Question about 1998 Oldsmobile Aurora

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My 1998 oldsmobile is overheating my fans work it has a new thermostat and new water pump i have flushed the cooling system

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That leaves the radiator or the head gasket, do a compression test, look at the plugs for a whitish deposit, sure sign of coolant, good luck

Posted on May 28, 2010

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OVERHEATING


Water pump or thermostat .

Jun 11, 2016 | Cars & Trucks

1 Answer

Coolant light come on which indicates an overheating condition


You can never run water in the system, water will boil. You must have a 50/50 coolant/water.

Have the system flushed, the radiator can become restricted from old coolant, the fins have very small ports for flow and can become blocked leading to less cooling.

No thermostat means full flow, so this should not be running hot.

Usually the only way a water pump goes bad is when they leak, they are a direct drive, and the propeller never wears out unless at some point someone had to high of a coolant mixture.

Get the system flushed to clean it and have it made into a 50/50, can't have mostly water, coolant dissipates the heat.

If flushing does not help, the cheapest first thing is a new radiator, or get a new core for it, that's cheaper.

Apr 03, 2013 | 1998 Chevrolet Lumina

1 Answer

My 98 deville had a cracked radiator. replaced it. all was fine till a couple weeks ago when it overheated due to coolant leak from purge tank. replaced it. no more leaks but still ran up to 140 w/ air on...


First, you must have a properly installed thermostat that is working correctly. Second, Northstar engines are notorious for air in the cooling system after draining and refilling - keep checking the purge tank level after overheating and after the cooling system cools down. Third, make sure your cooling fans are working correctly (relay, fuse, temperature sensor) - check to make sure both are running when it overheats. If all the above is correct, the problem will probably be blockage in the system (try a flush) or your water pump itself is failing.

Aug 18, 2017 | 1998 Cadillac DeVille

2 Answers

I have a 1999 oldsmobile intrigue with a 3.5 engine and it is overheating what might be the problem?


It's usually the thermostat, I woud pressure test the cap. It may need to be flushed. Are the fans working? Is there a 50/50 mix of anti-freeze

Sep 11, 2011 | 1999 Oldsmobile Intrigue

1 Answer

I have a 1991 oldsmobile minivan where is the sensor for the cooling system i have flushed the system new thermostat pump is working proprely what else can cause it to overheat


What sensor for the cooling system? You will have a sender for the gauges and a sensor for the ECM, neithe rof which will cause overheating.
Is the cooling fan working? Engine driven? Make sure the clutch is good. With the engine off spin the blade. It should stop once you let go. If it spins for more than a second the clutch may be bad. If it continues to spin after the motor is turned off its bad.
Electric fan? Is it coming on? Turn on the a/c. That should at least let you know if the fan motor itslef works.
And if its running 220 degrees (mid gauge) that is not overheating. My car in this 98 degree weather can go to 220 in traffic.

Sep 02, 2011 | 1991 Oldsmobile Cutlass Supreme

2 Answers

2001 Oldsmobile Alero overheating


I think you started out looking in the right places. Replacing the coolant, thermostat, relay and sensor are all fairly inexpensive.

I believe you either have blockage in the system (especially if you're using tapwater), or your water pump may be failing.

I would first either take it to a radiator shop and have them flush the cooling system out thoroughly, or else pick up a chemical flush kit and do it yourself. This involves more than just drain and refill.

If this doesn't work, your next step will probably be replacing the water pump. At almost 200k miles, it's probably about due anyway.

Jun 16, 2009 | 2001 Oldsmobile Alero

2 Answers

2002 olsmobile alero w/ 3.4 litre engine overheating


your fans need replacing try hooking them up straight to battery to check if they spin fast its not the fans but the wiring.

Jan 11, 2009 | 1999 Oldsmobile Alero

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