Question about 1986 Oldsmobile Ciera
The car runs hot like 260 degrees. it has had a new head gasket and new thermostat and new cooling sensor and new belts .the problem didnt start till firestone replaced the water pump in jan. the car has only 42000 original miles .it builds up alot of pressure in the cooling system after you run it. it seems to run a little cooler when the air cond is off like 240. the cooling fan works good it always kicks on around 230 degrees so i think the water pump might be bad or badly installed and ive heard some of those cars have some kind of plate between the water pump and motor and that it helps the circulation of water . do you know if this is true or do you know what the problem may be????
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Posted on Jan 02, 2017
SOURCE: 1994 Cutlass Ciera Runs Hot
If coolant can be detected inside the car, you need to replace the heater core. After it's replaced, the low coolant light should not come on after the heater core is replaced, and the system refilled. If it does, you need to check further. Go w/ the heater core for now, as it will fog up the inside of the car, and become a safety issue.
Posted on Nov 12, 2008
There seems to be an air pocket or no antifreeze in engine block. Try this method disconnect upper radiator hose and pour water directly into hose down into engine block until it full. when its filled reconnect hose and fill up radiator. as the vehicle warms up open bleeder valve on the thermostat housing and release air from system. open slowly and BE VERY CAREFUL WATER WILL BE HOT, bleed until you get a steady stream opening and cosing valve. However if all of this don't work. You may have a bad pump. Good Luck
Posted on Dec 27, 2008
Chanses are you got an air pocket in the system, there should be a bleeder on top of thermostat housing to bleed off the air, also might be one by the water pump. Its a common problem on them cars after you have drained the coolant to do thermostat or waterpump. Just bleed off the air and you should be good to go.
Posted on Feb 10, 2009
I'm not sure that they are an exact match, but the equivalent GM vehicles for the Cutlass Ciera were the Chevrolet Celebrity, the Buick Century, and the Pontiac 6000.
Posted on Mar 05, 2009
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Apr 09, 2015 | 1998 Dodge Avenger
A sticking thermostat will cause the Oldsmobile Cutlass to overheat causing serious motor damage. The thermostat controls your coolant system allowing enough coolant to flow through the motor keeping the motor cool. You can run your car without the thermostat to keep your car cool, but you will damage your heater as the coolant does not pressurize and get hot enough to maintain a hot temperature for your heater and defroster.
Pull the lever to open the hood to reveal the engine compartment. Locate the top radiator hose.
Unscrew the hose clamp with a flat head screwdriver or a nutdriver. Remove the hose completely to access the thermostat housing. You may lose some coolant when removing the hose.
Access the thermostat housing by unbolting the two bolts on top of the housing with a socket wrench.
Scrape the old gasket material off the surfaces of the housing until the surface is smooth.
Remove the old thermostat by pulling it out with your fingers. Remember the exact position as you will place the new one in exactly the same.
Place the new thermostat in the housing. Be sure it sits the same way the old one was positioned in the housing.
Place the new gasket around the surface you previously scraped. Ensure that the gasket sits flush on the surface of the housing.
Bolt the housing back together. Be sure the gasket is aligned correctly before you tighten the bolts.
Attach the radiator hose back to the thermostat assembly and the radiator. Tighten the hose clamps. Tug the hose on both ends to ensure it has a tight fit.
Refill the radiator with new coolant. You may have lost some coolant when you removed the hose.
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