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Water released from radiator when cap is removed

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As long as it wasn't hot when you removed it then its either and/or your thermostat or water pump or a stopped up radiator. I would start w/ the thermostat.

Posted on Dec 16, 2014

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How do you know if the water pump failed?


If the bearing failed, it will howl or be noisy. If the pump seal failed, it will be leaking coolant from behind the pulley- through the "weep" hole at the bottom of the pump. If the impellers on the pump that push water through are worn down, it won't leak or be noisy, but your coolant circulation will be impaired, and maybe critically impaired if worn down severely - some pumps use plastic impellers that wear quicker than metal ones. One way to check is with radiator cap off the warm engine (so the thermostat is open and coolant will flow from engine through the top hose into the radiator) and look inside the radiator to see if coolant is flowing in through the top hose. If unsure, squeeze the top hose as tight as you can to stop flow through hose, then release. You may feel the surge of coolant behind your hand as you release hose and you should see the coolant in the radiator moving. If still unsure, have a tech or mechanic check for coolant circulation.
Be very careful opening radiator cap on a warm engine. Turn engine off first. You may want to use a heavy rag on top of cap. Turn cap to first release and wait until any steam or pressure is gone. If coolant is hot it may scald you, and it may be under enough pressure that turning cap to first release will cause hot coolant to start coming out the radiator filler neck where cap sits. When pressure is gone go ahead and remove cap (turn some more to second release-then remove cap). With cap off, start engine and check circulation.
Good luck.

May 31, 2013 | Cars & Trucks

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How to know when there is enough antifreeze in radiator


Hello there and welcome to fixya
Checking your radiator fluid:
antifreeze2.pngEvery modern vehicle has a Radiator fluid overflow compartment that is translucent so you can see where the coolant level is without removing the cap. On the side of the compartment there is a full line and an add line. the coolant should be between the two lines. If it's below the add level add 50% water/coolant to the full level.
The green line is the full line, the red line is the add line in the picture.
If you don't have antifreeze but you need fluid, add distilled water,not ordinary tap water, so mineral deposits won't build in the radiator and cause corrosion or blockage. However, you should keep the correct ratio of water and coolant to prevent corrosion and for the highest level of overheat or freeze protection.
To check the fluid IN your radiator
radcap.png you will need to remove the radiator cap. DO NOT remove the radiator cap while the engine is hot. The contents are under pressure and many people have gotten severe burns by removing the radiator cap when it is too hot.
Notice the word "caution" on the cap in the picture.
It goes on to say the contents are under pressure.
IF you have no choice, but to remove the cap when hot, use a towel and remove it slowly to release pressure before you get the cap off.
The fluid in the radiator should be at the top of the radiator.

Make sure you keep 50% water/coolant mixture in the radiator. Some people put more antifreeze in during the winter, but never put more than 70% coolant. It will reduce it's ability to carry heat away from the engine and prevent corrosion.



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Dec 23, 2011 | Oldsmobile Cars & Trucks

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Keep looseing water out of radiator into resivior no water coming from exhaust no water in the oil cannot see a water leak only water comic from head of resivior it's a Mitsubishi l200 4 life+ 55reg


Most radiator start draining water if there is microscopic leaks or punctures. The system is a sealed unit and is not supposed to drain unless there is huge pressure within due to heating that can release the pressure cap on the radiator to release water to the overflow tank.
So the radiator must be filled and allowed to stand and if there is loss after a day or after the engine is running for sometime , you must check the pressure cap or else there is fault on the radiator ASSUMING that the engine is working normal- timing and tuning in correct condition.

