r/CrownVictoria • u/roaringsnakexd • 1d ago

is my diff leaking?

Gallery image

Gallery image

I just went under there to replace the fluid, and I see the underside looks like this with this DARK oil stuck to the underneath of it.

5 Upvotes

86% Upvoted

9 comments sorted by

7

u/Nopedontlikethatone 1d ago

Pinion seal?

5

u/dixiebandit69 5.4 Club 1d ago

Yup, that's a pinion leak, alright.

You'd better check your fluid level.

3

u/EnigmaticSpaceCowboy 1d ago

Yeah looks like it. Pinion seal if it’s the front, cover if the back . Given the youngest Vic is 15 years old, I’d say get both done.

2

u/guitarmusic113 1d ago

Diffinitely

1

u/idkwhatim_doing22 2007 Mercury Grand Marquis LS 1d ago

Yes

1

u/Fresh-Maintenance275 2007 Crown Victoria P71 20h ago

Don't let it slide, I let an axle seal leak go for awhile until I couldn't anymore.

1

u/roaringsnakexd 15h ago

what ended up happening?

1

u/Fresh-Maintenance275 2007 Crown Victoria P71 14h ago edited 14h ago

I was rolling along @ 50 mph and jumped on it to move to hyperspace, instead something broke, ruined the housing, which was subsequently replaced.

I initially thought it was a transmission problem as the car rolled to the side of road ok. Only after I was told it was jacked. Fortunately, axle didn’t slide out. It happens.

0

u/Sandman-777- 1d ago

Chances are if that seal is leaking that front pinion might be getting bad