Hanns Per Posted March 30, 2018 Share Posted March 30, 2018 cannot explain the following issue I have with a Duratec 83 C degree thermostat. Its in a 2.1 (bored 2l) tuned engine. The issue: after installation of the thermostate the engine ran well on 83 C for abut 40 km and with max approx. 5000 RPM. Then I made a sharp acceleration up to 7800 RPM for a takeover. Since then the thermostat regulates the water temp at 89 Degree. How come? thks for feedbackHanns Per Link to comment Share on other sites More sharing options...
SM25T Posted March 30, 2018 Share Posted March 30, 2018 Is the 89C a real temperature ... or is it a temperature sender problem ? Do you have a contactless thermometer ... Red Dot on the target type device that you can measure the temperature of the hoses ? Does the Duratec use the Caerbont temperature sender with one cable core connection to feed the gauge ? These are very unreliable. Link to comment Share on other sites More sharing options...
aerobod - near CYYC Posted March 30, 2018 Share Posted March 30, 2018 I would also check the voltage across the gauge before and after the temperature shift. Voltage variations will cause inaccuracies in the instrument reading for analogue resistance based senders. Link to comment Share on other sites More sharing options...
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