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[C2] Leaking C2

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Old Nov 16, 2021 | 03:10 PM
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Default Leaking C2

My C2 leaks under the middle of the car but I cannot seem to find it. Any ideas?
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Old Nov 16, 2021 | 03:12 PM
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What type of fluid? Motor oil, transmission fluid, brake fluid, ac condensate?b
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Old Nov 16, 2021 | 03:47 PM
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there is nothing at the middle of the car with fluid in it except the back end of the transmission. So, I will guess it's trans fluid leaking from the trans rear seal.
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Old Nov 16, 2021 | 03:53 PM
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Originally Posted by kingwoodvette
What type of fluid? Motor oil, transmission fluid, brake fluid, ac condensate?b
First things first: Give it the smell test.
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Old Nov 16, 2021 | 04:09 PM
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Appears to be lighter weight than oil. I've checked the radiator connections and the manifold neck for leaks. None. I've checked around the distributor, valve covers, and oil cannister. Nothing. But when I drive it and let it set leaks show up on the garage floor.
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Old Nov 16, 2021 | 04:15 PM
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Originally Posted by 65hihp
there is nothing at the middle of the car with fluid in it except the back end of the transmission. So, I will guess it's trans fluid leaking from the trans rear seal.
Or the mid plate on the trans.
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Old Nov 16, 2021 | 05:17 PM
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Let's try to narrow this down.

When you say middle, do you mean middle right to left? And also middle front to rear? About where front-to-rear is the drip?

What transmission do you have? Manual fluid is very different from automatic fluid. The latter should be obvious if that's the case.

Manual transmission oil is usually heavier weight than engine oil. So your comment that it seems lighter that engine oil would seem to rule out the transmission.

What color coolant are you running? Assuming it's green or orange, and of sufficient concentration, that should also be obvious.

If it's just water or condensate, it should evaporate pretty quickly. Does that happen?

Which leads me to brake fluid. While that shouldn't drip in the center of the car, drips have a way of flowing quite a ways. It could run down the firewall and drip somewhere near the transmission, picking up some color along the way. I would look very carefully around the MC and the brake lines. That's one leak you don't want to let fester.

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Old Nov 16, 2021 | 06:55 PM
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Check your freeze plugs too....
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Old Nov 16, 2021 | 10:56 PM
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Look under the hood at the base of the vent tube . Oil can leak down the middle from there.
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Old Nov 17, 2021 | 12:17 AM
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What engine and tranny in your C2?
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Old Nov 17, 2021 | 12:54 AM
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Old Nov 17, 2021 | 07:03 AM
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Do you have AC?
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Old Nov 17, 2021 | 07:49 AM
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Put a piece of card board under the car, take a pick and lets see what it is.
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Old Nov 17, 2021 | 08:15 AM
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Originally Posted by Duck916
Let's try to narrow this down. [ etc ]
Good, logical post!

Originally Posted by Bowtyeguy
Put a piece of card board under the car, take a pick and lets see what it is.
A standard first step when trying to pinpoint a leak problem.

How much fluid, and how long does it take to show up? Another question would be does it leak X amount when you return from a drive, and then stop, or does the leak continue for as long as the car sits there?
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Old Nov 17, 2021 | 08:37 AM
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Have to determine just WHAT it is that's leaking.
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Old Nov 17, 2021 | 08:50 AM
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Sounds like middle of the car means centerline but under the engine. One idea is to wash the engine down, blow it dry and dust the block with baby powder to help trace the leak path.
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Old Nov 17, 2021 | 09:57 AM
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find a lift
a friend, a shop, whatever....
guessing from a seated position is never as good as getting a flashlight and putting your eyes on it
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