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Skyvisions
Skyvisions, ASE Certified Technician
Category: Lexus
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Experience:  Lexus Expert
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1998 GS300: oil leak..engine area..It is not transmission fluid

Customer Question

Just purchased a 1998 GS300. It has a significant oil leak coming from rear of engine area. It is not transmission fluid. Could it be rear main? Is this a major job?
Submitted: 4 years ago.
Category: Lexus
Expert:  Skyvisions replied 4 years ago.

The 3.0 is notorious for valve cover leaks. This runs down the back of the block and looks like rear main leak at the bottom of the bell housing. I would have the valve cover gaskets replaced then clean and recheck for the rear main seal after you put dye in the oil. If the rear main is leaking the trans has to be pulled. The labor time on this is about 6 to 8 hours times your local rate.

 

Skyvisions

Skyvisions, ASE Certified Technician
Category: Lexus
Satisfied Customers: 13188
Experience: Lexus Expert
Skyvisions and 4 other Lexus Specialists are ready to help you
Customer: replied 4 years ago.
Valve cover gaskets are usually easy. Are they on this one?
Expert:  Skyvisions replied 4 years ago.

These are not the easiest to do but compared to a rear main seal it is easy. The intake runner tube/housing has to be removed to get to the covers.

 

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