hard start, no start, ruff idle, poor gas mileage n more
wrote this up for another user. figured I wld post for future searches
coolant temp sensor, and coolant temp sender sensor, your truck has both.
They are two separate and distinct sensors.
The CTS coolant temperature sensor send signals to the ECU (computer) telling the engine how hot it is or isn't allowing the computer to send the ignition signals to advance or retard the timing to allow your car to be more efficient. When it goes bad it will and can cause the following conditions:
no start when warm
no start when cold
crappy gas mileage
The Coolant Temperature Sender (usually black or brown) lights up the idiot light or the water temp gauge by sending signals to the Coolant temp relay.
Both work on the same principle that resistance to the unit varied with the temp of the water.
So re-capping one sends signals to the computer.
One sends signals to the gauge.
MY BUILD THREAD
1999 MAZDA 2500SE, 2.5L 4-clanger, 5 speed, Green n slow. Rangers as daily drivers since 1988.
ASE Certified Mechanic, Builder of Show Destroying Protouring and Classic cars..