Question about 1994 Jeep Grand Cherokee

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If your replaced all hoses all caps and put in a new radiator and checked all sensors replaced all fluids ons have no secret over flow container hole what is wrong when your still over heating

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Your head gasket is leaking if no water leaks out but is disappearing somewhere. You can do a chemical block test or have a smog machine somewhere sniiff the fumes in the radiator for gasoline.

Posted on Aug 24, 2010

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Start looking for an internal engine problem from water pump efficiency to head gasket failure

Posted on Aug 24, 2010

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2 Answers

Need to add coolant, where is radiator cap?


No idea

No vehicle to refer to

If your adding --your best find & repair
the leak in the coolant system

You add to the system through the coolant fill cap, if you
have no radiator cap

If you follow the top radiator hose, you will see it

The big white container is a coolant tank,degas bottle,or over flow tank

That also has to have coolant & is checked when cold

Dec 03, 2014 | Cars & Trucks

1 Answer

Van is losing water but the overflows continues to stay full. No cracks in radiator and the cap where you put in the water has a hose going in but no hose on the opposite opening.


In a properly working system, the coolant expands as the coolant temp rises. The excess coolant flows into the overflow container by the hose that runs from the bottom of the overflow to the top of the radiator, under the radiator cap. When the coolant begins to cool down, it contracts,drawing fluid back into the radiator from the overflow. The water pump has a "weep" hole located near the bottom of the pump housing that will leak coolant if the pump is going bad. In some engines, the 3.0, the water pump is located under the camshaft timing belt cover, and is a BEAR to deal with. However, the coolant should be pulled into the radiator when the engine cools, so check that the hose from the top of the radiator is attached to the bottom of the overflow and that it is not blocked or pinched. Have the system pressure tested to verify that it has no leaks. Hope this helps. Dano

Jul 10, 2011 | 1992 Plymouth Voyager

1 Answer

How to change the radiator


TO CHANGE RADIATOR FIRST YOU TURN OFF RADIO FIRST TO KEEP FROM LOSING RADIO CODE.DISCONNECT NEGATIVE BATTERY CABLE.RAISE FRONT OF VECHICLE SUPPORT ON JACK STANDS.REMOVE THE LOWER SPLASH SHIELDS.NOW YOU NEED TO DRAIN THE COOLING SYSTEM.CATCH COOLANT IN A LARGE DRAIN PAN.REUSE COOLANT IF ITS FAIRLY NEW.IF COOLANT VERY OLD CHANGE IT.PUT OLD COOLANT IN SOME EMPTY CONTAINER TAKE TO A GARAGE OR WHOEVER DISPOSE IT.DONT POUR ON GROUND.HARMFUL TO THE ENVIRONMENT.MOVE THE AIR INTAKE DUCT PASSES OVER THE TOP RADIATOR HOSE.NOW WHEN ALL COOLANT DRAIN OUT.LOOSEN UPPER AND LOWER RADIATOR HOSE CLAMPS.THEN DETACH THE RADIATOR HOSES FROM THE FITTINGS.IF THEY ARE STUCK GRASP EACH HOSE NEAR THE END WITH A PAIR OF ADJUSTABLE PLIERS AND TWIST IT TO BREAK THE SEAL THEN PULL IT OFF REMOVE SMALL COOLANT SURGE LINES FROM TOP OF RADIATOR THAT GOES TO THE OVER FLOW RESERVOIR..DISCONNECT COOLING FAN ELECTRICAL CONNECTOR.THEN REMOVE THE COOLING FAN.REMOVE DISCONNECT AUTOMATIC TRANSMISSION COOLER LINES GET READY TO CATCH TRANSMISSION FLUID THEN PLUG LINES. NOW UNSCREW THE FOUR BOLTS TWO ON EACH SIDE OF THE RADIATOR THAT ATTACH RADIATOR TO THE AIR CONDITIONER CONDENSOR CAREFULLY TIP TOP OF THE RADIATOR SLIGHTLY TOWARDS THE ENGINE.REMOVE THE UPPER RADIATOR SEAL AND LIFT RADIATOR FROM THE ENGINE.NOW IS THE TIME TO REPLACE THE UPPER AND LOWER RADIATOR HOSES WITH NEW ONES SINCE ALL COOLANT REMOVE I WOULD REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP.NOW WHEN YOU GET READY TO INSTALL NEW RADIATOR USE SHEETS OF CARD BOARD PROTECT RADIATOR FINS AND CORES FROM DAMAGE WHILE SITTING RADIATOR BACK IN PLACE.ONCE YOU GET UPPER AND LOWER HOSES IN PLACE ALSO PLACE SMALL SURGE HOSES FROM THE OVER FLOW RESERVOIR TO RADIATOR NEW THERMOSTAT AND TRANSMISSION COOLER LINES ALL HOOK UP. START POURING ANTIFREEZE IN THE RADIATOR OR OVERFLOW RESERVOIR IF RADIATOR DONT HAVE RADIATOR CAP ON IT.POUR A FULL GALLON ANTIFREEZE AND A HALF MORE IF LONG AS THE COOLANT STAYS ON THE COLD LEVEL MARK ON OVERFLOW RESERVOIR DONT OVER FILL.IF YOU POUR ANTIFREEZE IN RADIATOR KEEP POURING ANTIFREEZE UNTIL LEVEL STOP DROPPING AND LEVEL OFF AT RADIATOR TOP.START ENGINE CHECK FOR LEAKS. LET ENGINE RUN UNTIL IT WARM UP TOP RADIATOR HOSE GET HOT.WATCH COOLANT LEVEL IN RADIATOR OR COOLANT OVERFLOW RESERVOIR WHEN THERMOSTAT OPENS COOLANT LEVEL WILL DROP.ONCE YOU HAVE ENOUGH COOLANT IN THE SYSTEM COOLANT LEVEL WILL STOP DROPPING.THEN YOU READY TO GO.LET ENGINE SIT A LITTLE WHILE CHECK COOLANT LEVEL AGAIN.COOLANT LEVEL IN THE OVER FLOW RESERVOIR SHOULD BE AT HOT MARK FOR HOT ENGINE AND WHEN ENGINE COLD COOLANT LEVEL SHOULD BE AT THE COLD MARK.IF POUR ANTIFREEZE IN THE RADIATOR COOLANT LEVEL SHOULD BE AT TOP OF RADIATOR BELOW PRESSURE CAP.

