Check for a bad thermostat or an air pocket in the cooling system...your fans should come on any time you turn on the air conditioning....check to see that both fans are coming on by doing this....trapped air is common because of the odd configuration of the cooling system...turn on all heaters and place fans on high...warm up the engine then add distilled water or dexcool to your engine coolant canister....rev a few times to pump coolant into heater cores.....good luck and be cautious when working on your engine please...
SOURCE: 1999 oldsmobile is overheating
If the previous suggestions don't help, you might want to check your coolant for bubbles; you could have a blown headgasket between the engine's water jacket and a cylinder.
If the gasket fails this way, it will force hot gases into the coolant path that will cause this rapid and intense heating.
The gasket does not have to be failed much to cause this and the early stages won't cause a cylinder to misfire but on cooling, the coolant can enter the cylinder and produce misfires for a few seconds when first started and this can show up as a fouling of one plug which can even show signs of rust if examined.
Also, check your oil dipstick for the color of your oil; it shouldn't look like Jergens lotion.
At the same time, look into the coolant bottle to see what it looks like since a failed gasket can also cause oil to leak into the coolant.
SOURCE: vehicle is overheating...2000 oldsmobile silhouette
It's possible you have a blown head gasket. In that case, the heater core which is above the engine fills with exhaust and stops working. To verify this condition, check exhaust for excessive white smoke. If leak is still small, it's possible you won't see much. In that case have a shop check the radiator for hydrocarbons (exhaust). If the test shows any in cooling system, you definitely have a head gasket problem.
I'd also check the thermostat. Sometimes it can give similar symptom but more often than not this will trace back to the hg.
SOURCE: I have a 1997 olds siloutte that is overheating
clean and degreese the engine from the top to the bottom. fill the radiator and start the van let it idle for at least 20 min and look for a leak. if no leak present look at the tail pipe smoke. if smoke is white you have a bad head gasket. Also check oil to see if it"s milky
SOURCE: car overheating had the thermostat changed
Yes I would check for a blow head gasket this can be an expensive repair so take to a shop to have checked
SOURCE: i have a 1995 oldsmobile aurora and i'm having
check your trany fluid .auroras transmission low fluid or currupted fluid couse overheat even witrh fans working
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