Question about 2001 Volkswagen Golf

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My car engine temperature goes beyond 90 and m getting a check coolant warning.when that situation occur,the aircondition stop functioning.

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Fixya just published my Coolant System Troubleshoot Guide.

You can see it FREE HERE


Please rate my TIP if it's useful to you.

Thanks

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Posted on Dec 11, 2009

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  • Master
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First thing to replace is the coolant sensor to the ECU, this is located on the top radiator hose near to the engine, it has 4 wires going to it.

Should cost about £12 ($16)

V E R Y C O M M O N ! !

:o)

Posted on Dec 11, 2009

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01 Cadillac overheating and having no power like it has a governor on it


The engine is swelling because of the over heating. Stop using it !!!!!!!!! Gotta fix cooling system lest you seize the engine.

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Peugeot 406 coolant temp warning light


1. Check the coolant level if you have not already.

2. The most likely cause is a stuck thermostat so that when the engine is getting up to operating temp the thermostat is not opening at all - or enough - for the coolant to flow freely between the radiator and the engine to cool the heated fluid. If you check the radiator after driving and find it is cold it is a sure sign that the heated coolant that is circulating through the engine at operating temp and higher is not getting to the radiator. The first thing I would do is to change the thermostat and re-check. At the same time completely flush the coolant and replace it with new fluid of the correct spec.

The radiator fans are not going to operate when the fluid in the radiator is cold because the hot fluid cannot flow through from the engine. The fans have a temperature sensor switch.

3. If that does not solve the problem I would suspect the water pump has corroded and needs to be replaced. However from the symptoms you have described I believe a new thermo will fix the problem.

4. Don't drive the car when it is overheating. This is a certain way to blow the head gasket and potentially crack or warp the cylinder head. (In a worst case you can crack the engine block.) It will be nice and expensive to repair if you blow a head gasket or damage the cylinder head.

Dec 22, 2012 | Peugeot 406 Cars & Trucks

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Overheating with AirCon ON, OK with Aircon OFF


if engine over heating coolant over flow jug will boil over you will see steam.sound like you have either faulty engine coolant temperature sensor or could have faulty fans relay or fuse or pcm problem if coolant fans dont turn on.have garage with code scanner that can do a snap shot on coolant temperature sensor check see how hot coolant temperature is see if coolant temperature over 220 degrees engine getting too hot.could have faulty water or blowed head gasket check engine oil on oil dip stick look milkly you have blowed head gasket. i use infra red laser thermometor check see how hot engine is over 107 celsius engine is overheating.

Dec 10, 2012 | 2000 Toyota Sienna

1 Answer

Car keep over-heating on a 2005 chevy equinox


Assuming that you already checked for the engine oil and the radiator coolant level, and if they are ok, then open the hood of your car and start your engine, then go to the front of your car and watch out for the fans, they are gonna be off when you start your car, but keep looking at them they should activate when the engine is hot enough. They should activate just before your water temperature gauge (instrument pannel) reach half of the way. If the temperature gauge goes beyond that (overheating) and the fan hasn't activated yet then two things can be wrong your water thermostat (makes the fans activate when your car reaches aproximately 90°C) or your fans could be burned. I hope that helps

Jun 23, 2011 | 2005 Chevrolet Equinox

1 Answer

I have a 2003 VW Passat. I keep getting a warning signal that says, "Stop, Check Coolant". According to the temperature gauge, the car is not getting hot. However, at times I do hear a...


A "check coolant" message is generated when a coolant sensor (the Passat has more than one, I believe) returns an abnormal reading. That can occur when there's no coolant circulating (eminent engine seizure) or if the sensor is stuck in an air pocket.
A bubbling/gurgling sound suggests that your cooling system has some air in it, and that might be generating the error messages. If you have just flushed your system, it's possible that someone didn't take the time to purge the system of all air as new coolant was introduced. However, if the system is more or less completely full of coolant, these should eventually work themselves out. Keep an eye on the coolant reservoir tank and keep topping it off if you see the level going down.
A second possibility is that one of your coolant sensors is going bad. I just had to replace one on a 2002 Passat with only 51,000 miles on it. A bad sensor will also return odd readings that trigger warning lights.
A third, much more expensive, possibility is that you are developing a weak spot in one of your head gaskets (I'm assuming you have a Passat with a V6; the 4-cylinder engine will have only 1 head gasket). In that situation, hot exhaust gases may be leaking into your coolant, causing localized hot spots and possibly triggering the error message that you've been receiving.

