Check or replace the sensor unit in the engine. If that does not solve the problem it could be the guage itself is faulty which might or might not be a easy fix. If it is like most new vehicles the gauges are on a PC board and not seperate which means replacing the whole pc board. If in fact it has sperate gauges you should be able then to just replace the guage if the sending unit does not fix the problem. Another thing to check is the engine thermostat it might be staying open allowing the engine to run cooler then it should.
Hi Willie,
i think your radiator is block.try to flush it few times by using radiator flush.and check again.
let us know the status,
regards.
nuwan.
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