Motor Vehicle Maintenance and Repair Stack Exchange
Motor Vehicle Maintenance and Repair Stack Exchange

Questions tagged [cooling-system]

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).

Cooling System Diagram

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429 questions
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Do mobile air conditioners exist for cars?

Even if my home has no integrated air conditioner, I can add one in my room by buying a mobile air conditioner. But if my car does not have any air conditioner, can I create cool air with an equivalent device, like in a cigarette lighter?
user55307
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Blocked water flow in engine?

My dad has a 1993 Subaru Legacy L 2.2L (no turbo) with a perplexing cooling problem. It overheats, and there doesn't appear to be flow through the cooling system. The upper radiator hose is extremely hot, the lower radiator hose is cold. The…
Chuck
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Does my mother's car have a thermostat problem?

Today, I was driving my mum's car, a Citroen C3 1.4 HDi from 2004, and I noticed that the coolant temperature was rising very slowly. Just as a reference, this is what the dashboard looked like (picture from different car, but for my purposes here…
Ben
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Washing coolant system with dish soap to remove oil residue

Someone mentioned it is a good idea to wash the coolant system with dish soap to remove residue oil. I was wondering if that is true or can it have any side effects?
amphibient
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Coolant spillover tank boiling but engine not overheating

After driving some time, is it normal that the plastic spillover coolant tank, usually attached to the fan housing, that takes boiling overflow, get so hot that you get bubbles boiling out of it even though the engine itself, according to the…
amphibient
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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?
am6sigma
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Are there any disadvantages to using a “Radiator Stop Leak” product?

I have had a slow leak form the coolant system for a few months, if I drive the car every day I have to top up every few weeks. The car has 200K on the clock and is a VW Passat TDI, I only drive less then 5K most years, I brought the car a few…
Ian Ringrose
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Is it bad to let a car sit for a few weeks with an empty cooling system?

The cooling system in my car is full of rust. It's quite corroded. I have drained and flushed the system but need to wait for some parts to be delivered in 2 - 3 weeks. The system is now empty of fluid and I am worried about oxidisation. Should I be…
MeltingDog
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Lot of oil in radiator

I want to know what the problem can be. I have a 2000 Land Cruser 5 cylinder. I had a small oil leak and that was fixed. Saturday it needed oil and I filled it up. Saturday afternoon when I parked the car I noticed that there was oil running…
Wilgie Swart
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2001 Saab radiator end tank has split open (6" SPLIT)

I had an end tank split open on a trip last fall. I had moderate temperatures going up long hills and replaced it. 10 months later, the new radiator did almost the same thing in cooler weather during an in-town commute. I bench-tested the electric…
bob sibert
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Do cowl hoods actually help with engine cooling?

I've read that cowl hoods used to be the method for air induction for older vehicles with carburetors and that the only purpose they serve for vehicles with fuel injection is for looks. However, I hear quite a few people (especially Cherokee owners)…
Jerreck
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Opel Astra hatchback is taking too much water and the water bottle is boiling in a short time drive or I should add water while its runing

My car its Opel Astra hatchback. It is taking too much water and the water bottle is boiling after a short distance. What I'm suppose to do?
Seh Garlic
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Throttling valve speed in a refrigeration cycle

I'm trying to understand the general refrigeration cycle which includes a throttling valve for the freon that is controlled by a stepper motor which is done by a temperature control. I was wondering does this stepper motor's velocity is constant or…
Lose' CKi
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Cooling System Cold Radiator

My 2004 Buick Lesabre has a cold radiator and the reserve tank is cold also. The top and bottom hose are warm. There is good heat inside. and the temperature gauge reads normal. I don't see any leaks and the water pump was replaced two years ago. To…
JIM
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How do you clean out blue devil (sodium silicate/liquid glass) out of your cooling system?

I poured blue devil engine sealant into my engine as a quick fix for my head gasket problem. It's made the issues worse now there is what looks to be white rock salt in my radiator and heater core and in the rest of the cooling system. What is the…
yre
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