164K miles and leaking oil. Suggestions please!

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Old 10-22-14, 05:01 AM
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164K miles and leaking oil. Suggestions please!

OMG.... These forums are excellent!!!!!


My wife's '98 Lumina with a 3.1 engine is leaking oil...... we thought it was the rear main seal, but after reading this, I went and checked..... when the car is running, there is a stream of fresh oil coming from that plug!!!!!

*whew*!!!!!!! cheap easy repair vs. expensive time consuming repair...... I'll give it a go!!!! Does anyone know what size o-ring it takes? I'll have to drive the car to get the o-ring, that's why I ask.

Last edited by lawrosa; 10-22-14 at 12:49 PM.
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Old 10-22-14, 05:40 AM
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Best bet would be to call one of the parts houses and have them look it up. I don't know if the dummy shaft o-ring on a distributorless would be same as for a distributor, but the distributor one is an easy look up:

Chevy Lumina Distributor O-Ring - Free Shipping - Dorman, Felpro
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