1997 Aurora--Running very Hot--tried several things __HELP

[billysandra]

I have read almost everything on over heating on the Aurora. My question is I see one of my electric fans running but just one. Do the fans come on at different times or are they designed to come on together?

[LarsBars]

Originally Posted by billysandra

I have read almost everything on over heating on the Aurora. My question is I see one of my electric fans running but just one. Do the fans come on at different times or are they designed to come on together?

They should come on together at the same time.

[apollo7879]

The coolant fans have two speeds, depending on temp, vehicle speed, A/C press,etc.

Low speed: Right side fan runs at high speed, left side at a lower speed.
High speed: Both fans run at high speed.

[95supreme]

Quote:
"I have read almost everything on over heating on the Aurora. My question is I see one of my electric fans running but just one. Do the fans come on at different times or are they designed to come on together?"

They do not come on together. The second fan kicks in when the A/C is running.

I have a question, did you check the oil level on the car? Does the engine consume oil? I had that problem on my Cutlass Supreme. The car just consumed oil (all gaskets were replaced, and the coolant system was fine). I bought some slick 50 oil treatment for older engines with high km's on them. It greatly reduced the oil consumption in the engine, and in turn it ran about 10 degrees cooler too!

[WILL9390]

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.

[Hesam]

Originally Posted by WILL9390

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 thats 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
Hesam

[BNaylor]

Thanks for contributing. However, this is an old thread which has now been closed per our forum guidelines.

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