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overheating

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  • overheating

    hi

    my mk1 runs hot... really hot. ive been told they all run warm, but after 10 minutes driving the temp gauge is in the orange. ive replaced the thermostat with an aftermarket neuspeed one. what could be the problem? let me know

    thanks
    1991 mk2 golf gti
    1974 beetle 1600 s
    mk1 16V hybrid/bitzer

  • #2
    Back flush the radiator and throw the thermostat away. that means your car will underheat, which is not a problem in the heat.
    sigpic Camden GTI Performance. VW / AUDI Specialists
    All Mechanical Work, Log book Servicing, New and used Parts and Imports
    19-20/6 Badgally Road, Campbelltown, 2560
    02 4627 3072 or 0423 051737 www.camdengti.com

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    • #3
      Careful!

      Originally posted by Golf Loon
      Back flush the radiator and throw the thermostat away. that means your car will underheat, which is not a problem in the heat.
      Yeah...But put the theremostat back in after the summer heat or fuel consumption and engine wear will increase dramatically.....especially on shory runs. Backflushing the rad sometimes works, but really it needs to be cleaned out properly. A lot of rad repairers won't touch Al/plastic rads but you can carefully uncrimp a tank and clean it yourself. A new seal is good to have, but I've got away with using the old one in the past.

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      • #4
        heat

        that could also be the sender unit as well, either not working properly or not the corresponding unit for your instrument cluster, sometimes the printed circut can even break down & they are near impossible to get for a mk1
        best to check your radiator water temp with a thermometer to see what the temp actually is & then take it from there
        regards ian

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        • #5
          don't forget to check the water pump aswel!

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          • #6
            Does your fan not turn on ?
            sigpic MK2 GTI G60

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            • #7
              overheat

              with the printed circuit, if it has failed I have found a semi retired auto electrician who usually works on triumph, fiat, lancia & alfa's who can actually rebuild the fuse box circuitry good as new so if you discover that is the problem give me a bell and i'll give you his number. I've had 3 rebuild so far and it is amazing the results, no more voltage drop or hot wires required!!!!!!!!!!!!!!!!!
              Luke
              77 Golf tarmac rally
              89 porsche 911
              80 Rabbit 4dr
              11 mk1 and 2\'s in various states of undress
              KEEPING THE BIG CUBES IN THE REAR VISION MIRROR

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