Question about Chevrolet Venture

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Screen on dash says "coolent low".

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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  • Gus Apr 24, 2009

    Did what you said and "Bingo" thanks, nice to know people r helping with these types of problems... Sincerely" In peace..."

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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.

Posted on Apr 23, 2009

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Sounds like you have a bad level sensor .If your radiator is full and your not over heating no worry's. Or you could replace the sensor located on passenger side of radiator.

Posted on Apr 23, 2009

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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.

Posted on Nov 16, 2009

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1 Answer

I put a new thermostat in my 07 still running hot


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I changed the water pump and belt at the same time 6 months ago.., now, then i got" fill radiator" on computer screen on dash... when i take the radiator cap off of engine to check, it starts to overfill...


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1996 Buick Regal Sport - Leaking Plastic Elbow


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.
STEPS:
-REMOVE BELT
-DISCONNECT BATTERY
-DRAIN ANTIFREEZ AND DISCARD
-REMOVE ALTERNATOR
-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.
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-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 .

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