Question about 1998 Oldsmobile Aurora

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1998 aurora car runs hot while driving changed radiator,hoses,belt&tensioner,water pump & I dont see any bubbles to indicate the heads would be leaking.Also car is hard to start after it warms up.

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  • mschmidt1702 Jul 17, 2008

    I started having the same problem about 3 weeks ago with my 98 Aurora. The water pump has been recently changed and I changed the thermostat right after it started warming up but that did not fix the problem. Only in stop and go trafic or in town. Seems as though the cooling fans have 2 speeds, they come on slow speed but will not switch on high speed when the temp rises. I thought about trying to jump out the relay contacts to see if the fans would switch to high speed, now I know how to do that.

  • lil_flip3870 Sep 28, 2008

    i changed my thermostat a while back, then i needed a tensioner pulley for my water pump, i have recently replaced that, i put a radiator on it, i needed a coolant sensor so i replaced the jug, fixed that problem. Does fine on highway or interstate,especially at nite but in town, it heats what other reasons could cause it to heat, because for some reason, i dont think my fans are kickin on, should i get a water pump, replace thermostat again, or get my fans checked?

  • romanian84 Nov 26, 2008

    temperture is running 1 line past normal, fans come on then turn of after 30 seconds, car does not overheat or even get cool, car temp stays at a line past the middle, romanian84@hotmail.com

  • Anonymous Mar 25, 2014

    Trac light turns on constantly and drives horrible we replaced the fuel pump, water pump, distributed cap, spark plugs, oil, radiater cap still can't find the problem. Thinking it has something to do with the security on the car. Does anybody have the same problems?

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3 Answers

This is jjajga617 found problem. Make sure the small air deflector isn't broken or missing. I put a new one this solved the problem.

Posted on Sep 16, 2008

I had that problem with the 98 aurora that I got last week. My mechanic opened the coolant reservoir and let it boil over until it stopped. Since then, no problem. It doesn't go above about 190 in stop and go traffic. He suggested that the previous owner overfilled it to get rid of the "low coolant" warning on the dash. I'll be flushing the radiator soon and will replace the coolant sensor then to fix that problem.

Posted on Jul 22, 2008

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I have had this problem with my 98 aurora and have replaced all the same components. Temp gauge routinely shows 200 on highway (Fine) but in the city in stop and go will get to around 245. I installed a switch to manually turn on the cooling fans by connecting the ground to pin 86 in the relay for the fan(s). Otherwise the fans will not turn on to 245. This fix works but would like to know an actual solution.

Posted on Jul 12, 2008

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How do I know if my water pump is bad. My 1998 Buick regal will not keep water in radiator. I thought it was the heater core but my floors do not get wet so now I'm not sure if its the heater core?


There are a number of possibilities. Does the car overheat? It can be a blown head gasket. To check this, open the radiator cap (not the plastic filler bottle, I mean the metal cap on the radiator itself).
Put your nose close to the opening and smell the water. If it smells of exhaust gas, you have a blown head gasket.
Another check is to pull out the dipstick and have a look at the colour of the oil in the sump. If it has a grey colour, you have a blown head gasket.
The first place to look however is check on the floor after you've driven the car for a while, and see if you can see water dripping to the floor, or if you open the hood immediately after a longish drive, check for steam which could indicate a bad head gasket that did not blow into the water chamber per se.
Steam from a hot engine will also indicate leaking radiator hoses or a leaking water pump.
If you suspect the water pump, again, open the metal radiator cap and fill the radiator to the top. Let the engine idle until it is hot, then rev it a bit. If the water pump is working, you will see the water inside the radiator circulating. Just make sure the engine is hot, else the thermostat will prevent the water from circulating.
An extra bit of information, if you can see the water circulating and also notice bubbles in the water, it is an indication of a leaking head gasket.

Oct 08, 2014 | Cars & Trucks

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Help not sure what to do next my 1988 ford ranger 4x4 2.9L replace radiator from a 1 inch core to a 2 1/4 inch core my temp before used to run 190 but started to over heat placed new thermostat, new...


run engine and check for flow in radiator, also check for foaming or bubbles head gasket may have blown . you my have a faulty water pump, check viscus coupling on fan drive, and belt tension

Jul 18, 2014 | 1988 Ford Ranger

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Over heating even after rmoving the thermostat


Are there air bubbles in the radiator when the vehicle is running? You may have a blown head gasket.

May 19, 2014 | 2001 Oldsmobile Aurora

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Coolant bubbling bact through resovoir.Replaced thermostat and water pump and flushed system. Still idels at 215 degrees and runs at 221. Top hose is hot and bottom hose os hot on engine side and cool on...


I doubt the radiator is plugged up. The hose should be cooler coming out of the radiator than going in (top).
If the overflow tank is bubbling it could be from the hot coolant, or you could have a head gasket leak and allowing compression - exhaust into the cooling system.