May 10, 2011 | 2003 Volkswagen Passat

1 Answer

After a few minutes of driving the engine begins to overheat. The engine signal and the warning cooling light both come on. Although the engine temperature is 90 degrees, the indoor heating fan is still...


There could be 3 possible problems here.

If the dashboard is saying the engine is overheating at 90 degrees and there is still cold air coming through then the thermostat could be faulty. I would suggest that you remove the thermostat and place it in a beaker of boiling water. If the top begins to open as the temperature rises, then it is fine. If not, then the thermostat will need to be replaced.

If the thermostat is fine, I would then suggest that you check your coolant levels, the coolant pressure or make sure there isn't a crack in the radiator. If there isn't enough coolant in the system then it won't perform to its highest standards. If the coolant pressure is too low, then it won't be able to cool high temperatures, although 90 degrees isn't very high for the engine to overheat. If your radiator has a crack in it then it will be leaking coolant which would explain a low coolant level and loss of pressure.

A third problem could be air getting into the heating system which will cause air to get trapped in the radiator. This would stop the normal flow of coolant. So now I would suggest checking the cylinder head gasket and do a pressure test to see if there is any air getting into the system.

Feb 02, 2011 | 2002 Volkswagen Golf

1 Answer

Everytime i turn on the aircondition the temperature gage getting higher, what's wrong with that?


Hi. Generally, engine temperature will change when you turn on the AC since there are friction added to the engine. If your car goes to overheat then the issue would be the cooling system of the car. You may check these part for your cooling system. First is check the reserve if water/coolant ran out. If liquid rans out to the reserve then the problem could be the hose's or the radiator. Check for holes and possible cuts. Second is cehck the radiator thermostat. It might not functioning well. Third is the water pump, pump might not be working in good condition.

All the best!

If you need further help, reach me via phone at https://www.6ya.com/expert/elixirjose_00375ea24bd8141b

Sep 18, 2010 | 1992 BMW 5 Series

1 Answer

Thermostat housing replacement


These are the steps to replace the thermostat but are applicable to remove and replace the housing also. 2.0L DOHC Zetec Engine WARNING Do not mix Standard (green) Coolant with Extended Life Coolant (orange). If mixing occurs, drain engine cooling system and refill with originally equipped coolant type. If this contamination occurs the service change interval on Extended Life Coolant will be reduced from 6 years/150,000 miles to 3 years/30,000 miles.

  1. Disconnect the battery ground cable.
  2. Drain the engine coolant to a point below the water thermostat.
  3. Disconnect the connector from the camshaft position sensor.
  4. Remove the bolts and move to one side the water hose connection.
  • Remove the water thermostat and seal from the water thermostat housing.
  • Inspect the seal and the water thermostat.
  • To install:
    1. Replace the thermostat and seal into the housing.
    2. Connect the connector to the camshaft position sensor.
    3. Fill the cooling system.
    4. Start the engine and check all hoses and connections for leaks. Allow the engine to warm up so that the water thermostat opens.
    5. Stop the engine. Top off the coolant recovery reservoir as necessary to maintain minimum cold fill level.
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    2.0L SOHC Spi Engine
    1. Disconnect the battery ground cable.
    2. Remove the air cleaner outlet tube.
    3. Drain the engine coolant to a point below the water thermostat.
    4. Disconnect the water temperature indicator sender unit and the engine coolant temperature sensor electrical connectors.
    5. Disconnect the upper radiator hose and the heater coolant hose from the water thermostat housing.
    6. Remove the water thermostat housing bolts, the water thermostat housing, and the water thermostat.
    To install:
    NOTE Make sure all of the gasket surfaces are free of all gasket material. Make sure the tabs on the engage properly into slots in thermostat housing.

    1. Install the thermostat housing bolts, thermostat housing and the thermostat.
    2. Connect the upper radiator hose and the heater coolant hose to the thermostat housing.
    3. Connect the water temperature indicator sender unit and the engine coolant temperature sensor electrical connectors.
    4. Fill the cooling system with only Ford Premium Engine Coolant E2FZ-19549-AA (in Oregon F5FZ-19549-CC, in Canada, Motorcraft CXC-8-B) or equivalent meeting Ford specification in a 50/50 mixture with water.
    5. Start the engine and check all hoses and connections for leaks. Allow the engine to warm up so that the water thermostat opens.
    6. Stop the engine. Top off coolant recovery reservoir as required to maintain minimum cold fill level.

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