Tranny Fluid Puddle
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Junior User
Joined: Feb 2005
Posts: 66
Likes: 2
From: Surrey, BC
Tranny Fluid Puddle
I went away for a month and when I came back home there was a large puddle of trans fluid under the truck, probably a liter. It wasn't leaking before I left when I was driving it everyday. I checked the trans pan, dipstick base and it doesn't appear to be coming from either of those locations. I removed the inspection cover and there is a puddle in the bell housing under the torque converter and flexplate. Any ideas why this wouldn't leak when driving, but then would after sitting for a month?
Lead Driver
Joined: Oct 2004
Posts: 8,062
Likes: 35
From: Central Oregon
I had this problem with a 64 Galixie, and was told that on some of these old auto's that sit for awhile that the torque convertor would drain back into the pan and then out the overflow. Just have to start it once and while. Did it when sitting over the winter.
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Junior User
Joined: Feb 2005
Posts: 66
Likes: 2
From: Surrey, BC
Topped up the fluid and drove it the last couple days without any leaks. Should this leak occur normally? or is indicating a worn seal or some other type of failure?
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Laughing Gas
Joined: Oct 2001
Posts: 957
Likes: 3
From: Winchendon MA
If its at the bell-housing it's a worn seal leaking due to drain back.
But if you fix the seal it will still drain back and then mite leak out the dip stick hole.
Catch 22
44
But if you fix the seal it will still drain back and then mite leak out the dip stick hole.
Catch 22
44
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Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
When it happened to me, it was a fairly new rebuild. I used to keep the truck indoors and let it sit for days or weeks without driving it. I drive it a lot more now, it has 27,000 miles on the rebuild and I don't notice any puddeling if it sits a couple of weeks.
John
John
Senior User
Joined: Sep 2004
Posts: 187
Likes: 0
From: Lincoln, NE
Similar subject, different problem: Mine leaks out of the speedo cable. It's a 65 COM, so it's got the steel gear, not the plastic one. Is there supposed to be an O ring or something that sits down inside that cable or perhaps around the shaft on the gear?
Lead Driver
Joined: Oct 2004
Posts: 8,062
Likes: 35
From: Central Oregon
Originally Posted by nealjpage
Similar subject, different problem: Mine leaks out of the speedo cable. It's a 65 COM, so it's got the steel gear, not the plastic one. Is there supposed to be an O ring or something that sits down inside that cable or perhaps around the shaft on the gear?
Posting Guru
Joined: Jul 2003
Posts: 2,232
Likes: 1
From: Colville, Washington
I just rebuilt a C4, the speedo gear seal should? be the same. I believe it was a number 113 or 115 o-ring. One fits the speedo gear seal, the other fits the dipstick tube. I just don't remember which is which!! 
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Neal, Something else might be afoot. I would think you should be able to pull the speedo cable without any fluid leaking. By it's design the fluid could follow the cable to the head and drip on your shoes if it was allowed to do that.
My O
John
My O
John