I have a 1998 chevy malibu 2.4L I start the engine everything sounds fine. But oil is leaking from the top end of motor, I can see oil up high on the engine, and only in the back side,closest to the fire wall. I did remove the cover on top of engine and noticed some oil in the counter bore of each spark plug location but not enough to justify this is the source. The twin ohc gasket lines look dry. It seems its leaking from rear side of engine. Any input on this matter would be appreciated. Thanks Ruben

SOURCE: how to replace valve cover gasket 1998 chevy malibu

The first step is to remove all the parts that are in the way of you being able to remove the valve covers. (Ex.: air intake, loose wires etc.) Then you will need to remove your valve covers (using basic tools) and be very careful to not let anything get on your lifters, which your valve covers protect. Once you have the valve covers off compare the new gaskets to make sure they are the right size. Then remove the old gasket and replace with the new one using a high temp gasket sealant (available at any auto parts store) to attach the gasket to the valve covers. Then tighten down snug and check for leaks after replaced. 

SOURCE: 1999ford explorer,4l.single,OHC looking to findspeedometer sensor

Its on the back of the gearbox where the output shaft is.

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SOURCE: replacing spark plugs on a 2004 chevy malibu

2.2L Engine

1. Observe the following service precautions:
   
   Allow the engine to cool before removing the spark plugs. Attempting to remove spark plugs from a hot engine can cause the spark plugs to seize. This can damage the cylinder head threads. Clean the spark plug recess area before removing the spark plug. Failure to do so can result in engine damage due to dirt or foreign material entering the cylinder head, or in contamination of the cylinder head threads. Contaminated threads may prevent proper seating of the new spark plug. Use only the spark plugs specified for use in the vehicle. Do not install spark plugs that are either hotter or colder than those specified for the vehicle. Installing spark plugs of another type can severely damage the engine.
   
2. Turn the ignition OFF .
3. Disconnect the Electronic Ignition (EI) module harness connector.
4. Remove the spark plugs using a 5 / 8 inch spark plug socket.

1. Inspect the gap on the new spark plugs, re-gap the plugs as required. The spark plug gap specification is 42 inch. (1.0 mm).
2. Install the spark plugs and tighten to 15 ft. lbs. (20 Nm).
3. Apply dielectric compound to the spark plug boots and make sure no corrosion is present.
4. Install the ignition coil housing to cam cover and attachment bolts.
5. Tighten the ignition coil housing bolts to 89 inch. lbs. (10 Nm).
6. Connect the EI module harness connector. Push in until a click is heard and pull back to confirm a positive engagement.

Testimonial: "Thanks for the help, it was easy to change out the plugs with your info."

SOURCE: How to change spark plugs of Chevy cavalier 2002

for the most part they are in between the fuel injector the best thing for you to do is stop by your local GM dealership in the part department and they be able to print you off the pictures and diagrams you need if all fails stop by your local library and get your hands on a Haynes auto repair manual for your car Merry Christmas and Happy New Year as always wish you the best of luck Michigan Man.

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