Question about 2006 Fiat Pininfarina

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I have a Fiat Siena and overheat

Fan stopped and car overheat. Fixed fan and after 10km overheat again. Replace waterpump, thermostat, test compression and radiator and still not fix. Mecanic give up. Please help

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  • 46 Answers

Sounds like you have no problem throwing money at this car. Buy a new temperature sending unit.

Posted on Nov 22, 2013

Testimonial: "Car with mechanic and he cannot find the problem of overheating and seems run out of options now. Will suggest the temperature sending unit to him. Thanks"

  • Cody
    Cody Nov 22, 2013

    Welcome! I hope it works out for you!

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Posted on Jan 02, 2017

alicantecoli
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SOURCE: fiat seicento overheats, had new radiator switch,

check for a feed to the radiator switch fan ?? first

Posted on Sep 24, 2010

  • 1 Answer

SOURCE: fiat seicento 2000 reg keeps

This may be a puzzle...
The seicento (I drive the same car) likes to create problems in the heater section of the cooling system. The small pipes to it (behind the carburator) may be blocked or the entire heater may simply be dirty. Flushing the system with a water hose may help. Usually this problem starts slowly and goes away if you re-start the engine and then excellerate a few times. Check if your heater blows hot air - if yes, and if he keeps blowing hot air (does not cool down and get cold) ther is no blockage. If you have a blockage, your heater will only blow hot for a little while and then comes normal cool air - if this is the case, you have a blockage right in your heating system which runs your cooling system hot and the cap of your cooling tank will start leaking. This is a comon problem on older Seicentos....
Other general problems can also be the case, like defective thermostat, fan motor does not come on (check fuse and relais first).
In some cases, ther might be some air trapped in the cooling system and doing the above will also cure it. At last, check if your water pump is working.
Regards
Herbert

Posted on Oct 17, 2010

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Have machined the head,put in a new gascet,new radiator,waterpump and thermostat. still overheats, but not always.


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