Rear main seal leak or something else?

Asked by Mar 23, 2017 at 09:26 PM about the 1999 Ford F-250 Super Duty XL 4WD LB

Question type: Maintenance & Repair

I have a 99 ford f250. It has just under 43000 on it.
5.4 litre. I'm not very good with diagnosing engine
issues. I think the rear main seal is leaking but it
only leaks when I drive. It's not a big leak by any
means. Is there something else that could be
leaking

1 Answer

74,565

If you can live with it then wait until the leak gets worse. You must pull the transmission to fix the rear main seal. I would have a mechanic put it up on the rack and let them look for the leak.

Your Answer

Ford F-250 Super Duty Experts

  • #1
    Tracy Hooks
    Reputation
    860
  • #2
    kbro
    Reputation
    650
  • #3
    Tom Demyan
    Reputation
    640
View All

Related Models For Sale

Used Ford F-350 Super Duty
334 Great Deals out of 23,394 listings starting at $2,990
Used Ford F-150
2,156 Great Deals out of 181,744 listings starting at $1,000
Used Dodge Ram 2500
135 Great Deals out of 5,059 listings starting at $2,999
Used Ford F-250
467 listings starting at $3,490
Used Chevrolet Silverado 1500
2,163 Great Deals out of 181,244 listings starting at $1,900
Used Toyota Tundra
431 Great Deals out of 33,515 listings starting at $1,999
Used GMC Sierra 1500
799 Great Deals out of 67,552 listings starting at $1,350
Used Dodge Ram 3500
88 Great Deals out of 2,165 listings starting at $4,993
Used Dodge Ram 1500
397 Great Deals out of 10,701 listings starting at $1,500
Used Ford F-450 Super Duty
43 Great Deals out of 2,490 listings starting at $8,481
Used Toyota Tacoma
588 Great Deals out of 41,802 listings starting at $2,995

Used Cars For Sale

2017 Ford F-250 Super Duty For Sale
11 Great Deals out of 28,211 listings starting at $20,521
2016 Ford F-250 Super Duty For Sale
19 Great Deals out of 2,095 listings starting at $21,967
2015 Ford F-250 Super Duty For Sale
21 Great Deals out of 1,942 listings starting at $12,995
2014 Ford F-250 Super Duty For Sale
13 Great Deals out of 864 listings starting at $12,950
2013 Ford F-250 Super Duty For Sale
22 Great Deals out of 803 listings starting at $9,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.