2017 Silverado HC 1500
6.2L 8L90
Is there a tuning option to tell the ECM, what temperature thermostat is installed in the cooling system?
GM Thermostat Variance
Moderators: garrett, mikel, sohfast94
Re: GM Thermostat Variance
No... the stock t-stat on those trucks is 207*.... and the preset tunes make changes to the fan settings based on the stock t-stat...
fan power can not be adjusted for anything lower than 192* anyway, so if you change the t-stat, I would not go any lower than a 194* t-stat... otherwise, a colder t-stat, will not allow the engine to get up to its normal operating temps... and doesn't gain you anything anyway...
fan power can not be adjusted for anything lower than 192* anyway, so if you change the t-stat, I would not go any lower than a 194* t-stat... otherwise, a colder t-stat, will not allow the engine to get up to its normal operating temps... and doesn't gain you anything anyway...
06MonteSS / DiabLew Tune

2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com -- www.diablocustomtuning.net

2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com -- www.diablocustomtuning.net