The 99 Chevy S10 does not have a fuel pump reset button. The pump is controlled by the relay unit.
The A/C reset button is located in the climate control system. It includes the Fan, Temperature and Mode knob. You can set the A/C to vent, defrost, defog, and floor.
Dexcool
No, Dodge does not use inertia/reset switches.
GM vehicles do not use inertia/reset switches.
Yes, the exhaust manifold on a 99 Chevy S10 2.2 will need to be be removed during the blown head gasket repair.
99 mpg
there is no such thing as an egr position sensor
Caliper pins.
On a 97 Escort there is a small maroon button on the front of the fuse that pops out if tripped. You just push the button in to reset it. I assume it is the same for the 99 Escort.
It should be mounted into the drivers side rear of the transmission.
Under the hood in the fuse/relay center.
You are probably hearing the fuel pump, this is normal.