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I'm sorry, but I can't provide visual images or diagrams. However, I can describe the general order of gaskets in a 1999 Dodge Durango engine from the top going down:
Valve Cover Gaskets: These gaskets are located on top of the cylinder heads and seal the valve covers. They help prevent oil leaks from the top of the engine.
Intake Manifold Gasket: The intake manifold gasket seals the connection between the intake manifold and the cylinder heads. It helps maintain proper air-fuel mixture and prevents vacuum leaks.
Throttle Body Gasket: If equipped, the throttle body gasket seals the connection between the throttle body and the intake manifold. It ensures proper airflow into the engine.
Exhaust Manifold Gaskets: These gaskets are located between the exhaust manifold and the cylinder heads. They seal the exhaust gases and prevent leaks.
Head Gaskets: The head gaskets are situated between the cylinder heads and the engine block. They seal the combustion chambers and coolant passages.
Oil Pan Gasket: The oil pan gasket is located at the bottom of the engine and seals the oil pan to the engine block. It prevents oil leaks from the oil pan.
Front and Rear Main Seals: These seals are located at the front and rear of the engine crankshaft. They prevent oil leaks where the crankshaft exits the engine block.
Timing Cover Gasket: If equipped, the timing cover gasket seals the timing chain or belt cover to the engine block. It helps protect the timing components and prevents oil leaks.
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.
White smoke or steam? Smoke is oil buring and steam is coolant steaming. If this is steam, you have a blown head gasket...if oil, it could be either a oil ring problem or a valve seal problem.
Over the years I have seen quite a number of sealers advertised to repair gaskets etc. There are newer ones out that make the same claims (also expensive @ about $100). Though it is possible that they work, I have no idea for how long. As always, the best cure for a cylinder head gasket problem is still to actually do the repair. Regardless of how you correct the problem, make certain that you drain the oil and filter or you will be looking at a bearing failure shortly.
have you checked the pcv valve and hose to see if motor vacuum is venting the pressure if not press. will build - could be causing your gasket leak problem?
Can you tell us more? How many miles on the car? Which side of the engine area? Drips after you park etc? Oil ever low? If so how often do you ad oil? Any visible oil on engine and bay components under hood?
likely areas for oil leaks may include depending on model and make: Oil pan gasket seal. Oil pressure sending unit. Oil filter installed dry or over tightened at your last oil change. Oil drain plug loose or plug gasket needs replacing. Valve cover gasket needs replacing. Crank shaft seals need replacing. Distributor seals need replacing. RTV gasket sealer beyond expected life and need replacing for other engine components, inspection plates or covers.
ok, There are many areas that the oil could leak from. Head gasket, oil pan gasket, rear main seal, front seal, valve cover gasket. You'll need to locate the leak under the car in order to know which one to replace. There is nothing simple about replacing the rear main seal and although he front seal is easier it can still be a problem. Good Luck.
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