Oct 24, 2010 | Saturn L-Series Cars & Trucks

1 Answer

1997 Grand Cherokee Laredo, 4WD, 5.2 V8. My Jeep overheated today. When I went to open the hood I could feel steam. So I waited for it to cool before taking the radiator cap off and see no fluid in it....


Have system pressure tested when cold and full to top. Pressure test will force coolant out and you will be able to trace the leaks location. Hopefully it's a small hose leak and not a major problem like a blown head gasket or cracked head.

Aug 06, 2010 | 1997 Jeep Grand Cherokee

2 Answers

There is a part of my car that looks like a container attached with the radiator- it reads danger, do not open (Carlsonic). it used to have a green liquid in it but the liquid has finished in the...


This is the overflow bottle for the cooling system in the cars motor.On the sides will be lines that read (maybe) hot and cold.You will need to add some water to this bottle so the radiator has water in it.The green liquid is the engine coolant.If you drink it.You die.Its name,if you buy some is called,engine coolant.Hope this helps

Mar 23, 2010 | 1999 Mazda 626

1 Answer

How to replace the radiator fluid


- Make sure the engine is cold and not running.
- Drain the radiator fluid by opening the drain plug at the bottom of the radiator or for a better/faster drainage and cleaning, carefully remove the bottom radiator hose by first loosening the hose clamp.
- Open the radiator cap and water rinse/flush the radiator core via a garden water hose until you no longer see any dirty water coming out of the bottom hose (or drain plug).
- Flush the radiator over flow (plastic) container by overfilling it with your garden water hose.
- remove garden water hose, carefully refit the bottom radiator hose, tighten the bottom radaitior hose clamp, refit/tighten the radiator drain plug.
- refill the radiator with approved radiator fluid for your climate and also refill the radiator overfow tank to the indicated level..
- Refit radiator cap
- Start your engine until it warms up and check for any water or steam leaks. Refit and or replace any faulty hoses or radiator (regulator) cap!
It is not difficult and have fun!

Dec 25, 2009 | 2003 Volkswagen Beetle TDI

2 Answers

Have to put fluid in the radiator and over flow tank about three times a week but don't really see any on the ground where we park. Leak stop was put in by previous owners but doesn't seem to have helped.


the fluid may be goind out the exhaust, look foe excessive moisture out of the tail pipe, if you gotta fill it so often then its going somewhere right? may be sign of a bad head gasket, jut one more thought, are you using anti freeze or just plain water, water evaps quick, and a bad cap will let pressure escape and evaporate quickly, so you will not see a leak, good luck

Nov 28, 2009 | 1997 Oldsmobile Cutlass Supreme

1 Answer

Top radiator hose is HOT, radiator is steaming


have u replaced the radiator and hoses? Thermostat could also be stuck open. Water pump could also be your issue. with motor cool and of remove radiator cap(cap may be bad as well) top-off fluid and start car check for fluid flow with flashlight. Water pumps typically leak from what is called a weep hole when the shaft seal fails. Yours will be located under the timing cover (drivers side) running of the timing belt.
Hit me up after u have check on these.

Aug 15, 2009 | 1992 Honda Accord

2 Answers

What goes in overflow reservoirs 93 honda accord? its been empty 2 years now....


anti freeze goes in tthe over flow tank if there is no fluid in there check you radiator if it is full replace the cap it allows the fluid to transfer from the over flow to the radiator

Jul 14, 2009 | Honda Accord Cars & Trucks

1 Answer

Loosing antifreeze


air in your hoses from the flush.

To Fix:
(you'll need more anitfreeze)
turn on engine, open radiator cap.
squeeze hoses, bottom one first, to releive pressure/air in your hoses.
Notice the level dropping in the radiator cap hole.
Once you seen the fluid level drop, add more anitfeeze, directly to the hole.
Once hole is filled to the top, replace radiator cap, and drive.

Jan 11, 2009 | 2004 Kia Rio

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