1st Gen Durango 1998 - 2003 Durango's

2000 4.7L Durango front main seal leak?

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Old Feb 22, 2025 | 04:13 PM
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Rob94hawk
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Default Update: 2000 4.7L Durango oil leak! What line is this?! Video!

Update: Found the leak but is this an oil cooler line that is leaking in the video!?


I have oil all over the bottom of the engine. From front to back.

Would it be appropriate to conclude it's a front main seal leak?

Just cleaned out the PCV valve since Dodge discontinued the part and the one from Autozone doesn't fit.
Changed the old oil filter.
My next move will be to change the crank case breather.

Trying to keep this beast alive!
231,000 miles
 

Last edited by Rob94hawk; Feb 22, 2025 at 07:07 PM. Reason: Video update
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Old Feb 22, 2025 | 08:37 PM
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Is it oil, or is it trans fluid? Those lines are rather rusty...... Wouldn't surprise me if it didn't break right under that clamp.
 
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Old Feb 22, 2025 | 08:49 PM
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Originally Posted by HeyYou
Is it oil, or is it trans fluid? Those lines are rather rusty...... Wouldn't surprise me if it didn't break right under that clamp.
I'm starting to believe that it's a transmission fluid cooler line. I don't think the 4.7's came with an oil cooler. Still trying to figure if it did.
 
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