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Old 12-27-2009, 08:13 PM
Fx4wannabe01 Fx4wannabe01 is offline
Ford Ranger Driver
Join Date: Sep 2009
Posts: 4,058

The OP is looking for an outside air temp gauge....probably to see if it's below freezing or not is my guess. Below freezing = moisture on pavement will be ice. In my opinion, throw in an Explorer overhead console.

The scangauge shows intake air temp(IAT). The temp of the air going into the engine. On newer rangers, it's a sensor in the MAF(Mass airflor meter) and in older models it's it's own seperate sensor generally located closer to the throttle body. Intake temp is almost always cooler than ambient temp(outside temp) when traveling because there's cooler air being shoved in(ram air effect), resulting in a lower temp. When parked, that number will rise with engine heat as there's no ram air effect.

On a 60* day, at about 75mph my IAT is about 40*.
'01 XLT disguised as a '03 Fx4 Level II.

Last edited by Fx4wannabe01; 12-27-2009 at 08:17 PM.
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