Acura 19301-PAA-306 Thermostat Assembly (Nippon Thermostat)

You can Select Your Vehicle to check if 19301-PAA-306 fits your vehicle.

Before supposing that the thermostat is responsible for cooling system trouble, check the coolant level, tension of the drivebelt and if temperature gauge operates. If it takes a while for the engine to warm up, then most probably the thermostat is stuck open and needs to be replaced. In case your engine runs hot and lower radiator hose isn't hot, you may need to replace its thermostat which may be closed frozen. No driving must happen without a thermostat in a vehicle because it will impair computer operations as well as fuel economy. This means that the coolant is moving and that thermostat is open if lower radiator hose becomes hot. Start by removing cable from negative terminal of battery before replacing the old one with new one. Drain coolant system only when antifreeze is in good condition should you save it out instead of disposing off Pouring down into environment's drain plug. Follow lower radiator hose on an engine to where there are thermostat housing covers. Disconnect electrical connector connected to coolant temperature sensor or detach the hose from fitting Remove this fitting by using adjustable pliers twisting on stuck hose breaking its seal Sometimes such hoses are cut away and a fresh pipe fitted in place Once this fitting has deteriorated beyond use; you should now consider changing these covers of housing for thermostats Removing bolts covering thermostat cover edging them apart Note how they were installed so that you can remove them Clean any old gasket material or sealant from housing as well as cover The rubber gasket placed over top of new thermostats thus further known as jiggle pin would also be installed into these engines' housings Lastly, tightens securely all bolts together with installing hose clam again Check for leaks after refilling cooling system before starting engine.

To counter-check, check the coolant level, drive belt tension and the temperature gauge. In case the engine takes a long time to warm up, then its thermostat is probably stuck open. Put in a new thermostat. If your engine seems to run hot, reach over and touch the upper radiator hose with your hand. In case it does not feel hot but your engine is overheating, then most likely your thermostat is stuck closed so that no coolant inside goes to the radiator. Change the thermostat. Warning: Do not drive a vehicle without a thermostat because the computer may stay in open loop and this will result in emissions and fuel economy degradation. If the upper radiator hose feels hot it means there is flow of coolant through it as well as that the thermostat is open. Check troubleshooting section for cooling system diagnostic procedure. To install a new thermostat, remove negative battery terminal from battery and drain coolant from cooling system first of all follow upper radiator hose back toward engine until you locate housing where you find out exact location of where lower end of hose connects onto housing once lubricated twist off squeeze end or remove by turning pliers at same time if stuck take adjustable pliers grab close tip twist break seal jerk pull away,If the hose is old or deteriorated, cut it off and install a new one. Remove the bolts and detach the housing outlet. note what happens when pry apart although expect some antifreeze come out breaks clean away see way prior removing gasket pullover way threads obtain more or less smear appropriate silicon grease place tiny piece upon ring different push barb side insert carefully upside down make certain plus rubbers don't overlap and have main spring situated direction towards center re-tightens fix set again make fastened tighten order after secured retighten tightens bolts connect screw tightly fitting reconnect applying them fit using mounting brackets refill antifreeze start motor reaching standard operating temperature testing against leaks thermostat up and running again.