaking intake or head gasket.
I have a 97 Nissan that drinks a half gallon per week but still runs.

Mar 08, 2014 | 1999 Chevrolet Monte Carlo

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Losing coolant, no leak, not overheating

That would relatively normal usage. Coolant is 50% water so repeated heating to near boiling is going to have an effect. Unless you are adding by the gallon, I wouldn't worry.

Aug 22, 2013 | 2002 Cadillac Deville

1 Answer

I have a 2004 Nissan Xtrail. I have been losing coolant, even though there are no apparent leaks. Now I am experiencing loss of power intermittently, especially uphill, even to te point pf crawling.. ...

Generally speaking, if you are loosing coolant and there are no external leaks, its usually being burned in the cylinders and going out the exhaust.
You can burn a gallon a week and not see any smoke.
You may want to pull the spark plugs and look for signs of a head gasket or intake gasket leak.
Coolant can also weaken the spark plugs and affect the performance of the engine.

Sep 14, 2012 | Nissan Cars & Trucks

1 Answer

1998 olds silohette losing coolant, no appearant signs

Hello, These where know to have intake gasket problems. The coolant leaks into the cylinders slowly burning it so you wont see a leak or a sign of a problem untill it get worse.

Jan 15, 2011 | 1998 Oldsmobile Silhouette

1 Answer

1991 Cadillac Fleetwood. The heater was working on passenger side but not that warm. Added antifreeze. Seems to be leaking it. Keep adding. gone thru 2 gallons. How do i get heat.

If you've added two gallons of antifreeze, you need to find out where it's going. Make sure the antifreeze you are adding is diluted with water in a 50/50 solution. Pure antifreeze has little freeze protection and boils quickly. If there is no visible leak, check your oil for coolant contamination. Fill the radiator and leave the radiator cap off. Put the heater controls on hottest setting, but do not turn the heater on. Start the engine and watch the coolant. If the coolant level drops, add more to full. If the coolant is flowing thru the radiator when you first start the engine, the thermostat is stuck open and needs to be replaced. If the water is not flowing, then keep an eye on it and wait for the thermostat to open. Add antifreeze to keep the radiator full. Look for air bubbles or lots of foaming in the coolant. That would indicate a blown head gasket and the reason you are losing antifreeze. If there's no bubbles, and the coolant level stays full, put the radiator cap back on and see if the heater is working better.

Jan 11, 2011 | 1991 Cadillac Fleetwood

1 Answer

Losing a gallon of antifreeze every 50 miles

try some rad weld added to the resevior it will plug any small leaks that you wouldn't notice

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