ZF5 leaking oil, can't locate the leak - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 01-14-2012, 11:53 PM Thread Starter
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ZF5 leaking oil, can't locate the leak

My transmission is leaking a bit of oil, not much. I'd say a quart every 3 months or so. But it annoys me since my driveway is brand new at home.
It seems the leak is coming from the top, but I can't really tell because everytime I clean the casing, when I check back, oil is everywhere.

Do these trans has a common seal problem?
The truck has a little bit over 500k km on it right now.

1996 Ford F-350
7.3 Powerstroke, manual 5 speeds, 4x4, Crew Cab, Long Bed, Srw, 4.10 gears.
1995 Ford Taurus SHO
V6 3.0L DOHC Yamaha, manual 5 speeds, Eibach springs, Koni struts, Quaife ATB diff, Brembo brakes, K&N filter, solid motor mount, 2x Pionner PIAA 10" subs + JBL GTO 301.1II amp, Cobra CB radio and wilson antenna
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post #2 of 3 Old 01-18-2012, 10:17 AM
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This is a tad labor intensive BUT pull up the carpeting and pull the trans cover plate as well as the shifter. Sounds like the shifter plate area is leaking. A view from the top may help

Trucks and parts............
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post #3 of 3 Old 03-23-2015, 01:48 PM
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I have the same issue, not coming out of shifter. My research indicated it could be the detent plugs located on top just infront of the shifter. I can't find anything on how to access/fix them.

Did you ever figure it out?
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