Switch on AC Drier?

[MPDano]

Is this switch a Pressure or Temp Switch, which turns the Electric Fans on? This switch is mounted on top of the AC Drier.

[rjm65]

Switch on the drier is pressure and can turn on the electric fan. There's another switch on the block that is temp, and that can turn on the fan too.

If you look at the switch on the drier, you'll notice it looks just like the pressure switches that work the brake lights (near master cylinder)

[MPDano]

Originally Posted by rjm65

Switch on the drier is pressure and can turn on the electric fan. There's another switch on the block that is temp, and that can turn on the fan too.

If you look at the switch on the drier, you'll notice it looks just like the pressure switches that work the brake lights (near master cylinder)

The reason I asked the question was because "where is the pressure from?" It's not the internal pressure from the Drier since the Switch screw was not capped and there was pressure in the Drier before i released it to install it.

Are you sure it's pressure?

[rjm65]

Here's the link to the pressure switch, then click on the images tab, then scroll down to the parts diagram.

That's the switch you're asking about right?

[neil30076]

If there is a small hole in the center of the switch its pressure, otherwise temp.... from what i recall, having replaced it a week or so ago, its pressure to turn on the fan if presuure goes up in system.

[MPDano]

Originally Posted by neil30076

If there is a small hole in the center of the switch its pressure, otherwise temp.... from what i recall, having replaced it a week or so ago, its pressure to turn on the fan if presuure goes up in system.

Ok, I think I recall it having a hole in the switch, but "Where" does it get it's pressure? Like I said, there was "No" cap on that threaded area that you thread the pressure switch on. There "Was" pressure in the Drier before I released it, to install the Drier.