Question about 1997 Oldsmobile Cutlass Supreme

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No light comes on and the heater will blow cold and the overflow tank is low or empty so I add coolant and it blows heat again. when I had a oil change they said I had coolant in runs fine but

No light comes on like low coolant

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Its time to change the head gaskets . DON'T drive it or you'll be putting in an entire engine

Posted on Mar 04, 2014


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Posted on Jan 02, 2017


Harvey N Tawatao

  • 3854 Answers

SOURCE: 95 cutlass supreme leaking coolant from what looks

Your heater core has gone bad and needs to be replaced, If you go to Auto Zone you can pick up a new heater core and they will have the step by step instructions to doing the job yourself. If your lucky, may be the radiator hose to the heater core has failed at the cores pipes and it's only the hose that needs to be replaced but thinking not. You can get by pass the heater core for now so you can still get around till you pick up the new Heater core. Follow the two hose that goes to the fire wall and disconnect both of them from the pipe from the firewall, then with a pipe and two clamps, connect the two hose together and that's how you by pass the heater core. Good luck friend and hope this helps. 

Posted on Jul 03, 2009



  • 2007 Answers

SOURCE: I have a 1994 Olds Cutlass Supreme overheating

If it's the water pump, you should be able to see it dripping just behind the pulley. The seal on the water pump is usually what goes. If there is antifreeze drips all over the front of the engine, and it drips a bit after you shut it off, it likely is the water pump.
If it runs poorly when you first start it in the morning, however, you could still have a head gasket problem. If that is the case, you will see a lot of white exhaust, which is the cylinder blowing the antifreeze out. One thing you can do is run it with the rad cap off, and see if it continues to bubble. If it does, then your head gasket is leaking. I am assuming it is a V6, so keep in mind that you have 2 head gaskets. The other oine could be gone now if it wasn't replaced.

Posted on Apr 05, 2010



  • 15935 Answers

SOURCE: no heat

water pump has failed.

Posted on Jan 04, 2009


  • 3640 Answers

SOURCE: 95 cutlass supreme coolant circulates

try by changing the thermostat. if it sticks closed, coolant will be deverted to buy pass hose will not heat up. have a good one !

Posted on Dec 15, 2010


  • 266 Answers

SOURCE: recently purchased 1995 cutlass supreme

Not good news , and hate to tell you ,but the head gasket is blown between 2 cylinders. Had this happen to me .No white smoke, no coolant in the oil, but if the engine overheats in a short time ,You will notice the coolant will blow out the radiator ,if the cap is removed. Also if the engine is a quad 4 ,you also will need to change timming chain and tesionors. Tough job. If you bought from a dealer they should repair the problem. If not, I would consider engine replacement with a good used engine. It would save alot of work ,and in the long run ,a used motor ,with lower miles, would be the choice I would make. If you choose to repair old engine , there could be other issues. Warped or cracked head, damaged cylinder walls,ect... hope this will help in your decision.

Posted on Mar 27, 2011

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1 Answer

How do I fix a car that only blows cold air

I doubt it's a heater core.
first look in the radiator and make sure your coolant is full.
not just in the overflow bottle. a bad radiator cap may not allow coolant to refill the radiator . so the radiator can be low and you still have a full overflow bottle

so refill everything and drive it a few miles and see if your heat comes back.

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Heater keeps going cold when my overflow tank is empty?

You are probably losing your coolant through a bad head gasket in the engine. If so, you should be seeing a milky exhaust. However, you also may have a pinhole leak on one of the hoses - at operating temperature, the coolant will evaporate as soon as it hits the engine, and after stopping you may detect a glycol smell under the hood. A cooling system pressure test may help identify the problem.

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1996 Chevy Lumina overheats. Radiator replaced, water pump replaced, thermostat replaced, heater core bypassed, temp sensor replaced. Air blowback into the overflow tank. Looks like it is boiling but it...

Pressure in the header tank with cool water is a classic sign of head gasket blowing between cylinder and water jacket. Not bad enough to blow water into the oil yet.

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I have a 2007 nissan xterra. When I stop at a light or idle, the heater blows cold air. When I increase the RPM's the heater air warms up again. What could be the problem?

your coolant level is low in the overflow tank/pressure tank. the pressure tank is right by the washer fluid fill cap. its the white tank right behind the washer fill cap, which is blue. make sure you dont open the overflow tank when vehicle is hot. add coonalt into the white tank. you can seethrough the tank. the tank is glued together from 2 sections. lower and upper. you can see the seam when you look at it. fill coolant so its above the seam. that will do it.

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If the coolant level gets too low, the air gets inside the cooling system and there's no proper circulation. Here's how you can fix it yourself: turn the heater on maximum temperature (inside the car), then start adding BMW coolant (it has to be the BMW coolant) to the overflow tank -cooling reservoir. Some models have a bleeder on the upper radiator house, so you have to loose the bleeder. The fluid will push the air out- also there may be a little of coolant coming out, which is O.K..
Next, tighten the bleeder after the coolant reaches the maximum level,close the reservoir and start the engine and wait till it warms up to the normal operating temperature or in other words, when the cooling fan (the fan is just behind the radiator) turns on and off. One more thing, there should be hot air blowing out of the heater inside your car. If it blows cold air, there's still some air in the cooling system and you should see a mechanic.If you don't, you might over-heat the engine.

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Why am I losing coolant and have no heat or air?

I would start by checking for coolant leaks. Common places would be in the waterpump or heater core. Heater cores can crack and leak. The heat from your vents inside the vehicle comes from air passing over the heater core, which is heated by the hot coolant flowing through the heater core. It acts in a similar fashion to your radiator, with the purpose of heat transfer. A coolant system that is low on coolant will not transfer heat through the heater core. Also, deposits from the coolant system can collect and plug the heater core which will restrict the flow and the amount of heat that is transfered to your heater. If you don't see coolant leaking externally, it may be leaking into the engine. this may be from a blown head gasket or warped head. If this is the case you may notice some whitish color smoke coming from the exhaust, as well as your coolant overflow/storage tank fluid level may increase.
The air conditioning is a seperate system and may be a seperate issue. The system contains liquid freon like a refrigerator. You can by recharge kits at your local autoparts store. If the kit works, you may find there is a leak in the system and you will loose cold air after some time. If thats the case, a certified dealer can fill the system with colored dye to help locate the leak. A bad compressor or evaporater can also cause a/c systems to fail.

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1 Answer

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