Steebles Posted December 11, 2016 Report Share Posted December 11, 2016 Running the 160 Tstat with a v10 tune. It's now winter in Cleveland, and I can't seem to get heat to stay running in the cabin. Takes forever to warm up, and I can only get heat when the engine is under load. If I come to a stop - the HVAC cools down significantly. Is this a function of the tune, thermostat, or both? Can I swap back to the stock thermostat on a v10 tune in the winter to eliminate this issue? Quote Link to comment Share on other sites More sharing options...
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