Aug 22, 2011 | Mitsubishi Pickup Cars & Trucks

1 Answer

How do you replace a thermostat


WARNING: SCALDING HOT COOLANT, WATER OR STEAM
NEVER remove the pressure relief cap under any conditions while the engine is operating. Failure to follow these instruction could result in DAMAGE to the
cooling system or engine AND/OR personal injury. To avoid having scalding hot coolant or steam blow out of the cooling system or reservoir, use extreme care when removing the pressure relief cap from a hot cooling system or reservoir.
  1. Wait until the engine has cooled.
  2. Wrap a thick cloth around the pressure relief cap and turn it slowly (until the pressure begins to release.
  3. Step back while the pressure is released from the cooling system.
  4. When you are certain all the pressure has been released, (still with a cloth) turn and remove pressure relief cap .
REMOVAL

  1. Drain the engine cooling system so that the engine coolant level is below the water thermostat (8575).
  2. Raise vehicle on hoist. See General Information.
  3. Disconnect the lower radiator hose (8286) and degas bottle hose from the water inlet connection.
  4. Remove the two water inlet connection retaining bolts. Remove the water inlet connection.
  5. Remove the O-ring seal and water thermostat from the water thermostat housing. Inspect O-ring for damage and replace if necessary.
  6. If required, remove water bypass hose from water thermostat housing and remove water thermostat housing retaining bolts, water thermostat housing and O-ring from oil filter adapter (6881). Inspect O-ring for damage and replace if necessary.
INSTALLATION
  1. Install the water thermostat, O-rings, water thermostat housing (if removed) and water inlet connection as illustrated.
  2. Install and alternately tighten the retaining bolts. Tighten bolts to 20-30 Nm (15-22 ft. lbs.).
  3. If removed, connect the water bypass hose to the water thermostat housing.
  4. Connect the lower radiator hose and degas bottle hose to the water inlet connection.
  5. Lower vehicle.
  6. Fill the coolant with Ford Premium Cooling System Fluid E2FZ-19549-AA or-B (in Oregon, F5FZ-19549-CC, in Canada, Motorcraft CXC-8-B) or equivalent that meets Ford specification ESE-M97B44-A in a 50/50 mixture with water.
  7. Start the engine and check all hoses and connections for leaks. Allow the engine to warm up so that the water thermostat opens.
  8. Stop the engine. Top off degas bottle as required to maintain minimum cold fill level.

