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Dear Sir, Here is the oil leaking Problem Identifying Technique
Engine oil leaks from the valve cover gasket are common.
The intake manifold plenum gasket may leak and cause increased oil consumption/burning and a spark knock during acceleration; the gasket should be replaced.
External oil leaks from valve cover gaskets, intake gaskets (front or rear), and the rear crankshaft (rear main) seal area are common. The rear main seal is an unlikely source. Normally, the bearing cap mating surfaces (as well as the sealing surface between the oil pan and bearing cap) are the source for the leaks.
If the oil filter casing shows signs of distortion from excessive oil pressure, theoil pump should be replaced.
Often misdiagnosed as a leaking oil filter gasket, the oil filter adapter can seep from between the adapter and engine block.
Carbon buildup on the top of the piston is common. As the buildup increases with mileage and over time, symptoms may vary from light ticking, to ticking/hammering, to hammering/knocking noises. Fuel injector cleaner often solves the problem.
There are three other area's that can leak, here they are in order of how often they occur
1.Engine Valve cover gasket(s) (2 if V6 engine), oil runs down the engine and drips off the pan.
2.Rear crankshaft seal leaking
3.Front crankshaft seal leaking. Oil is blown back by air pressure while driving and rips off of pan.
The Chrysler minivan products all had leaking problems. I have had 5 or 6 different Dodge or Plymouth minivans from 88 to 99. How bad is it. The most common thing is Valve cover leaks. Front and rear seals in the engine leak as well as the oil pan gasket. If its leaking a little bit at a time open the hood and look at the front and rear of the engine. Do you see grease and oil that has gone down the sides of the engine? Do you see a lot of grease on the engine with some clean streaks going through it. You may be able to see where its leaking from. If you know someone that knows what their doing have them change the leaky gasket/s. If not you can probably have it repaired for less than buying another van unless other things are seriously wrong with the van.
Hope this helps... Dale
HI. This may be a oil pan gasket issue. The gasket is facing downward towards the ground, so the leaking oil in this area would not necessarily touch the enigne block. It would actually run down the sides of the bottom section of the oil pan and the rim areas. Also; make sure that it is indeed engien oil. It may be transmission fluid or power sterring fluid, as well. Raise the vehicle or slide under the frame to take a closer look at the oil and transmissin pans to locate the actual leak point.
In most cases of this nature, it will be either the transmission pan gasket or oil pan gasket that will be the culprit.
the best way to attack an oil leak like this is to have the engine steam cleaned of all oil top and bottom and then drive it for about 20 miles and look up top and bottom of engine for the source of the leak, your leak could be the valve cover, the pan gasket or the crankshaft rear main seal or a combination of all three, reember the oil runs back and down, so where the oil drips on the ground is not always where the oil is leaking from
Take the car to a car wash and power wash the engine. Do this ONLY with a cold engine. And be prepared to have problems with it starting as water get's into the electrical components. Take some WD-40 with you to spray inside distributor caps, on spark wiring, etc. to get the engine running again.
Then check the engine weekly to see where the oil is coming from.