Anyone else do this in the winter?

[iboughtatahoe23]

-25°F today.

 

[SpareParts]

No. As long as my thermostat works, I have not needed to do that. -25 make dang sure your Antifreeze up to 5nuff. Censored, Really!!!

 

[Fless]

I've done that in various vehicles but put the cardboard -- with a larger hole cut out -- behind the grill and in front of the radiator. Had a Corolla that wouldn't heat up in winter coming down from the foothills; apparently the engine wasn't working hard enough on the downhill (first 10 miles of my commute). Other than that it was on a few different cars in the middle of a Northern Illinois winter.

 

[justchecking]

My buddy and I were in an M151 and FREEZING so when the convoy stopped for some reason we hopped out and rolled the front winter kit flap down to get some heat. Didn't go a mile and the convoy had to stop again because we over did it and overheated! That was enlightening.

 

[tom3]

A lot of the new Tahoe/Yukons have shutters just behind the grill to cut the air flow. More for gas mileage than warm up but should help that too I'd think.

 

[iboughtatahoe23]

A lot of the new Tahoe/Yukons have shutters just behind the grill to cut the air flow. More for gas mileage than warm up but should help that too I'd think.

Don’t think mine does. I can see straight into the radiator.

 

[iboughtatahoe23]

I've done that in various vehicles but put the cardboard -- with a larger hole cut out -- behind the grill and in front of the radiator. Had a Corolla that wouldn't heat up in winter coming down from the foothills; apparently the engine wasn't working hard enough on the downhill (first 10 miles of my commute). Other than that it was on a few different cars in the middle of a Northern Illinois winter.

I tried but the area where I’d put it in is sealed off. Completely. And the fans are blocking the back area as well

 

[GMCChevy]

It's normal to hit temps like that here and have never had to do that.
But whatatever works cause you don't want to be messing with stuff when it's that cold.

 

[tooleyondeck]

I am from Florida... what am I looking at?

 

[89Suburban]

-25°F today. View attachment 450553

Not on my GMT900 but I have on my older squarebody trucks. Including the one in my avatar which actually has one but it's cropped out of the pic. I also made one out of plexiglass to make it look a little less ghetto.