Your 1995 aurora Oldsmobile runs hot and is revving really fast whats wrong?

Answer 1

My 1997 OLDSMOBILE AURORA only runs hot when the outside temperature is 84 degrees and above. I drive 105 miles one to work and in the mornings when the outside temperature is 76 degrees and below my engine runs normal from 160 to 200 degrees. When I leave work in the afternoon with the outside temperature 85 degrees and above get about 25 miles down the Hwy and the engine runs hot and boil all the water out of the reservoir. I replaced the radiator, water pump, thermostat, upper and lower radiator hoses, reservoir bottle cap and water pump pulley belt. I flush the system and when the outside temperature is 85 degrees and above te engine still runs hot. Can anyone help me.

Answer:

Most of the time, in Aurora cars, the overheating is caused by imperfect firing/spark, bad fuel mixture and exhaust blockage. To cure all for good :

1. change your catalytic converter every 70k miles, and if you have over 100k miles and still using the original converter that's your overheat problem.

2. Change your spark-plugs with NGK-Irridium plus and also get Borg-Warner wireset online.

3. Replace any of your 4 coils in the coilpack behind the engine that looks older. Changing all 4 gives long life to your car.

I did all 3 above, afterwards my car ran better than new, with more smooth power, cool and gave 24-25mpg (freeway) 21mpg(city) compared to 15-17mpg before.

Just to give you an idea of the cost:

#1 costs $160-$180

#2 costs $50 for plugs and about $112 for BWD (Borg Warner) wires

#3 about $50 per coil, $200 for set of 4(lasts for 70,000 miles)

If you ask me the cost is worth it because Auroras last for 250,000 miles under proper care. Make sure you only use Full-Synthetic oil and supreme unleaded fuel.

Good Luck