Table of Contents
What sensor controls my temperature gauge?
broken coolant temperature sensor
The most common cause of faulty temperature readings is a broken coolant temperature sensor (CTS). The part, which is normally located near a vehicle’s thermostat near the base of the radiator (consult your owner’s manual or repair guide) can get gunked up and fail.
What sensor is next to the coolant temperature sensor?
It is called the “coolant temperature sensor.” The one nearer the back with one wire drives the temperature gauge on the dash. It is the “coolant temperature sender.” There is even another sensor, the “coolant temperature switch” which turns the radiator fan on when the engine is getting too hot.
What voltage should a temp sensor be?
The normal value of the ECT sensor voltage is 2V at cold engine and 0.5V at warm engine. A defect sensor can indicate a voltage of 1.5V at cold engine and 1.25V at warm engine, thus causing difficulties of starting a cold engine and a presence of rich fuel mixture when the engine is warm.
What kind of engine temp sensor do I Need?
Be sure you’re engine temp sensor has 2 prongs and not one. There are 2 common types. For older models (specifically 5.7 Liter Indmar, 1996 EFI), the other one can be found here: Exact replacement for my Mercruiser 4.3L Half the price of the boat store one.
What does engine temp sensor sender coolant read?
Did an ohms test on this sensor when it got it. Merc book says 450 ohms at 160 degrees (F). The sensor was reading 425 ohms which means it will tell the ECU the engine is running hotter than it really is. I checked this on the temp rise & fall & it consistently read less ohms than the OEM spec.
Where can I buy a MerCruiser engine temp sensor?
For older models (specifically 5.7 Liter Indmar, 1996 EFI), the other one can be found here: Exact replacement for my Mercruiser 4.3L Half the price of the boat store one. For 24 dollars I was expecting an OEM original part.
When do temp sensors go out of stock?
Only 4 left in stock (more o… Only 2 left in stock (more on the way). Only 2 left in stock (more o… In stock on June 24, 2021. In stock on June 24, 2021. Only 13 left in stock – order soon. Only 13 left in stock – order… Only 5 left in stock – order soon. Only 5 left in stock – order s… In Stock. In Stock.