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Can you send me a blow up picture of my engine v-6 3.0 front wheel drive of my timing chain section in particular for me too see why my engine or if it is my oil leak according to my mechanic. That will cost me 900.00 in repair cost I already changed my main seal ,127.000mi.on engine thanks

Main seal, is that the crankshaft seal in the timing cover? You may have bolts going through the block into an oil passage, the valve cover gaskets, a cracked timing cover, oil pump oring and others. First step is to clean everything very well, take for test drive and inspect for leaks, may leak immedietly or take many miles, you will see how far you need to drive to see a leak meaning you may need to clean it again and drive a shorter distance next time if bad leak. It may not be coming from the timing cover??