Discussion in 'Tech & Repair' started by Doberdude, Aug 9, 2019.
Can anyone tell me the most likely places for a 3rd gen oil leak?
How bad of a leak, and can you tell from where it is leaking?
If the oil is brownish or black, thats likely motor oil. The usual locations are from a bad oil pressure sensor switch. This screws into the back of the block, next to the end of the starter. There can be an oil leak from the gasket between the oil pan and the block. It can be a leak from the rear main seal or the front main seal. Leaks like this are kind of normal if there is a lot of miles on the motor - lie over 100,000.
If the oil is reddish, its likely coming from the bottom of the bell housing. This is the result of the oil seal at the inner end of the torque converter getting pushed out of the housing it fits into.
Another place to look for a leak would be if the level of power steering fluid in the upper reservoir is dropping. The fitting coming out of the power steering pump into the high pressure hose is probably the most common leak location. This section of high pressure hose can be replaced. Tightening the fitting is not likely to help at all. The leak is due to a senile "O" ring inside the pivoting end of the high pressure fitting.
From the front side of the valve cover there can be a slow oil leak. It is because the valve cover may have warped over the years. The oil makes it way down over the exhaust manifold, and would cause a slight aroma of charred oil.
Valve cover and oil pressure switch.
It's an oil leak, not a huge leak. Had this same problem on another 3rd gen, but sold it before I looked for the leak. Want to get it fixed as this is my keeper Escort. Oh yeah, I had the motor rebuild about two years ago, so it is low milage.
Also, if replacing the valve cover gasket, check the valve cover and cylinder head for trueness. I have to use RTV on mine.
Great, thanks for the info and vid!
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