Engine Fans

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

K223

FRF Addict
Joined
Sep 15, 2019
Posts
5,178
Reaction score
3,444
Location
Florida
The last two days my engine cooling fans are running on high from the time I cold start. I know it’s hot out mid 90’s lately, but never observed this right from the start. The truck is running normal temps as well.

I’m going to monitor and start it earlier tomorrow morning and see if the same. Otherwise might there be something else going on?
 

CoronaRaptor

FRF Addict
Joined
Dec 17, 2012
Posts
28,961
Reaction score
31,171
Location
CANADA
Clean the bugs and crap off the condenser/radiator with a mild degreaser, pressure washer at the car wash. Just to be sure.
 

isis

FRF Supporting Member
Supporting Member
Joined
Aug 28, 2019
Posts
1,760
Reaction score
1,690
Location
PA
If your parked vehicle is baking in the sun the sensors may be hot on start up too.
 

Smokey

Member
Joined
Aug 28, 2019
Posts
44
Reaction score
79
Location
Utah
mine has been doing the same thing. I didn't give it a second thought as it's been 100+ and the A/C is on.
 
OP
OP
K223

K223

FRF Addict
Joined
Sep 15, 2019
Posts
5,178
Reaction score
3,444
Location
Florida
I started the truck this eve after it cooled down some to like 87 and rain clouds moved in. The fans spun up but lowered down to a moderate level. We have been in a heat wave down here with that Saharan dust. So the last two days I haven’t started the truck until the afternoon. It’s been 95 degrees and just boiling hot sun. The trucks screen said it was 114 out lol. I’m in Florida not the desert. But that sun is HOT!

So I can only say the truck knows when it’s hot and will turn things up before it has to. Just something new I observed since I had it.
 

Russ103

Full Access Member
Joined
May 13, 2019
Posts
829
Reaction score
1,172
Location
MD
I started the truck this eve after it cooled down some to like 87 and rain clouds moved in. The fans spun up but lowered down to a moderate level. We have been in a heat wave down here with that Saharan dust. So the last two days I haven’t started the truck until the afternoon. It’s been 95 degrees and just boiling hot sun. The trucks screen said it was 114 out lol. I’m in Florida not the desert. But that sun is HOT!

So I can only say the truck knows when it’s hot and will turn things up before it has to. Just something new I observed since I had it.

My previous F-150 sometimes had the fans kick on high upon a cold start sitting in the garage when the temps were 90+ so I think it’s normal.
 
Top