Dougmore
Junior Member
I purchased my 2014 GT brand spanking new in August 2014. It currently has about 44,000 miles on it. Stock 3.31 limited-slip rear end.
Any idea why a 100% street-driven car would blow oil out the diff vent and what I might do to stop it? If I was tracking the car, I could understand, but it's never been on a drag strip, let alone a road track. I've never done a donut with it. I've never made tire smoke. The tires do break loose frequently, but I don't spin them on and on. I'm an old fart and don't like to buy tires. 44,000 miles and I'm about halfway through my second set.
I took it in twice under warranty for an oil puddle in the garage under the rear diff the first year I had it. It was blowing out the vent tube. I don't remember what they said they did the first time - seems like they just added fluid and asked me if I was tracking the car. The second time, they said they drained and replaced the oil with new oil plus the additive - in case the factory installed the wrong stuff, so they said. No more puddles; I thought all was well.
6 years later, I've never had a single drip from the car on the floor.
When I was running the Boost-a-Pump vacuum line for my blower install last year, I noticed a ton of grease all over the gas tank. It was coming from the diff overflow. I'll bet the Ford "technician" relocated the overflow so it would drip on the gas tank instead of on my floor.
Now it's on the lift for its first oil change since then (less than 2000 miles), and since it's up on my shiny new lift, I decided to check the diff fluid. It's real low. I can't touch it with my pinky.
Any idea why a 100% street-driven car would blow oil out the diff vent and what I might do to stop it? If I was tracking the car, I could understand, but it's never been on a drag strip, let alone a road track. I've never done a donut with it. I've never made tire smoke. The tires do break loose frequently, but I don't spin them on and on. I'm an old fart and don't like to buy tires. 44,000 miles and I'm about halfway through my second set.
I took it in twice under warranty for an oil puddle in the garage under the rear diff the first year I had it. It was blowing out the vent tube. I don't remember what they said they did the first time - seems like they just added fluid and asked me if I was tracking the car. The second time, they said they drained and replaced the oil with new oil plus the additive - in case the factory installed the wrong stuff, so they said. No more puddles; I thought all was well.
6 years later, I've never had a single drip from the car on the floor.
When I was running the Boost-a-Pump vacuum line for my blower install last year, I noticed a ton of grease all over the gas tank. It was coming from the diff overflow. I'll bet the Ford "technician" relocated the overflow so it would drip on the gas tank instead of on my floor.
Now it's on the lift for its first oil change since then (less than 2000 miles), and since it's up on my shiny new lift, I decided to check the diff fluid. It's real low. I can't touch it with my pinky.