driving in high temps / cooling fans
Posted: Sat Jun 21, 2008 9:16 pm
I took the family in the PF out to AZ yesterday. The temps were in the 115+ range for a couple hours of the trip. The electric fan was on every time we stopped. One time, we stopped out near Hope, AZ and left PF running while we stretched our legs. After a couple of minutes, the electric fan kicked up to turbo jet levels. Apparently the PF electric fan is a two speed.
Oddly, the mechanical fan clutch never engaged. It seems that these were the type of conditions you'd hear that thing roaring. I'm wondering what it would actually take to heat it up enough to engage if 115 degrees with the A/C blaring and the PF fully loaded didn't do it. Has anyone heard their fan clutch engage?
The temperature needle never moved the entire trip. The A/C was working overtime, though. We only have the single system in our "S".
Oddly, the mechanical fan clutch never engaged. It seems that these were the type of conditions you'd hear that thing roaring. I'm wondering what it would actually take to heat it up enough to engage if 115 degrees with the A/C blaring and the PF fully loaded didn't do it. Has anyone heard their fan clutch engage?
The temperature needle never moved the entire trip. The A/C was working overtime, though. We only have the single system in our "S".