IF YOU FOLLOW THE UPPER RADIATOR HOSE IT LEADS YOU RIGHT TO IT. TOP FRONT CENTER OF THE INTAKE MANIFOLD. TWO BOLTS AND THE HOSE CLAMP AND YOU HAVE IT OUT THEN REVERSE PROCEDURE AND YOUR GOOD TO GO AFTER YOU TOP OFF THE COOLANT.
follow the upper radiator hose to the thermostat housing on engine. Thermostat is located under the thermostat housing.
Check the engine thermostat. Its probably stuck open.
It is up by the thermostat housing on the front of the engine.
Follow the upper radiator hose back to the engine, it is connected to the thermostat housing on the engine. The thermostat is located under the thermostat housing.
The thermostat is located under the elbow of the upper rad hose on top of the intake manifold.
The thermostat is located in the housing that the top radiator hose connects to, the bolts holding it on to the engine are metric.
You did not mention the engine size. Regardless, it is in the thermostat housing on the intake manifold.
The thermostat is located in the top hose inlet on the engine. The inlet is on the rear of the engine at the firewall.
Follow the upper radiator hose to the engine, the thermostat is under the housing the hose connects to.
Follow the top radiator hose at the end of that hose is the thermostat housing. The thermostat is located under the thermostat housing.
The fuel pump on that 98 Blazer would be found inside the fuel tank. The fuel tank would have to be removed to gain access to the pump.
Should be in housing at the end of upper radiator hose