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1 Answer

1990 22r runs hot changed radator and all hoses , themastat, water pump works and does not leak. what can i do next


assuming fan is working, check for blown head gasket. Remove radiator cap, make sure it's full, start engine, allow to warm up. Once thermostat is open, check for bubbles coming up in the radiator. Combustion products coming into the radiator indicate blown head gasket. If this is not it or you have more questions, please get back to me.

Oct 27, 2010 | 1990 Toyota Pickup

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Hi my problem in my envoy 2004 is that I'm changed the water pump, fan clutch, radiator, thermostat and it's still overheating and evaporated the coolant on a 80 miles drive. My techs check and says that...


remove radiator cap, run engine, and look for bubbles coming up. Bubbles indicate blown head gasket. Also check exhaust for excess moistness/steam.

Oct 02, 2010 | 2004 GMC Envoy

1 Answer

2001 vw beetle service manual ? need to change water pump, how hard is it? dont look to bad.


Check this procedure to how to replace a water pump (DIY Complexity: Moderate / Time: 3.5 hours):

Parts:
1. Water Pump

Tools:
1. Screwdriver
2. Scraper
3. 3/8 in. Drive Ratchet
4. Cooling System Pressure Tester
5. Needle Nose Pliers
6. Socket Set
7. Radiator Hook Tool

Supplies:
1. Coolant
2. Silicone Sealant

Steps:
Step 1 With the engine off and cold, open the hood and locate the vehicle’s water pump.
o Tip: Safety Tip:Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or safety shoes.
o Tip: Before removing the radiator cap, squeeze the upper radiator hose to verify that the cooling system is not pressurized.

Step 2 Remove the radiator cap.

Step 3 Install cooling system pressure tester. Apply the pressure indicated on the radiator cap or in the owner’s manual.

Step 4 Inspect cooling system components for leaks.

Step 5 Place a drain pan under the radiator. Open drain valve or remove the lower radiator hose to drain cooling system.
o Tip: Depending on the vehicle, lifting the vehicle may be required to gain access to the lower radiator hose.

Step 6 Remove the drive belts or serpentine belt.

Step 7 Remove any hoses connected to water pump.

Step 8 Unbolt water pump from engine. Remove the water pump.

Step 9 Using a gasket scraper, clean the mating surface on the engine block.

Step 10 Install new water pump and new gasket. Tighten bolts to manufacturer’s specifications.
o Tip: You may want to use a light bead of silicone designed for water pumps.

Step 11 Re-install any hoses and belts that were removed.

Step 12 Re-install drain plug or lower radiator hose.
o Tip: Squeeze the radiator hose. If it feels soft you may want to replace the hose at this time. Always use new hose clamps.

Step 13 Refill radiator with a 50/50 mix of coolant and distilled water, then pressure test the cooling system and check for leaks.

Step 14 Fill overflow reservoir with same mixture.

Step 15 Leave the radiator cap off, start engine and let it idle. You should see the system“burping” bubbles of air. Refill the radiator to the top.
o Tip: Most air is expelled after a couple minutes of idling. Be cautious of potentially hot fluid overflowing.

Step 16 Install radiator cap.

Step 17 Road test vehicle, keep an eye on the engine temp gauge if vehicle runs hot, there still might be an air pocket in the cooling system. The cooling system should be topped off after vehicle has fully cooled down.

Good luck.

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1 Answer

After spending 880 dollors on having a head gasket water pump and radiator replaced in my 1998 pontiac sunfire 2.2 liter it has no flow thru the brand new radiator engine runs supur hot 260 degrees in 2...


YOU COULD HAVE A DEFECTIVE WATER PUMP OR THERMOSTAT ALSO RADIATOR PRESSURE CAP.MAKE SURE YOUR WATER PUMP IS BEING TURNED BY DRIVE BELT.NOT SLIPPING.MAKE SURE COOLANT SYSTEM HAS BEEN BLED AND YOU HAVE HALF ANTIFREEZE HALF WATER.CHECK YOUR CRANKCASE WHEN CAR COOLS DOWN.IF OIL STILL LOOK LIKE MILK SHAKE.YOUR NEW HEAD GASKETS LEAKING.THE MECHANIC WHO REPLACED HEAD GASKET DIDNT DECK THE HEADS.THEY PROBABLY NEED SHAVED A LITTLE SO HEAD GASKET WILL SEAL.

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3 Answers

Please Help!


YEP A BAD BELT TENSIONER CAUSES DRIVE BELT TO SLIP.CAUSING WATER PUMP TO TURN TO SLOW.CAUSING ENGINE TO OVER HEAT.

Sep 04, 2009 | 1996 Oldsmobile Aurora

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