Solved: radiator

Showing posts with label radiator. Show all posts

Monday, November 21, 2011

How to replace Radiator on Audi and VW car models?

If you need dis-assembly or replacement instructions for any other auto/car part, or you want to ask question related to your car/truck jeep problem then please leave the comment with your details, so I can provide you the required instructions and solutions.

The procedure is as follows :----

Radiator

REMOVAL & INSTALLATION

CAUTION

NEVER open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.

Disconnect the negative battery cable.

Allow the engine to cool below 100°F (38°C).

Drain the coolant into a suitable container. For additional information, please refer to the following topic(s): General Information and Maintenance, Fluids and Lubricants.

On A4 & 1998-00 Passat models, remove the front bumper assembly. For additional information, please refer to the following topic(s): Body and Trim, Front Bumper.

Remove the radiator hoses from the radiator.

Disconnect the electrical connectors for the thermal fan switch and the electric cooling fan.

On models equipped with automatic transmission, if equipped, place a suitable drain pan under the fluid lines, then disconnected and plug the transmission cooling lines.

On 1990-97 Passat models:

Remove the radiator mounting fasteners.

Remove the upper radiator support/hood lock carrier. Outline the mounting fasteners for proper assembly.

Carefully lift out the radiator complete with the fan assembly.

On A4 & 1998-00 Passat models:

Remove the mounting fasteners for the power steering cooling lines and move aside without disconnecting.

If equipped with air conditioning:

Remove the left and right side air guides.

Remove the A/C condenser retaining clamp fasteners and retaining clamp.

Disconnect the A/C pressure switch just beneath the headlamp.

Place a suitable protective cover over the right fender, then move the condenser upward away from the retaining bracket and pivot to the side and support it at the right front wheel area using a sturdy wire loop or its equivalent. Do NOT disconnect the A/C lines from the condenser and avoid severe bending and kinking.

Release the upper radiator retaining bolts, pulling up and removing.

Tilt the radiator forward, lifting up to remove.

Fig. On A4 & 1998-00 Passat models, the upper radiator fasteners are removed by releasing the retaining bolts, then pulling up to remove

To install :

Installation is in reverse order of removal noting the following points:

Fill and bleed the cooling system with the recommended fluid and mixture ratio. The recommended engine coolant should only be diluted with distilled water.

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This details will help.

Thanks.

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For more car related problem troubleshooting:---

This are the sections, you can go through and click the link to read its troubleshooting.

---------

The car will not start?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-start.html

-----------------

Car will not crank?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-crank.html

-----------

Car has no spark?

http://schematicsdiagram.blogspot.com/2011/06/car-has-no-spark.html

-------------

How to troubleshoot car battery?

http://schematicsdiagram.blogspot.com/2011/06/how-to-troubleshoot-car-battery.html

-----------------

How to test starter solenoid?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-starter-solenoid.html

--------------------

How to test cars starter?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-cars-starter.html

How to replace starter in car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-starter-in-car.html

-----------

car will turn over but will not start?

http://technoanswers.blogspot.com/2011/05/car-will-turn-over-but-will-not-start.html

-----------------

Car wont start?

http://howtobyme.blogspot.com/2011/10/car-wont-start.html

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Thursday, November 17, 2011

How to Flush cars radiator?

Flushing coolant from radiator or getting radiator cleaned from dirt and junk getting settled in it.
First basic summary about radiator:----

Radiator and its related components:---

The radiator is the most important part of the entire cooling system, is the part that really move the excess heat produced by the engine to the atmosphere. The radiator is composed of several rows of small tubes in two containers, which collects coolant in it.You will see small fins are placed around the tubes.This small fins are to direct air around the outside of the tubes and to help the heat transfer from the tubes to the outside air.

Radiator hoses:---

Hoses are the parts from where coolant comes into coolant and from where coolant flow out of radiator.

The flow of coolant is from lower hose to water pump, through cooling passages in the engine and back through the upper hose and thermostat to the radiator.

Radiator cap:---

Coolant boils at a high temperature in radiator.The radiator cap is just to maintain the pressure of the radiator coolant from flowing out.And it maintains a positive pressure in the cooling system.

FLUSHING CARS RADIATOR:----

Basically there are two types of coolant used in cars.

1) Green anti-freeze(ethylene-glycol). And,
2) Dex-cool (extended life coolant).

Both coolants are good and has there benefits.

The green anti-freeze coolant is most common type of anti-freeze used and used in most of the cars/trucks cooling system.

The dex-cool coolant is orange in color and is supposed to last 100,00 miles.

This both coolants are to be added with 50--50 mixture.That is 50% water and another 50% is coolant.

Basically radiator flushing means,cleaning the corrosion settled in your radiator.
Previously coolant flush was considered as a high pressure flushing system through your radiator.But now a days there are many chemicals introduced,to make coolant flush/cleaning very easy.This chemicals dilutes the rust/junk,goo,dirt collected and then minor radiator flush just cleans the radiator.But in some cases this dirt is so hard and in that cases flushing does not helps and radiator itself needs to be replaced.
So for long life of your radiator,change the coolant every 2 years. Just a simple drain and refill will add years to the life of your cooling system.Also inspect other small parts,which can also cause problems.The parts like radiator cap,heater hoses,radiator hoses and coolant passing line.If you notice problem with this parts,just get it replaced.

