Differential vent valve location?
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Instructor
Joined: Oct 2008
Posts: 239
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From: Uxbridge Ontario
Differential vent valve location?
I want to check if my differential vent valve to see if fluid may be coming out from it. Where is this located and can I check/see this without raising the car.
I noticed some oily residue on the left side of my differential and wanted to first check the vent valve since I recently had my fluid changed.
It is not a drip and I don't notice any on my garage floor but seems more like a seep and leaves an oily residue on my fingers when I wipe it?
Thanks,
Rob
I noticed some oily residue on the left side of my differential and wanted to first check the vent valve since I recently had my fluid changed.
It is not a drip and I don't notice any on my garage floor but seems more like a seep and leaves an oily residue on my fingers when I wipe it?
Thanks,
Rob
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
I noticed some oily residue on the left side of my differential and wanted to first check the vent valve since I recently had my fluid changed.
It is not a drip and I don't notice any on my garage floor but seems more like a seep and leaves an oily residue on my fingers when I wipe it?
It is not a drip and I don't notice any on my garage floor but seems more like a seep and leaves an oily residue on my fingers when I wipe it?
Did you do the fluid change? If the back of the vett was jacked to change the fluid without leveling before filling it may have been over serviced. The left side output shaft seal is a known issue along with the left side differential cover o-ring. The vent is very near the top and not easy to see. If you have a digital camera you might be able to take a picture of it by snaking the camera up in the area with one hand and snapping a photo.
Thread Starter
Instructor
Joined: Oct 2008
Posts: 239
Likes: 10
From: Uxbridge Ontario
Hi Rob,
Did you do the fluid change? If the back of the vett was jacked to change the fluid without leveling before filling it may have been over serviced. The left side output shaft seal is a known issue along with the left side differential cover o-ring. The vent is very near the top and not easy to see. If you have a digital camera you might be able to take a picture of it by snaking the camera up in the area with one hand and snapping a photo.
Did you do the fluid change? If the back of the vett was jacked to change the fluid without leveling before filling it may have been over serviced. The left side output shaft seal is a known issue along with the left side differential cover o-ring. The vent is very near the top and not easy to see. If you have a digital camera you might be able to take a picture of it by snaking the camera up in the area with one hand and snapping a photo.
Do think this would be ok?
Tech Contributor
Joined: Dec 1999
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Here is a picture of the vent valve.
If you pull the fill plug and hear a slight vacuum sound, the vent valve is working properly. It lets pressure OUT but not back in, Keeping a slight vacuum on the diff when its sitting idle helps keep it from leaking.
BC
If you pull the fill plug and hear a slight vacuum sound, the vent valve is working properly. It lets pressure OUT but not back in, Keeping a slight vacuum on the diff when its sitting idle helps keep it from leaking.
BC
Thread Starter
Instructor
Joined: Oct 2008
Posts: 239
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From: Uxbridge Ontario
Rob
