Where is the coolant switch?
Locate the cooling fan switch near the thermostat housing on the left side of engine behind the distributor assembly. The switch wire colors should be green and black. Disconnect the wire terminal at the fan switch. Allow the engine to reach a coolant temperature of 196-203°F (91-95°C).
Does coolant temp sensor affect AC?
In a properly operation system the engine coolant temperature should not affect the cooling of the air conditioner. The A/C condenser is located in front of the radiator and is first to receive the incoming airflow.
Where is the cooling fan located on a Miata?
The base Miata has one fan, mounted on the left (looking forward) side of the radiator, called the Radiator Cooling Fan. The Radiator Cooling Fan motor should use 5.3 – 6.5 Amps.
Where is the coolant temperature sensor located on an engine?
The readings produced from the coolant temperature sensor are transmitted to the engine control unit, where they are utilized as data for regulating and maintaining the proper ignition time and the optimal fuel injection through the computerized approach. The engine coolant temperature sensor is usually located on the engine block or cylinder head.
Is the water thermosensor on a 1990 Miata?
The 1990 FWM is written as though the Water Thermosensor is the temperature gauge sensor, which it is not. There is no data on the actual gauge sensor, although the manual spec on the gauge itself states that the gauge should point to ÒHÓ for a resistance to chassis ground of 20 ohms (18 ohms for Canadian cars). Coolant Flow
Where is the temperature gauge on a Miata?
Normal temperature gauge indication puts the needle just slightly to the left of center for the 1.6 and just slightly to the right of center for 1.8 engines.
The 1990 FWM is written as though the Water Thermosensor is the temperature gauge sensor, which it is not. There is no data on the actual gauge sensor, although the manual spec on the gauge itself states that the gauge should point to ÒHÓ for a resistance to chassis ground of 20 ohms (18 ohms for Canadian cars). Coolant Flow
What should the coolant pressure be on a Miata?
The pressure in the Miata cooling system should be between 11 and 15 psi (25.7 to 29.7 psia) maximum, which would place the boiling point of a 50/50 coolant mixture at around 265¡F (at 15 psi) according to the Prestone labels.
Normal temperature gauge indication puts the needle just slightly to the left of center for the 1.6 and just slightly to the right of center for 1.8 engines.
The base Miata has one fan, mounted on the left (looking forward) side of the radiator, called the Radiator Cooling Fan. The Radiator Cooling Fan motor should use 5.3 – 6.5 Amps.