Question about 2006 Mercury Mountaineer

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Coolant leak. doesn't appear to be radiator. could possibly be tube from overflow tank

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  • Charles Osborn May 11, 2010

    does it have a guage or idiot light? antifreez comming out of overflow tube is a sign of overheating.

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Check that the radiator cap WELL THIS IS BECAUSE THIS IS A BOARD THAT IS SPREADING AND IS NOT GOOD WHEN YOU VOTE PRESSURE SYSTEM IS THE WATER TANK. THANKS

Posted on Feb 02, 2010

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Posted on Jan 02, 2017

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2 Answers

All my coolant keeps running out thedrain hose what could be wrong....


It could be a bad radiator cap. If the cap isn't sealing or releasing correctly it can cause coolant to siphon excessively out of the overflow tube. It is also possible that the discharge from the overflow tube is normal and coolant is being consumed by engine overheating, a leaking head gasket or a coolant system leak elsewhere.

Nov 20, 2014 | Cars & Trucks

1 Answer

Leaking coolant after radiator replacement


If you are talking about the reservoir that hose is the overflow hose.
Its possible the shop did not release all of the air pockets from the system and some coolant came out with the air bubbles.
The tank should be about half full hot and cold.

Jul 18, 2013 | 1998 Chrysler Concorde

1 Answer

My Pontiac is leaking antifreeze from the breathing hose on the coolant tank, please help


I'm not completely clear on what you mean, but here are some things to check.
1. Check the hose from the radiator neck to the overflow tank for cracks or leaks. If it's leaking the tubing can be purchased at an auto parts store. It's very inexpensive.

2. If it's leaking a lot into the over fill tank this could be an indication that your radiator cap is leaking at the seal, allowing coolant to bypass the spring on the cap and through the hose into the coolant overflow tank. Replace the radiator cap, these are about $10.

Nov 23, 2012 | Cars & Trucks

1 Answer

Coolant leak


Not sure I understand the question, but there should be a small hose from the actual radiator to the overflow tank. Then a small hose from the overflow tank to allow extra coolant to exit.

Jul 10, 2012 | 2001 Oldsmobile Aurora

1 Answer

Need to find the source of the excessive amounts of coolant leaking from the front-passenger side of the radiator/fan area. I found a tube that is connected on one end but not the other that I am currently...


It's probably the radiator overflow tank hose. It is supposed to be connected the the coolant overflow tank and also the other end at the radiator, next to the pressure cap. It allows excess coolant to escape the radiator if necessary and also to **** in coolant if needed.

Sep 15, 2011 | 2000 Jeep Grand Cherokee

1 Answer

I have a 2001 ford Escape and it seems to drain its coolant every fortnight, the engine doesn't heat up or at least the gauge doesn't it having done so. but i have to keep topping up the coolant...


You must find out where the coolant is dripping from, place a piece of card board under the cars engine area and check next day, then figure where, that will lead you to find where the leak is coming from. Possible places would be the coolant cap on the overflow recovery tank, there is also a hose attached to this. You could also have a leak in the radiator.

Jul 08, 2011 | 2001 Ford Escape

2 Answers

Looking for the fill plug on a 200 dodge darango 4 wheel drive front punkin all i see is a vent pipe


COOLANT-ADDING ADDITIONAL
Do not remove radiator cap to add coolant to system. When adding coolant to maintain correct level, do so at coolant reserve/overflow tank. Use a 50/50 mixture of ethylene glycol antifreeze containing Alugard 340-2 y and low mineral content water.
Remove radiator cap only for testing or when refilling system after service. Removing cap unnecessarily can cause loss of coolant and allow air to enter system, which produces corrosion.

COOLANT LEVEL CHECK
The cooling system is closed and designed to maintain coolant level to top of radiator.
WARNING: DO NOT OPEN RADIATOR DRAINCOCK WITH ENGINE RUNNING OR WHILE ENGINE IS HOT AND COOLING SYSTEM IS UNDER PRESSURE.
Remove radiator cap. The coolant level should be to top of radiator. If not, and if coolant level in coolant recovery bottle is at ADD mark, check for:
  • An air leak in coolant reserve/overflow tank or its hose
  • An air leak in radiator filler neck
  • Leak in pressure cap seal to radiator filler neck
TRANSMISSION and OIL LEVEL CHECK TUBES
pctech1_27.jpg

Mar 04, 2011 | 2000 Dodge Durango

2 Answers

I own a 1985 300zx Turbo?.I like to know why my


Your overflow tank works on suction to return coolant to the radiator. Check the line and nipple ends for any cracking (cracking on the plastic radiator nippl is very commom). The radiator nipple is not under high prrssure like the fluid under the cap (inside the coolant system). It's on the otherside of the cap and will never "stream or gush" coolant (uless you are over heating badly). As the coolant in the radiator cools it creates a vacuum and draws coolant back from the overflow throgh a small hose. You might not see any leaks as coolant heats up and travels to the overflow. It might be a very small leak and you are usaully driving around and drying up before you see it. Even with a very small crack it will only draw in air and not liquid (as liquid is way heavier than air). Also, I've seen where people have taken out (or fallen out) the tube attached to the overflow cap that goes down deep into the overflow tank. That tube should be long enough to almost reach the bottom of the tank. It's hard to know if something is missing if you do not know it was suppose to be there in th first place but it needs to be there.

Jul 04, 2010 | 1985 Nissan 300ZX

2 Answers

Leaking antifreeze when engine heats up but cant find leak


Your engine is constantly warming and cooling. Your radiator cap has a set pressure release. As the pressure builds it allows coolant to flow out of the radiator into the makeup tank. As the engine cools it sucks coolant out of the makeup tank back into the radiator. If it overheats a lot then the makeup tank will overflow out of the overflow tube and it usually drips out under the car. If your radiator cap is bad or weak it can let coolant out when it shouldn't. This isn't a frequent problem but it can be a cause. The most likely cause is your thermostat is bad. The thermostat is closed when you start your engine and keeps the coolant inside of the block so it can't circulate through the radiator and cool until your engine is warmed up then at a set temperature (depending on thermostat), usually 195 degrees it starts to open and allow the coolant to circulate and cool. The thermostats can get bad and stick partial open or all the way closed and open. Yours is probably not functioning right and causing your makeup tank to overflow. When engine is cool look at makeup tank and you will see a minimum and maximum mark. Fill to maximum with coolant then start the car and let it warm up and monitor the coolant level and see if it is overflowing.

Dec 05, 2009 | 1995 Oldsmobile Cutlass Supreme

1 Answer

Coolant leak from radiator


Yes, the vehicle overflow may be that tube which should be venting into a coolant recovery tank.. If the tank is full then it could be the tank overflow...

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