Rear Main Seal Leak?

[vpetersen]

So I was under my truck today and noticed the trans oil pan was covered in engine oil. My truck (97 4wd 4.0 ohv) has been loosing oil for a while now but I haven't been able to locate where its coming from. So where would engine oil come from that would make it end up on the trans oil pan? I don't see any oil anywhere else except maybe a very very small dribble out of the driver side valve cover near the firewall, but I can see that and its not going down the back of the engine onto the trans.

 

[97RangerXLT]

It still might be valve covers or the lower intake. If it is a minor leak try putting a seal conditioning oil additive in the crank. I fixed a minor rear main seal leak on mine this year bu doing this. I will look at the brand when i get home. Beats pulling the tranny or engine...

AJ

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[daniel3507]

It still might be valve covers or the lower intake. If it is a minor leak try putting a seal conditioning oil additive in the crank. I fixed a minor rear main seal leak on mine this year bu doing this. I will look at the brand when i get home. Beats pulling the tranny or engine...

AJ

Sent from my DROIDX using Tapatalk 2

Ever find out what brand? I'm pretty sure I have a rear main seal leak and was planning on fixing it in a couple weeks. Mine has oil right at the back of the motor on the oil pan.

 

[97RangerXLT]

sorry about that, I forgot to take a look the other day.

Anyways, here it is:
Bar's Leaks Engine Oil Stop Leak concentrate.

comes in an 11 FL. OZ bottle, you can get it at Walmart.

Barcode #46087 01010

AJ

 

[97RangerXLT]

my leak was minor, but one bottle of that in the crank case had it buttoned up within a week or so. (about 100 miles of driving).

STP and Marvel make a similar product. it is pure petroleum based, no gunk to clog up ports. it softens the seals and makes them seal again.

AJ