Antifreeze and Engine Coolant
Chevy Blazer
Buick Rendezvous
VW New Beetle

Where is the coolant sensor on a 1999 Chevy Blazer 4x4?

User Avatar
Wiki User
September 14, 2011 11:48AM

It is located about half way down the block on the drivers side closer to the back.

There are two sensors one for the gauge and one for the engine. One (temp. Sensor) is located on the front top of engine by the goose neck for the upper radiator hose. the other (Temp. Sensor Switch) is on drivers side engine block.