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if you look just under the distributor you will see where from right to left you have a radiator hose, heater hose, then two sensors, the sensor furthest to the left is your coolant sensor, I was troubleshooting mine earlier and started the car with it disconnected i got check engine light with p0118 (coolant temp sensor) so there ya go
The 1991 Acura Legend does not have an oil temperature sensor. It does have an oil pressure sensor. The oil pressure sensor will be located on the left-hand side of the engine.
The IAT sensor on a 1999 Acura Tl is located inside the air box. The sensor reads the temperature for the air that enters into the engine through the intake system.
My ACURA mechanic said @ 125,000 miles to change the Engine Coolant in my 2005 Acura TL.
The intake air temperature sensor is located on the mass airflow sensor in the engine. It is in the engine's air cleaner's cover. Since it is electrical, one must disconnect the battery before touching or removing it.
it is located on the firewall side of the engine to the left of the oil filter
Disconnect the negative battery cable.Drain the engine coolant into a suitable container.Unplug the sensor connector.Using the proper size socket, loosen and remove the knock sensor.To install:Carefully thread the sensor into the engine block.Tighten the sensor.Attach the sensor connector.Refill the engine coolant.Connect the negative battery cable.
The IAT sensor, or intake air temperature sensor, is located on the tubing the of intake on a 1991 Acura Integra. This sensor reports the temperature of air coming into the engine directly to the ECU.
The 1997 Acura intake air temperature sensor is located on the air filter housing. The sensor will be on the right hand side of the air filter housing.
If you are talking about the engine coolant stat you need to follow the lower radiator hose towards the engine. Before removing anything the engine must be cool and the coolant has to be drained. If this is met remove the hose and the coolant temperature sensor. Then remove the two bolts on the thermostat housing. Remove the stat and replace. Replace the hose and sensor. When replacing engine coolant you must bleed out ALL air. This can be done by the bleed plug at the cylinder head. Just loosen and retighten when all air is removed. If any questions arise you can pick up the Haynes Manual from most Parts stores. I think it is better for pictures and explanations.
check your coolant levels and radiator if they are ok make sure it doesn't have a blown head gasket which are very common with these years of the acura legend..