My oldsmobile aurora 1996 keeps saying low coolant level and is leaking.

to start with engine coolant is low like the light is telling you.correct that first then figure out why it went low. by the way..... you say it keeps comming on so.....I have to say.....if you keep driving it the way it is it will cost u dearly...that is if its not already too late

first there is a low coolant sensor in the over flow bottle,and the other is that you have a common GM motor problem. all GM cars and trucks have a intake manifold gasket leak

Here's a list of possible culprits:

Priority Action Part Type Cause
1 Inspect - Antifreeze Needed - Coolant Level Low.
2 Inspect - Heater Control Valve - Leaking or Faulty Heater Control Valve.
3 Inspect - Thermostat - Thermostat Stuck Open.

First thing to check is your engine coolant level - quick and free.
Since your blower works, my nominee for the offending part would be the Heater Control Valve, which redirects hot coolant into the passenger compartment heater core. Without hot coolant, the blower will just blow cold air, since the heater core isn't getting the needed flow of hot coolant through it.
There may also be a fault in the "Temperature Valve Actuators" (there is a right hand and a left hand version of these - one for each side of the car).
The Right hand Temperature Valve Actuator is AC Delco part #15-72971.
The Left hand Temperature Valve Actuator is AC Delco part #15-72972.
Their pictures are available in the online AC Delco Parts Catalog at:
http://parts-catalog.acdelco.com/catalog/catalog_search.php
Here are your parts search parameters:
Vehicle: 1996 OLDSMOBILE AURORA V8-244ci 4.0L F/I Vin C ID# 17739
Group / Subgroup: Heating/AC / Heater Core and Htr Control Vlv

Assuming the coolant level is full and no leaks I would say the water pump is not working. But it could be the temperature sensor as well or a blocked radiator.

sometimes the float in the coolant bottle gets stuck, you might have to pull the bottle out and clean it

I would check the level sensor in the coolant reservoir.

1996 OLDSMOBILE AURORA 4.0L 8-cyl Engine Code [C] DOHC
Engine Oil Grade 1......API* SAE 10W-30 is preferred......5W-30 optional CAPACITIES: Engine, with filter..........7.1 liters After refill check oil level.

If you changed the oil filter at the same time check that it hasnt come loose and leaked some oil though there would be signs of that where the car site. If it is overheating check your water as well.

Also check the oil for water and the water for oil as you will want to make sure that you havent done any head damage or blown the gasket.

The coolant level sensor in the coolnat reservior is shorted out . The coolant level when driving is circulating fine . The coolant must be going just past the sensor and triggering it off.

It may seem obvious but do not operate the engine with it overheating as this can lead to more trouble including a cracked engine block.

Low engine oil pressure is a problem because if it exists, the critical engine parts may not get lubricated properly and may fail. Since you have ruled out external leaks, here are some possibilities:

Clogged oil filter or obstruction in the system

Loose wire or faulty oil pressure or oil level sending switch/sensor.

Possible blown head gasket. This is a serious problem that might be accompanied by white or blue exhaust smoke and a burnt coolant or oil odor. Check for oil contamination with coolant. The dipstick may show a brown milky film/sludge or smell like burnt coolant indicating contamination.

Engine oil pump is possibly bad. This is a serious problem. It's usually time to swap out or rebuild the engine, particularly if it has many miles.

Possible but unlikely in this case is a problem with PCU (Power Control Unit) that runs the Information Center. PCU problems are often indicated by getting other unrelated errors on the info display or "DATE NOT AVAILABLE" for extended periods when you start the car.

You did not mention the Check Engine/Service Engine Soon light being on, but if so I would get the trouble codes read at the OBD II connector. The codes might indicate a sensor problem. Some auto stores do this for free. Either way, I would assume the worse case scenario (bad oil pump) and address it immediately. Unfortunately, due to the complex nature of the car, most things are not easy to diagnose and repair by the do-it-yourselfer. Hopefully though it is just a sensor but with a temperature rise, I would be careful.

Best of Luck!

SC442299

1996 Oldsmobile Aurora
4.0L DOHC 32V V8
Autobahn Option