Jan 10, 2011 | 1997 Lincoln Continental

1 Answer

How to change water pump on 1999 alero 2.4 liter twin cam


REPLACE WATER PUMP ON A 1999 OLDSMOBILE ALERO. FIRST YOU HAVE TO DRAIN COOLANT SYSTEM IN A LARGE DRAIN. RADIATOR DRAIN PLUG SHOULD BE ON THE BOTTOM ON PASSENGER SIDE. THEN RAISE THE VECHICLE SUPPORT VECHICLE WITH JACKSTANDS. REMOVE THE EXHAUST MANIFOLD FROM THE ENGINE. CAUTION DO NOT ROTATE THE FLEX COUPLING ON THE FRONT EXHAUST PIPE MORE THAN 4 DEGREE OR DAMAGE TO THE FLEX COUPLING MAY OCCUR. REMOVE THE THERMOSTAT AND THE COOLANT INLET PIPE FROM THE WATER PUMP HOUSING AND SEPARATE THE ASSEMBLY FROM THE ENGINE. LOWER THE VECHICLE REMOVE THE BRAKE BOOSTER VACUUM HOSE FROM THE CAMSHAFT HOUSING. REMOVE THE FRONT TIMING CHAIN COVER AND THE TIMING CHAIN TENSIONER FROM THE ENGINE. CAUTION THE TIMING CHAIN TENSIONER MUST BE REMOVED TO UNLOAD CHAIN TENSION BEFORE REMOVING THE WATER PUMP FROM THE HOUSING OTHERWISE THE WATER PUMP WILL BECOME JAMMED IN THE TIMING CHAIN HOUSING. REMOVE THE HEATER OUTLET PIPE FROM THE WATER PUMP COVER. REMOVE THE WATER PUMP COVER BOLTS FROM THE ENGINE BLOCK AND THE WATER PUMP. REMOVE WATER PUMP RETAINING NUTS AND SEPARATE THE WATER PUMP FROM THE TIMING CHAIN HOUSING. CLEAN THE SEALING SURFACES OF ALL GASKET MATERIAL ON THE WATER PUMP, WATER PUMP COVER AND THE TIMING CHAIN HOUSING. WIPE THE MATING SURFACES WITH A RAG SATURATED LACQUER THINNER OR ACETONE. YOU CAN BUY THESE CHEMICAL AT LOWES OR WALMART DEPARTMENT WHERE THEY SELL PAINTS. FIRST INSTALL THE WATER PUMP COVER AND GASKET TO THE WATER PUMP ON THE BENCH BUT LEAVE THE BOLTS FINGER TIGHT. APPLY A THIN LAYER OF RTV SEALANT TO BOTH SIDES OF THE NEW GASKET AND INSTALL THE GASKET ON THE WATER PUMP. WAIT FOR RTV SEALANT SET UP DRY FIRST. POSITION WATER PUMP AND WATER PUMP COVER ASSEMBLY INTO TIMING CHAIN HOUSING ENGAGING THE WATER PUMP SPROCKET IN THE TIMING CHAIN, AND INSTALL THE NUTS FINGER TIGHT. USE CAUTION TO ENSURE THAT THE GASKET DOESNT SLIP OUT OF POSITION. LEAVE THE NUTS LOOSE TO ALLOW REPOSITIONING WHEN THE BLOCK BOLTS ARE INSTALLED IN THE NEXT STEP. INSTALL THE WATER PUMP COVER TO ENGINE BLOCK BOLTS AND TIGHTEN THEM BY HAND. LUBRICATE THE O - RING ON THE HEATER OUTLET PIPE WITH COOLANT AND INSTALL IT INTO THE WATER PUMP COVER. HAND TIGHTEN THE BOLTS. NOW THAT THE ENTIRE WATER PUMP HOUSING ASSEMBLY IS INSTALLED AND IS FITTED AGAINST THE ENGINE BLOCK. TIGHTEN BOLTS CRISS CROSS SEQUENCE TO INSURE PROPER SEAL TORQUE WATER PUMP TO TIMING CHAIN HOUSING NUTS TO 19 FT LBS .NOW TORQUE WATER PUMP COVER TO WATER PUMP HOUSING BOLTS TO 124 INCH POUNDS. TORQUE WATER PUMP COVER TO ENGINE BLOCK BOLTS 19 FT LBS. TORQUE 124 INCH POUNDS THE RADIATOR OUTLET PIPE TO WATER PUMP HOUSING. INSTALL THE TIMING CHAIN TENSIONER AND COVER. INSTALL THE EXHAUST MANIFOLD. INSTALL THE EXHAUST PIPE TO THE EXHAUST MANIFOLD. WHEN ALL IS DONE. START POURING COOLANT IN THE RADIATOR OR COOLANT OVER FLOW JUG.CHECK FOR LEAKS. IF IS GOOD KEEP ADDING COOLANT TO RADIATOR OR OVER FLOW RESERVOIR UNTIL COOLANT LEVEL STOP DROPPING. NOW START ENGINE. WATCH THE COOLANT LEVEL WHEN START DROPPING ADD MORE COOLANT IN RADIATOR OR OVERFLOW JUG. WHEN COOLANT STOP DROPPING INSTALL RADIATOR CAP OR OVERFLOW JUG CAP. LET ENGINE IDLE UNTIL THERMOSTAT OPENS WATCH TEMPERATURE GAUGE WHEN TEMPERATURE GAUGE RISING TO OVERHEATING. TURN OFF ENGINE WAIT A WHILE TAKE A LARGE RAG SLOWLY OPEN RADIATOR CAP A LITTLE TO RELEASE PRESSURE. WHEN PRESSURE RELEASE REMOVE RADIATOR CAP ADD MORE COOLANT. START ENGINE LET IDLE WATCH TEMP GAUGE. TEMP GAUGE START RISING AGAIN TURN OFF ENGINE LET IT SET A WHILE ADD MORE COOLANT. TO RADIATOR. WHEN ENGINE TEMPERATURE GAUGE STOP RISING AND THERMOSTAT OPENS YOUR COOLANT SYSTEM AIR IS BLED OUT. JUST LET VECHICLE SET A LITTLE CHECK COOLANT LEVEL MAKE ITS CORRECT BEFORE START DRIVING VECHICLE. IF YOU TAKE VECHICLE FOR TEST SPIN TAKE LARGE RAG AND PLENTY COOLANT WITH YOU.IF ENGINE START OVERHEATING WHILE DRIVING PULL OFF ROAD SAFELY WAIT 20 TO 30 MINUTES. USE LARGE RAG SLOWLY OPEN CAP A LITTLE RELEASE PRESSURE. THEN REMOVE RADIATOR CAP ADD MORE COOLANT IF NEEDED. HOPE THIS HELP.

