Question about 1985 Oldsmobile 98

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Coolant pushing out

The problem i have is the coolant pushes out from the overflow bottle on a normal basis what can i do to find out what the problem is without taking the engine apart

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While the car is running, check to see if you see any air bubbles coming into the surge tank. If you see air, you have a leaking head gasket. You can also have your cooling system pressure tested, if your system is not holding pressure, you head gasket is definitely leaking.

Posted on Aug 06, 2008

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2 Answers

Can a water pump make water to return to the water bottle


If the engine overheats from a thermostat
stuck closed or bad head gasket

Aug 10, 2013 | Cars & Trucks

1 Answer

What causes coolant in motor to flow back into overflow bottle


motor heats up therefor the coolant expands and is forced back into the overflow/ reserve , if it is pushing alot back into the overflow/reserve , you most likely have a bad head gasket allowing compression from the motor to push into the water/coolant passages , i,ve got a geo tracker that does it too . it will eventually do REAL bad things to your motor if you don,t fix it , had some people say "try block sealer before going thru the expense of having head gasket(s) done

Jun 22, 2012 | Cars & Trucks

1 Answer

Need to change coolant recovery tank can a anyone do it


Yes you can do it yourself

Degas Bottle Removal
  1. Drain radiator (8005) until engine coolant is out of degas bottle. Disconnect radiator overflow hose (8075) and engine coolant vent hose at degas bottle.
  1. Remove power steering oil reservoir retaining screws and position power steering oil reservoir (3A697) out of the way.
  1. Remove degas bottle return hose and clamp. Remove degas bottle retainers and remove degas bottle.
Installation
  1. Position degas bottle in vehicle and install retaining screw and nut. Tighten retaining bolt and nut to 9-12 Nm (80-106 lb-in).
  1. Connect degas bottle hose and clamp to degas bottle.
  1. Position power steering oil reservoir onto degas bottle and install retaining screws securely.
  1. Connect radiator overflow hose and engine coolant vent hose to degas bottle.
  1. Fill and bleed engine cooling system as described. Check for coolant leaks and proper engine coolant level after engine reaches normal operating temperature.


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    Item Part Number Description 1 8100 Radiator Cap 2 - Nut (1 Req'd) 3 - Bolt and Retainer (1 Req'd) 4 - Nut (1 Req'd) 5 - Bolt (1 Req'd) 6 - Coolant Recovery Hose 7 - Coolant Return Hose 8 - Coolant Recovery Hose 9 8A808 Degas Bottle A - Tighten to 9-12 Nm (80-106 Lb-In)
Hope this helps.

Zeppelinx12

Mar 08, 2011 | 1999 Ford Taurus

1 Answer

I HAVE A HONDA CIVIC 98 THE COOLANT KEEP GOING INTO THE RESERVE BOTTLE AND OVERFLOWING I HAVE TO KEEP TOPPING UP EVERY THREE TO FOUR DAYS.


The cooling system is overpressurized and is lifting the radiator cap off of its seat at about 14 psi. This will push coolant into the overflow bottle. the most likely reason the system is overpressurized is that combustion gases are leaking past a blown cylinder head gasket into the cooling system. To verify this, you can use a Lisle 75500 combustion gas leak detector kit. it is inexpensive and will show if combustion gases are leaking into the coolant.

Feb 10, 2011 | Honda Civic Cars & Trucks

2 Answers

Heat is not working - coolant was low so filled it.... problem here... heard something about an air pocket


If you dont have an external coolant leak anywhere under your hood that has shown up on your driveway it could be the intake manifold or the headgasket leaking. Also check the thermostate to solve the heat issue.

Jan 05, 2011 | 1998 Pontiac Bonneville

1 Answer

Slight overheating in traffic,goes up 2 notches over half way mark.coolant pushed out of overflow bottle,engine heats too long before the fans chip in.temperature stays at halfway mark on...


These vehicles, when equipped with the 3.1L engine are very prone to head gasket failure. A local garage should be able to preform a block check to tell wether combustion gasses are entering the coolant. Because you said the coolant pushed out the overflow this is definately where i would start. The normal operation of that vehicle is for the fans to turn on around 106 degrees celcius. If you can, take a temperature reading of the coolant to ensure they are coming on at the right temp. Other possibilities are an inefficient radiator, coolant temp switch/sensor causing inproper fan on temperature,

Jun 06, 2010 | 1998 Chevrolet Malibu

2 Answers

Its over heats and i put water every one or two days today i notice that a white clear container by the water hose is empty and greasy


Look at the oil on the dipstick. If its milky you have a head gasket issue. Also if you can make it to a smog machine they can sniff the coolant fumes to see if gas is in the coolant. Head Gasket again. Any repair shop has a chemical that can test for gas in the coolant also.

The theory here is if your losing water and none is leaking on the ground its got to be going into the cylinder and getting pushed out the exhaust pipe.

Now if its just overheating you may have a stuck thermostat or clogged radiator or a coolang fan that dlesnt turn on when commanded by the computer.Also if its just overheating and the water lost is going on the ground somewhere then you may not have a head gasket issue.

I just did a head gasket on a Honda because as the engine was warming up the overfill bottle would fill up and overflow. The combustion pressure was leaking into the coolant and pushing the coolant out.

Jul 14, 2009 | 1998 Honda Civic

2 Answers

Change hose radiator


your radiator is probably bad small leak but itll do its deal of leak...

Jul 10, 2009 | 1997 Infiniti.5 J30

1 Answer

Radiator over flow bottle fills with coolant.


There's nothing wrong with the overflow bottle filling with coolant, that's what it's there for. As long as it doesn't pour out the top it's fine.

Jun 18, 2009 | 1995 Toyota 4Runner

2 Answers

Over flow bottle bubbles when I stop running it.


If the gauges read normal and the fans are working properly and the vehicle dosen't overheat. I would suggest that it's the normal operation of the vehicle.

The overflow bottle is there because when the vehicle get's hot it draws in the extra coolant from the overflow. When the engine cools down it will push the extra coolant back into the overflow, that's what the radiator cap is for, it's not just a cover for the radiator. At a certian pressure the radiator cap will release the coolant to the overflow bottle. Otherwise the super heated coolant would have nowhere to expand to and blow apart hoses and such.

One other thing to check is if the coolant is a proper mix of antifreeze and water. You can buy a coolant check tool from any auto store, they don't cost too much.

Tip: Use distilled water instead of tap water (or use pre-mixed antifreeze). In some cars regular tap water will speed up corrosion in the cooling system.

Jun 07, 2008 | 1997 Plymouth Breeze

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