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Heating AC and Engine Cooling

Heating, air conditioning (AC) and engine cooling require a radiator to transfer heat. Heating a cabin requires heat to be transferred from an engine block. Engine cooling blows the heat out of the engine. AC uses refrigerants to cool air.

2,065 Questions

How do I bleed the cooling system on a Rover 45?

To bleed the cooling system on a Rover 45, start by ensuring the engine is cool and the coolant reservoir is filled to the appropriate level. Then, locate the bleed screw, usually found on or near the thermostat housing, and loosen it slightly using a wrench. Start the engine and let it run until the coolant begins to flow steadily from the bleed screw without air bubbles, then tighten the screw. Finally, check the coolant level in the reservoir and top it off if necessary.

How do you replace a cabin filter on 2012 Honda Civic lx?

To replace the cabin filter on a 2012 Honda Civic LX, start by locating the filter compartment, which is usually behind the glove box. Remove the contents of the glove box, then gently squeeze the sides to release it and lower it. Unclip the cover of the cabin filter compartment, pull out the old filter, and insert the new filter in the correct orientation (often indicated by arrows). Finally, reassemble the glove box and ensure everything is secured.

Where is fuse for Mercedes vito heater?

The fuse for the heater in a Mercedes Vito is typically located in the fuse box. In most models, this fuse box can be found under the dashboard on the driver's side or in the engine compartment. You can identify the specific fuse for the heater by referring to the owner's manual, which provides a diagram and list of fuse functions. Always ensure the vehicle is turned off before checking or replacing any fuses.

How cold shuld a 1994 acura integra ac blow r134a?

A 1994 Acura Integra using R134a refrigerant should ideally blow air at temperatures between 38°F to 45°F (3°C to 7°C) from the vents when the air conditioning system is functioning properly. If the air temperature is significantly warmer than this range, it may indicate low refrigerant levels, a malfunctioning compressor, or other issues within the AC system. Regular maintenance and checks can help ensure optimal performance.

Where is the low-side service port on a 1995 Ford Taurus?

The low-side service port on a 1995 Ford Taurus is located on the suction side of the air conditioning system. You'll typically find it on the larger diameter aluminum line that runs from the evaporator to the compressor. It is usually situated near the firewall on the passenger side of the vehicle. Look for a valve with a blue or black cap, which is where you would connect the A/C manifold gauge set.

When ac or heat is on in Cherokee and you are at a stop your battier volts go down and when you go to drive the belt squeals?

Check the tension on the belt; a loose belt will cause the battery voltage to go down because it may be slipping on the alternator and also squeals when you accelerate because the crankshaft is turning faster than the belt.

What causes a vehicle to overheat?

no coolant or you have a bad thermostat and or bad water pump . msmaylum@aol.com Coolant could be low. Thermostat could be broken. Water pump or fan may not be working.
TURN ON YOUR HEATER; OPEN YOUR VENTS TO HELP COOL DOWN YOUR ENGINE. IF IT'S TOO SMOKEY, PULL OVER, POP THE HOOD UNTIL IT COOLS DOWN THEN OPEN HOOD ALL THE WAY. WAIT A FEW MINUTES BEFORE YOU TAKE OFF THE RADIATOR CAP, BUT WHEN YOU DO, USE LOTS OF CAUTION. STEAM IS VERY HOT AND WILL BURN YOUR FACE AND OTHER PARTS OF THE BODY. WAIT A LONG WHILE BEFORE OPENING CAP TO RADIATOR.
I had a 2002 Vauxhall Corsa which was running hot and it turned out to be the water pump which needed replacing.

Causes for an overheat: low coolant, failed water pump, plugged radiator, failed headgasket, inoperative radiator fan, stuck thermostat, missing belt, etc

What does your cool mean?

the term "your cool" means that somebody thinks that your fun to be with or do exiting/dangerous things with, or just to have a good time. to a major extent of coolness, watching paint dry wouldn't be boring with you!

P.S. I am really mad at you who asked the question. Now I really hate you. You called me a dummy. It was the question Where can you get a camera? But now you should really realise that I'm only 8 and it was going to be for my dads birthday. I guess you should really think before you say mean things like that. If your wondering that I'm 8 and I answered that question it's because I I edited the first person who wrote it. I'm Unknown Kitty. Thanks for hurting my feelings. >:(

What are the possible causes of brief high temperature readings in your automobile?

If the temperature goes up and down and the coolant level is ok your thermostat is probably sticking. Replace the thermostat and you should solve the problem.

What is a Jewish brisk?

The word I think you are looking for is a Bris. That's the Jewish Ceremony of circumcision.

Cruiser with a moldy smell you sprayed microban and used frigi -freeze in the vents the smell is still there someone suggested ozoning what is this?

Frigi-fresh is a product of BG Chemicals and is only sold through repair shops. BG makes an evaporator cleaner that is injected into the air conditioner case. The air conditioner is run to form condensation to wash the mold, fungus and bacteria out the drain. it works very good. If you do not work at a repair shop then copy this and let them read it so that they can help you.

What are signs of a bad thermostat?

Two easy ways to tell are if the motor takes too long to warm up. This means the thermostat may be stuck open. If the motor gets hot and the top hose on the radiator is not warm the thermostat may be stuck closed.

Why would you be losing water from the expansion tank on your car?

i take it you are talking bout expansion tank on a/c this is evaporation and is common on all vehicles if you are talking bout expansion tank on radiator, you have either got to much coolant in radiator,(check level when cold) or you have an air lock in the cooling system and need the system bled to remove air

What is the freezing temperature of mineral oil?

-30C(-22F) is listed as the freezing point for mineral oil. Due to viscosity (how thick the fluid is, basically), however, it's lowest useful temperature is considered to be 10C (50F).

What are the advantages and disadvantages of using a capillary tube?

Capillary tubes are used in a variety of applications including medical, thermometers, science, and technology.

Advantages of capillary tubes are:

1. They are inexpensive and simple.

2. No maintenance is required because they have no moving parts.

3. In technology, they reduce the starting torque of the motor by providing an open connection between the condenser and the evaporator

Disadvantages :

1. They cannot adjust themselves to changing flow conditions

2. They are susceptible to clogging because the bore is so narrow. A filter should be used to prevent entry of particles or moisture.

3. In technology, specially refrigerant and HVAC, flooding of the evaporator may occur and damage to the compressor may result upon start up.

How do you keep mice from eating essential wiring under a car hood?

There are many ways to keep mice from eating wiring under a car hood. You could coat the wires with tape for example.

If your car overheats only when going slow is it likely the thermostat?

The two most common things that will cause the overheating are a thermostat that is stuck in the closed position stuck and a bad radiator fan motor or sensor. Either can be checked easily. While the engine is cool, remove the radiator cap and then start the vehicle. Being careful not to get yourself or any of your clothes caught in any moving parts, look through the radiator neck opening to see if you can see water circulate after the engine warms up - the flow of the water is very noticeable. While you are watching for water to circulate, also keep an eye on the fan to see if it turns on. If you can see water circulate, the thermostat is ok - if not, replace the thermostat. If water circulates but the fan does not come on, either the fan motor or the sensor is faulty.