Date: Mon, 15 Nov 1999 22:35:06 -0800
Reply-To: harald_nancy <harald_nancy@EARTHLINK.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: harald_nancy <harald_nancy@EARTHLINK.NET>
Subject: Re: Mechanical Challenge
Content-Type: text/plain; charset=ISO-8859-1
Thomas,
Apparently, the most common problem with the
auto trannys is the pinion shaft seals failing.
When that happens, the auto tranny pumps
ATF into the differential section of the final drive.
That is easily detectable by checking the
fluid compostion in your final drive.
But that doesn't sound like your problem.
Your problem sounds like a clogged vent, but
I never noticed a vent on the auto tranny.
Only the dipstick/filler tube opening, which I assume
also acts as a vent, but obviously that's not clogged up.
There are 2 vents on the final drive, but they won't affect the
auto tranny part.
I was wondering, how can you get a precise reading on the dipstick,
if the ATF keeps backing up when the engine is running?
Or is the ATF backing up only when you are driving?
I would assume some broken seal inside.
But before I would have it taken apart, I would drain all
the ATF once more, and refill it with 3 liters (or 5.3 pints) of ATF.
To make sure it is not overfilled.
Remember there is a total capacity of 6 liters (or 10.6 pints)
in the auto tranny and the torque converter,
but when you change the fluid, 3 liters stay in it.
Good luck.
Harald
'90 auto westy
Thomas Czerniak wrote:
> I posted this question about a week back. Got one
> reply asking me what I had obiovously stated was
> the case in the question . Lets try again!
> Is there anyone on this list who actually has
> working knowledge of Automatic transaxles and the
> Vanagon trans axle in particular? If so ,has
> anyone ever had a problem with tranny fluid
> backing up out of the filler tube. The vehicle is
> an 1985 Vanagon Westy . Fluid levels are correct,
> being checked at operating temperature with the
> engine running. Fluid and filter screen have been
> changed. This problem happened before the change
> and still happens. Only need to drive a small
> distance to make it happen. Anyone have any idea
> what is going on? Any insight would be
> appreciated. Thanks!
> Tom Czerniak
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