[Z06] Rear Diff Leak?
Thread Starter
Intermediate
Joined: Mar 2013
Posts: 31
Likes: 0
Rear Diff Leak?
Guys,
Someone please help, I have been driving my Z06 on a 100 mile each way round trip every weekend from my main house to my beach house. I notice that when I return and park in the garage I have a stain maybe the size of 3 quarters around in the concrete floor of my garage. When I am parked in the driveway of my other house (no garage) the car is at a slight downward slope (nose lower than rear) I do not notice a stain.
Is it possible the leak is coming out of the vent? Any advice or information would be great. The car is an 03 Z06 with 16k miles that I purchased with 13k miles. I never noticed the leak before when I would drive the car on the weekends, but I was only doing about 30 miles +-.
Thanks for the help!
Erik
Someone please help, I have been driving my Z06 on a 100 mile each way round trip every weekend from my main house to my beach house. I notice that when I return and park in the garage I have a stain maybe the size of 3 quarters around in the concrete floor of my garage. When I am parked in the driveway of my other house (no garage) the car is at a slight downward slope (nose lower than rear) I do not notice a stain.
Is it possible the leak is coming out of the vent? Any advice or information would be great. The car is an 03 Z06 with 16k miles that I purchased with 13k miles. I never noticed the leak before when I would drive the car on the weekends, but I was only doing about 30 miles +-.
Thanks for the help!
Erik
Thread Starter
Intermediate
Joined: Mar 2013
Posts: 31
Likes: 0
Burning Brakes
Joined: Aug 2004
Posts: 1,174
Likes: 125
From: Dunstable MA
St. Jude Donor '05
Take a look at the sides of the differential where the axles attach. It is not unusual to for the seal there to develop a leak (and then to make a general mess around that area). I had to have one of those seals replaced when I bought my '03. Cost me about $500. at the dealership. It was not considered a warranty item.
Thread Starter
Intermediate
Joined: Mar 2013
Posts: 31
Likes: 0
The diagnosis was the drivers side axel seal. I just had it replaced and picked up today. I didn't drive it far yet to really be certain. It must have been leaking longer than I thought as the diff was about a pint low on fluid!
Burning Brakes
Joined: Sep 2009
Posts: 1,084
Likes: 0
From: Huntington Beach California
If it's not leaking all the time than the top side vent is allowing splashed up oil to blow out because it was overfilled either during factory assembly or maintenance by you or the prior owner.
Don't worry about it - believe me you will know if the seal is the problem, don't ask me why I know
Don't worry about it - believe me you will know if the seal is the problem, don't ask me why I know
Racer
Joined: Nov 2005
Posts: 290
Likes: 1
From: naples fl.
High speed driving can cause it to come out the vent. I thought I had an axle seal leak but discovered it was coming out the vent. My seals look a bit dirty but my diff is full. Just had a small amount on the garage floor. Drove it that way for 8 yrs so I know if the seals are leaking its very minimal.
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Melting Slicks
Joined: Jan 2007
Posts: 3,021
Likes: 133
From: Conejo Valley CA
Indeed.... the C5 is notorious for the driver's side differential axle seal to leak. I had to replace mine twice in 7 years. The first time I did it myself and the second time I let a professional do it and also used C6 parts so hopefully it will stick this time.
