Quote:
Originally Posted by Bruce Bonds
My brother and I are trying to locate a fuel leak in his '99 E300D. The car was parked overnight on an incline with the nose downhill, and a spot of fuel about 18 in. diameter formed under the engine. Fuel had evidently accumulated and spilled from the protective plate because of the incline. It is very difficult to see where the leak originates and he is going to remove the washer reservoir for a better look.
It looks as if the leak is in the area of the clear fuel lines above the IP. My questions are:
Is this a common place for leaks?
Do these lines get brittle and crack?
One thread said that the O-rings where these lines attach are a common problem. How difficult is it to replace the O-rings without removing the aluminum manifold?
Is there another place around the IP that is prone to leak?
Thanks,
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You should also check the top of the IP around the area of the delivery valves. I had a leak similar to yours, and it turned out to be in that area. I had to replace the "O" rings and crush washers. The leak would occur while the engine was running, but was so slight that it would run along the top of the IP, and then drip into the belly pan below. It would collect there, and if the car was parked at an angle like yours, I would end up with a small sized leak under the car. You can use brake cleaner, or carb. cleaner, spray the top of the IP, and wipe it dry. Then start your engine, and watch carefully for leaks around the delivery valve area. Mine was so slight, that it was hard to see, and I had to tell by running my finger along the top of the IP. Good luck!