New answers tagged

0

This can be caused by being low on refrigerant. Before the refrigerant enters the expansion valve next to the evaporator, the refrigerant needs to be in liquid form so that it can expand and perform its cooling function. There needs to be a continuous supply of liquid from the condenser to ensure that refrigerant in gas form does not reach the evaporator. ...


1

It sounds from the comments that you have eliminated belt slip as the culprit due to the sound of the squeak (and lack of squeal). If you can pinpoint the squeaking to one specific pulley, it is likely the bearings for that pulley are on their last legs. Bearings perform better under heavier loads, which could explain why the squeak goes away at higher ...


6

This particular bottle is knows as a degas bottle. The reason it has a strange shape is two fold. First, the bottle needs to fit somewhere and the shape helps that. Second and more important is that these degas bottles hold pressure. The shape reinforces the bottle so that it does not explode. In cooling systems with degas bottles the coolant does not ...


3

What is engine coolant? Engine coolant is a water and antifreeze solution. Because water has good properties as a coolant, antifreeze is used in internal combustion engines and other heat transfer applications, such as HVAC chillers and solar water heaters. The purpose of antifreeze is to prevent a rigid enclosure from bursting due to expansion when ...


4

I can see a few reasons to do this: The weather in some places will be so cold that even with the thermostat fully closed the cooling system isn't able to warm the engine up to operating temperatures. Inhibiting air flow through the radiator will reduce the amount of heat rejected to the surroundings, allowing the engine to get up to temperature. The cold ...


0

Engine coolant can leave the cooling system by different ways: Through a damaged hose. Through a damaged radiator or reservoir. Through a damaged head or head gasket. In this case, white smoke (which is just steam) is coming out of the exhaust. This is an Audi special: Through a damaged / worn-out coolant reservoir cap. The cap has a sealing which gets ...


1

I've worked at automotive dealerships for over 30 years. Bearings are made of soft metals such as copper and babbitt so that they will not damage crank journals if contact is made. In earlier days, having coolant in the oil was an inconvenience. You may want to run a few quarts of ATF through an engine, then change the oil twice, in quick succession. Over ...


1

You get less cooling. If the radiator is only 1/2 way full you have water in contact with cooling fins for 1/2 the time and 1/2 the cooling. The fluid is pumped from bottom so it will continue to flow. Eventually the water is hot enough that the engine turns it to steam. Once you empty the radiator then zero cooling as nothing is pumping.


1

Water flow will stop and the heat will not be able to be transferred out of the engine block. Engines cooling systems are very intricate and feature "pockets" depending on how much cooling is needed for a given area. A lack of coolant means that the system will not be able to be pressurized by the pump and the coolant will not flow. Disadvantages: ...


7

I do not understand why the coolant system needs a bleed screw at all Because air pockets. Filling up coolant doesn't necessitate that the entire system will be filled with coolant. There are parts of your cooling system that will trap air when it is refilled. The bleed screw is a means to expel the trapped air from the system. I repeatedly fill ...


4

Simple And Technical Definition Of Coolant From a technician's standpoint "engine coolant" would be referring to the 50/50 mix of ethylene/polypropylene glycol and water. From an engineers standpoint engine coolant would TECHNICALLY be anything that assists the system in the cooling process. So, in this case you could refer to the fans, oil, and Anti-freeze ...


2

I completely forgot about the draining part, but have no time left. So, here about he antifreeze part. May be, I'll write more later It may work, but is not recommended. Freezing point Antifreeze freezes at -15°C. To prevent antifreeze from freezing, add some water, because water is antifreeze for antifreeze. OK, I had some fun... Seriously, here a ...


0

head gasket is when water is in oil which is not that expensive if the engine does not otherheat . If you drive your car and water temperature doesn't go over 100 degrees then your headgasket is ok .And this mean you have these 2 problems Oil cooler Crack in the Block If is oil cooler it's easy to change and after you need to clean your water cooling ...


-1

If the pressure test is fine and ur head gasket is not leaking try and bypass the heater radiator by joining the pipes then bleed the system and get out all the air bubbles and add antifreeze.


0

Yes, it is possible for the coolant to leave through the exhaust. You should get a compression leak-down test done.



Top 50 recent answers are included