Question about 2002 Volkswagen Jetta TDI

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2002 V.W. Jetta 2.0 liter overheat

BOTTOM RADITATOR HOSE AND ONE HEATER IS COLD, UPPER RAD. HOSE IS HOT, OVERHEAT LIGHT COMES ON, GAUGE WILL GO UP TO 240, RAD. FEELS COOL, OVERFLOW TANK WILL RUN OVER, SEEMS LIKE THERE IS AIR IN SYSTEM, NEW THEROSTAT, RAD. CAP,

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  • BILLSTOWING Sep 24, 2008

    The cooling fans are cycling fine.

  • BILLSTOWING Sep 24, 2008

    Yes, and there is not any heat. Thank you.

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Turn your heater on to max heat and high fan. then see if you can feel the hoses on the firewall for heat they should be hot. make sure that the fan unit on the radiatoris working if the upper radiator hose is hot the fans should be running if they are not that means that either the relay is bad the thermo sensor is bad or the fan unit is shot... please rate the solution..........thanks

Posted on Sep 24, 2008

  • Ronald Mueller
    Ronald Mueller Sep 24, 2008

    did you turn your heat on inside the cab to high heat and high fan?

  • gary steeele
    gary steeele Oct 10, 2013

    yes , bottom hose is cold , top hose hot hal radiator hot, and other half cold

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Sounds like your water pump is going out. are the hoses building up pressure. i had this problem on my jetta diesel and it was the water pump.

Posted on Jan 28, 2009

  • gary steeele
    gary steeele Oct 10, 2013

    no pressure in hoses , don,t even know where water pump is situated

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