[topgun1]

So today I replaced my stock thermostat with the SLP 160 degree thermo. Never had any cooling problems before. Filled back up with Dexcool 50/50 exactly like directions (already pre-diluted). Within 10 minutes of driving, my car is overheating, got high coolant temp alert, then a/c turning off due to excessive engine heat, then engine overheating--idle engine, which I did and eventually made it back to the house. lucky I was only a few minutes away.

The fans didn't come on until the coolant temp was up in the 230's! I let it cool down and it just kept creeping up again, no fans kicking on. The fluid appears to be moving in the radiator, there are no leaks or unusual noises or anything. Why would the fans not be coming on now if I only replaced the thermostat? fault thermostat? I can't even drive it right now. I will likely put the stock one back in tomorrow morning and see what happens, but that shouldn't have anything to do with when the fans kick in, that should be controlled by the engine computer right?

any help here would be greatly appreciated!!