Very close to the thermostat housing on the 4.3L and the 2.2L engines.
The temp sensor for the ECM (engine control module) is next to the thermostat housing.
A 1995 blazer does not have a crank sensor. SORRY
Assuming this is a 4.3L engine the ect (engine coolant temp sensor) would be located next to the thermostat housing.
A faulty engine temp sensor can do that.
A bad engine temp sensor can do that.
Next to the thermostat housing.
temp sensor - sends signals to the computer for driveability temp sender - measures temp and sends to gauge in dash
There are several sensors on a 1995 Neon. The water temp sensor, crank shaft position sensor, and oil temp sensor are all mounted at various places on the engine block.
change the water temp sensor
where is egr temp sensor located in 97 nissan pickup l4
Code 23 in your 1993 Chevy Blazer is referring to the Manifold Air temp sensor being out of range. Start by looking for the sensor to see if it is unplugged.
There is a temp sensor on the water inlet for the PCM, and sending units for the gauge on the side of the heads. Normally part stores don't carry the sending units.