Dec 10, 2010 | 1999 Oldsmobile Alero

1 Answer

1990 Toyota celica 1.6 overheating when it runs for about 6 miles I changed water pump and thermostat it's not blowing any water out of tail pipe and no water in oil what's should I do


Start vechile, let it warm up, turn on heater, is there heat from the heater?
No? You need to bleed the system better. Jack the front of the car up, remove radiator cap, while throttle is increased add more coolant, then with throttle still increased put radiator cap back on and release throttle. Is there now heat?

Aug 23, 2010 | 1990 Toyota Celica

1 Answer

I checked my coolant today nothing on the dipstick where did it go


Assuming that you check your cool and not your oil because you said dipstick. You could have a leaky water pump or hose but if you think you don't see anything leaking. Check your oil to see if cool is mixed in with, you might have a blown head gasket. Cool and could be going up the exhaust, a blown head gasket can also pressurize the cooling system forcing water of through the radiator cap. You can test for this by removing the radiator cap when it is cold replace the radiator cap, start the engine and rev it for a few seconds, turn the engine off and remove radiator cap again if you hear pressure releasing you might have a blown head gasket. Good luck.

Jun 20, 2010 | 2008 Honda GL 1800 Gold wing Deluxe

1 Answer

Changing antifreeze in a 2001 GMC sonoma


you can remove the lower radiator hose on the bottom of the radiator. **remember to let the vehicle cool before working on**, as coolant burns are very serious and difficult to remove quickly with water. make sure that you collect the old coolant, it will need to be disposed of properly [not into the ground] and take a water hose and place it inside the top of the radiator to flush the system . once the system appears to run clean of all coolant , replace the lower hose and refill as desired. once full, crank the vehicle with the radiator cap off and continue to fill. this will allow the water to flow and release any air pockets that may be in the system. once full and constant flow is assumed, replace the radiator cap .

Nov 11, 2009 | 2001 GMC Sonoma Extended Cab

2 Answers

Where is drain plug for 1998 dakota 4x4 i need to drain radiator &what is the turning thing on the lower drivers side of radiator 4


1998 dakota 4x4
You can remove the drain plug in the bottom on the radiator.
You can remove the lower radiator hose. Since the vehicle is 10 years old you may want to inspect the hoses for replacement anyway.

) Make sure the vehicle is cool.
) Slightly loosen the radiator cap to release any pressure.
) Re-tighten the radiator cap.
) Place a suitable container under the drain point.
) open the drain.
) Re-loosen the radiator cap again.
) Allow to drain.
) REPLACE THE DRAIN PLUG.
* At this point the radiator can be fill with water and a radiator cleaning agent- run the engine - allow to warm up.
* Re-drain the radiator - .
) REPLACE THE DRAIN PLUG.
) Refill the radiator with water/anti-freeze.
) Dispose of waste fluid according to the local regulations. Some city dumps will accept it. Some parts stores may accept it. Do not pour down the drain or dump on the ground.

Apr 19, 2009 | Dodge Dakota Cars & Trucks

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