95 12 valve 2500 2wd with 218k. Have an oil leak on left side of engine under the injection pump. Can't tell where it is comming from. Previous owner said it was a headgasket leak. Not loosing any coolant at all so i am not sure it would be a head gasket. It was low two quarts of oil and before i added the oil the leak had stopped. Once I added the oil it started to leak. Is there a plug under the injection pump that may have backed out. Thanks in advance. Wonderful site with some very knowledgable people.

 

I would check you vaccum pump gaskets or possibly the vac. pump rear seal.

 

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The leak is above the vacuum pump. i can see oil running down the side of the block but i cant see up behind the injection pump.

 

theres this plate that bolts to the side of the block by the injection pump. there prone to leaking and are a bitch to fix. someone with more knowledge and the name of it will chime in soon

 

Or the oil line to the Injection pump

 

i had the side cover gasket leak on mine. not too hard to fix if you know how to pull the pump off.

 

I did mine as well. I've been told it's possible to do without pulling the pump off, but it looked at lot easier to pull the pump to me so I did.

 

That's probably the leak. Thanks guys for the advice.