Over 6 months ago I changed water pump and belt. for several months every so often, i get the dash reading of the coolent being low. While car is running and cool i take radiator cap off and immediately coolant starts to come out of radiator slowly...i always tput the radiator cap back on immediately... theres no way to directly add coolant to my van.. the overfill container is normaly full..Whats the problem.. did i do something wrong when i changed water pump and belt? what can i do?? sincerely desperate...
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Re: screen on dash says "coolent low".
Sounds like a bad thermostat. A malfunctioning thermostat will back up coolant into the overflow. BTW, are you experiencing any problems with the heat or AC? This would also be an indicator that the thermostat is faulty.
Check with your local mechanic and ask if they have a Cool-Rite machine. The Cool-Rite system works like this your car is connected to the system. The fluid exchange will pump out every drop of spent coolant into a recovery tank, While fresh new coolant is simultaneously pumped into your car. The process includes a pre-cleaner which help ensure that rust,scale and other damaging contaminants are removed with the old coolant. Do this every 2 years or 24,000 miles.
On extended life coolants, I would still suggest still doing it every 2 years to get Maximum performance out your coolant system. Because I do a tremendous amount of driving.....Only makes sense. Go to www.Run-Rite.com to learn more.
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water pump faulty, low on coolent, could be temp sensor faulty too if it reads hot all the time, even when you know its cold (like first thing in the morning) loose belt on waterpump, clogged coolent system, maybe it needs flushed.
You required to remove the front cover of the engines. You will be finding the timing belts and drive belts which is connecting the crank shaft at the bottom to A/C compressor, power steering pump coolent pump and a belt tensioner.
You have to loosen the belt tensioner and remove the belt. then you have to remove the pump. Before removing the coolent pump, you need to drain coolent, so that you can refill the same again.
Take the cap off and let any excess fluid drain into a container. Don't let it run on the ground because pets and small children find antifreeze delicious but toxic, possibly fatal. Run the engine to purge any air pockets, then after the thermostat opens and the antifreeze starts running warm, top off and close the cap. Let the engine cool down and then check the level in the reservoir. If the light doesn't go off on its own, take the vehicle to one of the auto parts retailers, and have them connect it to their code reader. They can then reset the onboard computer. If the problem persists, check your temperature sensor.
YOU NEED TO REPLACE THE BELT TENSIONER.
IF YOU BUY THE CARTER BELT TENSIONER AT ADVANCED AUTO, IT COMES WITH: A PLASTIC ELBOW WITH O RINGS, TENSIONER, PULLEY, NEW O RING WHERE THE BELT TENSIONER MATES TO THE ENGINE BLOCK AND NEW O RINGS FOR THE INLET AND OUTLET CONNECTIONS ON THE BELT TENSIONER TO THE HEATER CORE (COST $72).
IF YOU DON'T REPLACE ALL THE ABOVE O RINGS THEN YOU CAN EXPECT MORE LEAKS.
IN ORDER TO REPLACE THE PLASTIC ELBOW YOU MUST REMOVE THE BELT TENSIONER ANYWAY. IF THE BELT HAS SEVERE CRACKS REPLACE IT ALSO.
-DRAIN ANTIFREEZ AND DISCARD
-REMOVE BELT TENSIONER
-REMOVE PLASTIC ELBOW (DO NOT ALLOW BROKEN PIECES PLASTIC OR DIRT TO GET INSIDE THE ENGINE WATER CAVITIES.
-CLEAN ALL CONNECTION WHERE O RING WILL MATE.
-TO REASSEMBLE GO IN REVERS ORDER
-REFILL THE RADIATOR WITH COOLENT 50% MIX USE THE 5 YR GUARANTEE TYPE.
-MAKE SURE THE COOLENT RESERVIOR IS
FILLED TO THE HOT LEVEL MARK.
-RUN THE ENGINE UNTILE IT IT REACHES THE 1/4 % TEMP MARK ON THE TEMPERATURE GAUGE THEN TURN THE ENGINE OFF AND OPEN THE BLEED SCREW ON TOP OF THE THERMOSTAT HOUSING.
ALLOW THE AIR TO EVACUATE, YOU WILL SEE COOLENT COME OUT THEN CLOSE THE BLEED SCREW.
-BE VERY CAREFUL WHEN YOU OPEN THE RADIATOR TO REFILL TO THE TOP.
-REPEAT THIS ONE MORE TIME.
-RUN THE ENGINE AND KEEP YOUR EYE ON THE TEMPERATURE GAUGE' IF THE TEMPERATURE GOES BEYOND THE 1/2% MARK, SHUT DOWN THE ENGINE QUICKLEY AND LET THE ENGINE COOL.
THIS MAY TAKE HOURS TO COOL DOWN BUT THE COOLING SYSTEM WILL TURN FROM PRESSURIZED TO VACUUM AND DRAW COOLENT FROM THE RESERVOIR TO REFILL THE SYSTEM.
YOU WILL NOTICE THE LEVEL DROP IN THE RESERVOIR.