Lexus Thermostats

What does the factory thermostat in a car do? That it helps prevent engine overheats is the short answer. However, it's less obvious how a simple valve, one of the many parts of a cooling system, can achieve this. Yes, how your original thermostat works may be simple: it opens and closes using either a spring or piston, and this circulates coolant through your engine and radiator. However, it's getting the interval right that's key. (After all, coolant must stay within the proper temperature range, whether it's hot out or cold.) Everything happens the way it should, though, thanks to the many other auto parts that work at the same time. They work so well that car thermostat failure is rare and the question of when to replace a car thermostat rarely comes up. If your temperature gauge reads constant, dead-center or slightly cold, then, great news: your thermostat's working normally. However, that doesn't mean it can't go bad, with age or otherwise. There are symptoms of a thermostat not working right, namely a lit Check Engine light, improper valve operation, and stuck valves. Usually, they show up as engine problems and AC and heating malfunctions, though. A non-working thermostat valve can't move coolant correctly, and this either results in an overheat or keeps coolant from reaching the appropriate temperature. Engine efficiency then drops, and your HVAC system stops heating and cooling right. Even the hoses and gaskets surrounding the thermostat area can warp, that is, if they don't fail altogether. In these cases, run an inspection. If you need to change your car thermostat, it's best to swap it out with a genuine Lexus thermostat. You can order one from our auto parts counter online. Buy now and enjoy peace of mind down the road.