Stubborn Fogging - 2011 Ford Mustang GT 5.0 Long-Term Road Test

2011 Ford Mustang Long-Term Road Test

2011 Ford Mustang GT 5.0: Stubborn Fogging

August 24, 2011

Ford Mustang GT fogging 2.jpg

Our long-term 2011 Ford Mustang GT 5.0 experienced some fogging of the windshield yesterday. I've noticed this several times recently, but last night was the worst condition, so far. It was hot and unusually humid in SoCal yesterday, but cooled down quickly in the evening. The car's display said the ambient temp was 68F, but it felt at least 5 deg cooler as we were close to the ocean.

Anyway, I tried the front defroster with both A/C on and off, fan low and high, cabin temp setting at hot and cold, and of course I had the window open. But that fog patch stubbornly refused to go away. With almost every car I've driven, if I just crank the defroster with the A/C, the fogging quickly disappears.

It didn't block my view, so I didn't worry about it, although again this morning there was a small, light patch of fogging. I thought that there must be a dead area in the defrost registers, but I put my hand up there and felt the air blowing out. Huh.

Any suggestions?

Albert Austria, Senior VE Engineer @ 13,300 miles

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