OIL LEVEL CHECK
See Figures 1, 2 and 3
Check the engine oil level every time you fill the gas tank. Make sure the oil level is between the FULL and ADD marks on the engine oil level dipstick. The engine and oil must be warm and the vehicle parked on level ground to get an accurate reading. Also, allow a few minutes after turning off the engine for the oil to drain back into the pan before checking, or an inaccurate reading will result. Check the engine oil level as follows:
- Open the hood and locate the engine oil dipstick.
- If the engine is hot, you may want to wrap a rag around the dipstick handle before removing it.
- Remove the dipstick and wipe it with a clean, lint-free rag, then reinsert it into the dipstick tube. Make sure it is inserted all the way or an inaccurate reading will result.
- Pull out the dipstick and note the oil level. The correct should be between the ADD and FULL marks.
- If the oil level is below the ADD mark, remove the oil filler cap from the rocker arm cover and add fresh oil to bring the level within the proper range. Do not overfill; approximately 1 quart of oil is required to raise the oil level from the ADD mark to the FULL mark.
Using a funnel when adding oil helps prevent spillage.
- Wait a few minutes for the oil to drain into the pan and recheck the oil level. Add more oil only if required.
- Install the oil filler cap. Install the dipstick, making sure it is fully inserted into the dipstick tube. Close the hood.
OIL AND FILTER CHANGE
See Figures 4, 5, 6, 7 and 8
The engine oil and oil filter should be changed at the recommended intervals on the Maintenance Intervals chart. The oil should be changed more frequently if the vehicle is being operated in very dusty areas. Before draining the oil, make sure the engine is at operating temperature. Hot oil will hold more impurities in suspension and will flow better, allowing the removal of more oil and dirt.
Change the oil and filter as follows:
- Apply the parking brake and block the drive wheels.
- Run the engine until it reaches the normal operating temperature, then turn the engine OFF .
- Raise and safely support the front of the car on jackstands. Refer to the Jacking portion in this section.
- Slide a drain pan under the oil pan drain plug. Vehicles equipped with 5.0L or 5.8L engines, have 2 oil drain plugs on the oil pan; both must be removed.
- Wipe the drain plug and the surrounding area clean. Loosen the drain plug with a socket or box wrench, and then remove it by hand, using a rag to shield your fingers from the heat. Push in on the plug as you turn it out, so that no oil escapes until the plug is completely removed.
- Allow the oil to drain into the pan. Be careful; if the engine is at operating temperature, the oil is hot enough to burn you.
- Clean and install the drain plug, making sure that the gasket is still on the plug. If the gasket is missing or damaged, install a new one. Tighten the drain plugs on 5.0L and 5.8L engines to 15-25 ft. lbs. (20-34 Nm). Tighten the drain plug on all other engines to 8-12 ft. lbs. (11-16 Nm).
- Slide the drain pan under the oil filter. Slip an oil filter wrench onto the filter and turn it counterclockwise to loosen it. Wrap a rag around the filter and unscrew it the rest of the way. Be careful of oil running down the side of the filter.
- Make sure the old oil filter gasket is not stuck on the cylinder block or oil filter adapter. Thoroughly clean the sealing surface and mounting threads on the cylinder block or adapter.
- Coat the rubber gasket on the replacement filter with clean engine oil. Place the filter in position and screw it on clockwise by hand. After the rubber gasket contacts the sealing surface, tighten the filter according to the specifications supplied with the filter.
- Pull the drain pan from under the vehicle and lower the vehicle to the ground.
- Remove the oil filler cap from the rocker arm cover and place a funnel in the oil filler hole. Fill the crankcase with the quantity of oil specified in the Capacities chart at the end of this section.
- Remove the funnel and install the oil filler cap. Be sure to wipe away any spilled oil.
- Start the engine and let it run until normal operating temperature is reached.
- Turn the engine OFF . Check for oil leaks at the drain plug(s) and oil filter. Check the oil level, and add oil if necessary.