Howling noise

MY truck is making a strange howling noise, this happens when the truck is turned off and lasts for approx 1 to 3 minutes.Any clue?

have you been driving for a while? AC on? Real hot day.

Maybe the fans are still running??

MY truck is making a strange howling noise, this happens when the truck is turned off and lasts for approx 1 to 3 minutes.Any clue?
Can you describe it in any more detail? like do you hear it when standing outside/inside/both, front, back, under the hood, middle, high or low location? etc.

anything will be helpful

MY truck is making a strange howling noise, this happens when the truck is turned off and lasts for approx 1 to 3 minutes.Any clue?

The only "Howling" I've heard usually happens when I pull-up and there are a lotta people around.
Followed by cheering, applause, and comments like "COOL Truck!!!". ;)

WOW............ !!

Howling noise. Anyone?

Gas tank pressure equalizing???

Gas tank pressure equalizing???

That would be my guess. Easy enough to check. While it's making the noise open the gas cap and see if it immediately stops.

I think it might be the electric fan.

In any case, he hasn't posted again, so we may never be able to help him.

Very strange sound! Have no idea what it could be.

MY truck is making a strange howling noise, this happens when the truck is turned off and lasts for approx 1 to 3 minutes.Any clue?

have you checked to see if there is a dog trapped in the trunk?

I had a really bad squeaking noise in the engine compartment of my 1987 Dodge Dakota. Turns out a mouse had build a nest on my engine block. The dirtly little beasts also gnawed on the spark plug wires.