System which removes excess heat from liquid cooled internal combustion engine. It also helps maintain the engine temperature at a consistent level. The cooling system encompasses the radiator, water pump, thermostat, hoses, heater core, overflow reservoir, and anti-freeze (or coolant).

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1996 mazda 626 leaking coolant

My mazda 626 was leaking coolant. I replaced the radiator for there is clearly a hole on it. It worked fine for about a month. Then I see some leakage again. And this time it is around the right side ...
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68 views

Overflow tank's lid has been opened for a long time

I've just found that overflow tank's lid has been opened by itself. I dont know how long maybe four months since I bought it. Coolant level is now above the full mark. Does it cause any damage to the ...
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102 views

Why doesn't the engine coolant dry up while the engine is running?

Why can't coolant dry inside the engine during engine operation?
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3answers
337 views

The mysterious overheating honda civic

This is a tale that goes back about a year when I found my very first car. I needed it to commute back and forth to school. When I bought the car it worked great, everything I could have wanted. ...
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62 views

In the -20F temperatures last week my temperature gauge was stuck under the 1/4 mark. Heating was also affected

Now that it has warmed up, things are back to normal. Even my heat is back. I think that my thermostat was stuck, but can they get "unstuck"?
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1k views

What is Honda Coolant?

My 2000 Honda Civic 1.6 Aerodeck is getting a little low on coolant, and so needs a top-up. The question is - what do I put in? The manual rather unhelpfully says "use Honda coolant", but doesn't ...
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35 views

Does my BMW e36 320i 1992 have a Gearbox cooler

Does the BMW e36 come equipped with gearbox coolers, if not, can I install one. Thanks
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230 views

Can you drive a 1999 Dodge Ram 1500 when the heater core is bad?

I am thinking of purchasing an older Dodge Ram; the listing on craigslist says that the vehicle is in good condition but the heater core is busted. I'm willing to go without heat/AC till I get around ...
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40 views

What items are in the cooling system loop?

What items are in the cooling system loop? I know there's the Radiator, and the Block, but what else?
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264 views

Audi 06 - Replace Thermostat

My check engine light came up yesterday. Just brought it into Audi and they say I need to replace the thermostat with the note "cooling system malfunction)". They're charging $600. Is this necessary ...
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21 views

Low Pressure with New Coolant System

I recently had my head gasket, radiator, thermostat, and hoses replaced on my BMW 318i, but the water pressure is still showing there is a leak somewhere; any idea what is going on?
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21 views

When pouring in anti-freeze why does choking the hose allow it flow better

Just wondering what exactly is going on there. When I pour in antifreeze and choke the the hose the antifreeze flows a lot better through. Any idea why this is? Thanks
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Motor Oil in Coolant Reserve [duplicate]

2004 Mercedes E500 - Yes, I am sure of it. In a moment of stupidity, I added about 8oz of motor oil to the coolant reserve. I have heard nothing will happen and I've also heard it can mess up the ...
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Car is heating while Coolant Temp Sensor is normal

I bought a BMW 318i and the car heated twice so far while the coolant temperature sensor is normal. If we exclude the possibility that the sensor is malfunctioning, what problem would cause the ...
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32 views

2005 Chevy Impala Overheating

My 2005 Impala is overheating again. It had a leak in the radiator, so got new one. Now it's leaking from the metal hose pipe that's connected to the radiator and runs under the engine and around ...
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35 views

volkswagen golf ABU loosing too much coolant

I have a volkswagen golf ABU why does too much coolant overflow from behind the bolt head that holds on the outlet flange on the head?
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122 views

How does the heater core work?

How does the heater core work? What are the inputs to the system? What are the outputs of the system? What are some common ways that it can fail?
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3answers
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Drove up a curb in my '94 525i bmw and took a chunk out of the sidewalk

Immediately after going up the curb i put the car into reverse, and then park where i then turned the engine off as quickly as possible. Four of the fan's blade broke off, front right blinker popped ...
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298 views

Ford Explorer overheating

2003 ford exp xlt overheating. replaced t-stat and dumped & refilled coolant. Still over heating bad when on the highway at about 65 mph.