Have been having probs with low reading temp gauge and remember this from my GT-Four days as being broken Thermostat. Having found where this sits on the engine I set to work to remove and replace. My God what a bloody awkard job to undertake. it must have taken well over 2hrs to remove after moving heatshields and clip/wires out of the way.once removed it was apparant that the seal had failed and was letting by thus causing the problem. another 2 hrs of fitting stuff back and cleaning stuff up and all was finished, now the gauge reads perfect. Its a job I dont want to revisit for a long time.
Need to grow some skin back on my hands now
Regards