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I have a 1996 Jimmy and recently replaced the thermostat. I know the raditor drain plug is not too far under the coolant recovery tank, if not that, you may simply have a hole in the tank. From what I've heard, I would use caution using stop leak products, but I am far from an expert. The question is--- is it leaking or just always low on fluid. A leak in the tank is possible but another possibility is the head gasket is allowing compustion pressure to get into the cooling system and blowing it out---check to see if there are bubbles inside the tank when the engine is running ---a sure sign the latter is happening. Jeep recovery tanks often have cracks and leak where the hoses atttach.
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∙ 14y ago
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Should you believe that the little puddle of coolant under the right front of your 1994 corolla is merely overflow?
your Toyota should have an overflow bottle to retain the antifreeze during normal operations. Unless it is overfull, I would be looking for a leak.
Does using radiator stop leak cause the coolant in the overflow tank to look like sludge?
Yes, stop leak turns into a thick substance to plug any leaks, when it ends up in the overflow bottle it turns into sludge there.
You have oil in my coolant overflow?
Head Gasket leak most likely.
What if you pour coolant into the overflow and the coolant instantly pours on to the ground what could be wrong?
A leak. You need to see where it is coming from.
What does it mean when overflow tank empties itself?
It means that you have a coolant leak. You need to have the system pressure tested for leaks.
Where would coolant leak from the head gasket?
The coolant will normally leak into the oil or into the cylinder
Why would you lose coolant in the reserve bottle of a 1995 Civic even when radiator hose pipes are in perfect state?
Most commonly this is due to overheating or a blown head gasket. Overheating causes the coolant to expand, and rush into the resevoir, then overflow it. When cool, the coolant that remains will be sucked back into the engine. A blown head gasket can cause the coolant to enter the firing chambers of the engine then be blown out the tailpipe, or the compression can leak into the coolant area and push the coolant out, or allow the coolant to get into the oil pan.
Why does your 2002 avalanche leak antifreeze overnight only?
You might check your overflow tank for coolant. It might be too full
Why would coolant leak from the overflow hose bottle. you changed the water pump and the thermostat and the large hose to the top of the radiator Also the heater is not working now.?
Could be an airlock. try bleeding the system until the heaters are hot. If it keeps doing it the i would suspect cyl head gasket. Hope this helps
How do you find a coolant leak when it is not the radiator or coolant bottle on a 2002 Chevy Malibu?
Have it pressure tested, the intake gaskets have probably failed.
Why does my Honda ST1100 leak coolant?
hi make sure you have not over filled the expansion bottle as coolent will come from the overflow pipe also its worth checking the two small hoses attached to the thermostat housing unit hope this helps john
What is wrong when the coolant keeps disappearing but not visibly leaking?
First, if you only look after it has disappeared, there is no coolant left to be leaking Second, coolant will often leak only under pressure, when it expands from being hot. This often happens when the car is moving, so cannot be observed, or escapes as steam. These leaks can be from small cracks in hoses, often under the clips; from pinholes in the radiator body; from under the pressure cap if the seal is badly worn. If some coolant is already missing, the remainder will heat up faster, setting up a viscious cylcle. In vehicles with an overflow bottle, overheated water goes to the bottle, to be sucked back later by the reduced pressure as the water cools again. In extreme overheating (boiling) the coolant can overflow the bottle, so less is available for sucking back later. Also if the hose to the bottle is cracked or loose, the reduced pressure will suck in air instead of water from the bottle. This leads to a situation where the radiator is quite low (so susceptible to fast overheating) while the overflow bottle contains water, so the user thinks there is enough water and never refills it. Coolant can also leak into the engine block, but this will not "keep" happening, as quite a small amount will cause the engine to stop functioning.