This details will help.
Thanks.

For details regarding:--

How does Vehicles Engine cooling system works?

http://repairhelpcenter.blogspot.com/2011/11/how-does-vehicles-engine-cooling-system.html

Engine cooling components working?

http://repairhelpcenter.blogspot.com/2011/11/engine-cooling-components-working.html

For more car related problem troubleshooting:---

This are the sections, you can go through and click the link to read its troubleshooting.

---------

The car will not start?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-start.html

-----------------

Car will not crank?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-crank.html

-----------

Car has no spark?

http://schematicsdiagram.blogspot.com/2011/06/car-has-no-spark.html

-------------

How to troubleshoot car battery?

http://schematicsdiagram.blogspot.com/2011/06/how-to-troubleshoot-car-battery.html

-----------------

How to test starter solenoid?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-starter-solenoid.html

--------------------

How to test cars starter?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-cars-starter.html

How to replace starter in car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-starter-in-car.html

-----------

car will turn over but will not start?

http://technoanswers.blogspot.com/2011/05/car-will-turn-over-but-will-not-start.html

-----------------

Car wont start?

http://howtobyme.blogspot.com/2011/10/car-wont-start.html

----------

For car AC related and Heater related solutions. You can refer the options mentioned below:---

Engine cooling components working?

In vehicles engine,this are the parts below
:---
1) Thermostat.
2) Radiator and Radiator cap.
3) Radiator hose.
4) Heater core.
5) Coolant.
6) Water pump.
7) Heater hoses.
8) By pass hose.

Most of the car engines consists of this parts in there cooling system.In any of this parts gets weak/faulty or dirty.You will notice problem in your cars engine cooling performance.

Continue reading,if you like to know,how this listed components works and functions.This detail will let you understand each component.

1) Thermostat: ---
The thermostat closes the main path of the hot coolant to return to radiator.This directs the coolant through the heater core & back of the engine to reach normal operating range of the engine temperature.Once reaches normal temperature, the thermostat opens. At this point, the refrigerant begins to flow over the radiator hose to the radiator. This feature makes the heater generates heat faster, & allows the engine to warm up more quickly.

Replacing thermostat is not a big deal.Its one of the cheapest component in car engines cooling components.

In most cases, when a customer discovers a problem with engine overheating, faulty thermostat is the reason "It 's probably the thermostat." This is the law of nature. The thermostat work is to prevent the return pass of coolant to the radiator until the engine warms up to operating temperature. Then the thermostat opens and coolant around.

To confirm the thermostat is working properly, inspect the radiator hose radiator hoses.If it gets hot and the coolant flows freely at the top of the radiator, so that the thermostat is opening.But if the pipe is cold to the touch, so that its index of faulty thermostat.

2) Radiator and its related components:---

Radiator hoses:---

Hoses are the parts from where coolant comes into coolant and from where coolant flow out of radiator.

The flow of coolant is from lower hose to water pump, through cooling passages in the engine and back through the upper hose and thermostat to the radiator.

Radiator cap:---

Coolant boils at a high temperature in radiator.The radiator cap is just to maintain the pressure of the radiator coolant from flowing out.And it maintains a positive pressure in the cooling system.

3) By pass hose:---

The bypass hose is the part which allows small portion of the coolant to circulate when the thermostat is closed. On some engines there is no bypass hose.Instead of that they have bypass passage that is part of the engine cooling jacket. Not much to go wrong, unless the hose develops a leak.

4) Coolant: ---

Most cars use a 50-50 mixture of ethylene glycol and cooling water, which also provides anti-icing and anti-corrosion. In extreme cases, cold climates, a mixture of up to 70% of antifreeze to water is used by 30%. Do not try to run your car on pure antifreeze. The engine overheats.Its advisable to use distilled water.If distilled water is used to mix.The corrosion will be less.

5) Water pump :---

The purpose of the water pump is to provide the force that moves the coolant in the engine as system.On the common problem of leakage is noticed.That appear in small hole, which can be easily seen by the shaft if you look closely . This leakage is not a problem if you make sure you reload the system on a regular basis.

6) Heater core:---

Heater core is the part that is used to heat the air inside the car. At the core of process heater heating, hot coolant flows through the tubes and the air is directed through the fins, the heat absorbs and then go to the cabin or defrost vents to the windshield.If a minimal heat is noticed from heater then heater core is plugged or blocked.Its advised to inspect heater core.

Heater hoses:---

Hoses are the part that transports coolant to and from the heater core. If you notice coolant is not going to or coming out of heater core then look for leaks at the hose clamps where they connect to the heater core and the engine.

This are components ,of the engine cooling system.If you notice engine overheating or no heat problem in car then go through the list of engine components.This will help you to confirm what is faulty.So you can get the faulty part repaired or replaced.As per requirement.

Thanks.

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For details regarding:--