howling noise when xj sits all night

[steel58ers]

Lately when I start up in the morning and head to work, I get a howling noise in the area of the tranny /transfer case. It sounds like that area from inside the vehicle and it only last for a few seconds and is gone by the time I move 10 feet down the road. It seems like its only when it sits all night and I head out in the morning. I know its tough to pin point but is there anything I should check or keep an eye on ? I have a 1 inch transfer drop on my lift that is coming off in 2 weeks for a hackntap and cv driveshaft. Could that be the problem u joints ?

I did a search but must guys have a howl while driving down the road from there diffs.

Thanks
Dave

NAXJA forever

[87manche]

have you checked the fluid in the trans yet?

[Lawn Cher']

Your jeep is not a morning person.

[90xj06]

is it the fan whirling up when you first start it. mine does it to when its cold at night. about 10 sec right when you start it.

[rocklandxjer]

90xj06
turn off, and start your xj with the heater/vent/ac in the off position, that will eliminate the sound, wait like 5 mins and it wont make it you have to let the belt warm up

[90xj06]

ya. not the heater fan the engine fan. i know the noise isn't bad and it doesn't bother me.

[rocklandxjer]

same belt, does it still do it when the heater (etc) is off? if so, id say lube the fan up around any moving parts first