The differential fluid appears to be coming out of the vent hose?

CRAZYDOG72

MEMBER
2007 DODGE DURANGO
3.7L
6 CYL
2WD
AUTOMATIC
250,000 MILES

I didn’t feel any fluid when I stuck my little finger in there. What could be the cause of this and how do I fix it? I recently got the vehicle listed above and I don’t know much about it.

Saturday, June 22nd, 2024 AT 6:02 AM

5 Replies

KEN L

MASTER CERTIFIED MECHANIC
47,643 POSTS

Yep, this can happen when the differential overheats due to gear oil that needs to be replaced or there is a mechanical failure causing the problem, either way I would remove the rear diff cover to inspect the gears and fluid conditioner, (check the fluid for metal flakes). Here is a generic guide to help you step by step with instructions in the diagrams below to show you how on your car:

https://www.2carpros.com/articles/differential-service

Check out the images (below). Please upload pictures or videos in your response to any problems so we can see what to help you with.

Images (Click to make bigger)

SPONSORED LINKS

Was this

answer

helpful?

Yes

No

Sunday, June 23rd, 2024 AT 11:29 AM

CRAZYDOG72

MEMBER
13 POSTS

Okay, there is also a hum or something is vibrating when I let off the accelerator above 60+. Could it be the gears or the driveshaft?

Was this

answer

helpful?

Yes

No

Sunday, June 23rd, 2024 AT 11:56 AM

KEN L

MASTER CERTIFIED MECHANIC
47,643 POSTS

Yep, is the hum coming from the rear of the car? If so, it could be the rear end is having an issue. I would remove the rear cover to see what's going on. Also, you can remove the driveshaft to check the U joints.

Here is a generic guide to help you step by step with instructions in the diagrams below to show you how on your car.

https://www.2carpros.com/articles/how-to-remove-a-drive-shaft

This guide can help as well:

https://www.2carpros.com/articles/how-u-joints-work

Check out the images (below). Please let us know what happens.

Images (Click to make bigger)