Question about 2000 Volkswagen Passat 4Motion

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2000 passat was running cool...replaced thermostat and now over heats....any help?

Boils over after driving 10 mins

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  • Volkswagen Master
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Check that you put the thermostat in correctly. The body of the unit goes into the water in the head or block and not into the hose.

Posted on Mar 20, 2014

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Posted on Jan 02, 2017

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blueextc3221
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SOURCE: 2000 Vw passat,had no heat.

The heater in your car depends upon a flow of hot coolant going through the heater core in order to get hot air into the car. If the heater core is partially plugged, it will restrict the flow. If you have a head gasket that is putting exhaust into the cooling system, it will eventually get into the heater core. When this happens there is no coolant in the heater core to make the air warm. If the water pump vanes have corroded away the result will be very poor coolant circulation causing the heater to not blow hot air. If your car is equipped with a heater control valve that is not functioning properly, the coolant flow will be restricted. One or a combination of these factors is likely the culprit in your case.

To attempt to clean the core, you must flush the system multiple times. If it is still problematic, changing it is your only remaining option besides the water pump itself.

Posted on Jan 15, 2009

landsend
  • 1066 Answers

SOURCE: OVER HEATING

In the fan circuit...You have a temp switch screwed on the radiator, a fuze and a relay in the fuze box plus a fan.  Swap the relay with another relay, replace the fuze.  The other fan should come on when the a/c is turned on.  If you fix the fans and it still overheats, you may have a BLOWN HEAD GASKET.  ALSO ARE YOU BLEEDING THE AIR FROM THE SYSTEM?  DO YOU SMELL EXHAUST IN THE COOLANT?   

Posted on Mar 12, 2009

  • 11800 Answers

SOURCE: 2006 passat air conditioner takes about 10 min to

Take the car to an aircon specialist, the circuit must be inspected and, if necessary, refilled. You should also check the valve on the heater, it might be stuck open.

Posted on Jul 01, 2010

  • 1252 Answers

SOURCE: Our 2000 VW Jetta stalls after driving 5-10 miles.

Most likely the fuel pump....

Posted on Jul 16, 2011

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1 Answer

My 1996 VW passat over heats. how can i fix it?


The hard hose it a sign of max pressure in the cooling system. Check that the fins in the core of the radiator are solid and not blocked. have a pressure test done on the cooling system for engine faults. Have the radiator fushed out by a radiator shop. Check that the thermostst is opening. Start cold and hold you hand on the top hose It will be cold for maybe 10 minutes and if the thermostat is working it will get warm and then hot to the touch as the unit opens and allows hot water to flow to the top tank

Feb 22, 2013 | 1995 Volkswagen Passat

1 Answer

Running hot


Remove thermostat and test it by dipping it in cold water ib an open pot. Heat the water on the stove while observing the thermostat. It shold opel just before the water boils. If it does check the radiator itself for clogging. Also fluch the engine water galleries.

Sep 27, 2012 | 2000 Chrysler Town & Country

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Drained radiator added prestone Radiator flush refilled and started overheating, drained radiator replaced thermostat and now I get no heat from heater,Radiator water is hot


disconnect the heat hoses going into fire wall , put hose into one with pressure and flush as it sounds like it could be bloked in the heater core,the other thing that could be the problem be the hot ,cold switch as it restricts the flow to makes the heater hoter or colder , it might need tlc or replacing as it is manaul not elec

May 08, 2012 | 1995 Toyota 4Runner

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I have a 2001 VW Passat 1.6S. I have just had the cylinder head gasket, timing belt, water pump and thermostat replaced. When the thermostat is removed the engine runs perfectly. However when it is...


it could be the temmperature sensor, however its sound like the thermostat is still bad, this happens on occasion where you get a brand new part that has a factory defect

Apr 04, 2011 | 2001 Volkswagen Passat

3 Answers

Luke warm heat in a 2002 expediton


Start with Flushing out your cooling system. Flush it out with Preston Radiator flush, you have your preference of ether the super flush which takes 3-6 hours or the 10 min flush which is good if you don't have the time to flush out your cooling system.

After you have flushed out your cooling system, replace your thermostat and you should be good for another cold winter driving. What happens is that after a few years of the coolant not being serviced, the coolant crystallizes and clogs up the heater core and radiator causing poor circulation. Poor circulation will cause poor heat and or overheating issues to the engine.

Before you go through all that inspect to make sure you have the right amount of coolant in your cooling system.

Good luck and thank you for using fixya

Nov 04, 2010 | 2000 Ford Expedition

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Over heating i have water in the radiator do i have to put some radiator fluid in so it wont over heat?


Hi,
You need to check that the water is flowing first, with the engine cold remove the radiator cap and start the engine let it run until it gets warm, once it is warm leave it going until you can see the water flowing. If you can't see it flowing after 10-15 mins of the engine running then you will need to replace the thermostat.
If the water isn't flowing then you have a problem with the water pump and you will need to replace this.
Hope this has helped
Jason

Jun 26, 2010 | 2004 Chevrolet Impala

1 Answer

91 toyota 4x4 22re overheats on highway, but not at idle.


original issue sounded like thermostat but now that you have lost power i would have to say thermostat, blown head gasket, and warped head

to check thermostat find and remove place in pot of boiling water the see if it opens, then to ice water to check if closes.


the only way i know to check headgasket and head is to check oil and water. oil will have water in it, and water iw have oil in it

May 04, 2009 | 1994 Toyota Pickup

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2000 Jetta Heater Not working


2000 jetta warms up when idling, but gets cold as soon as I start driving.

Dec 17, 2008 | 2000 Volkswagen Jetta TDI

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