Ford Pick-Ups/Bronco 1976-1986 Repair Guide




See Figure 1

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Fig. Fig. 1: Engine oil dipstick on a the 8-302

Check the engine oil level every time you fill the gas tank. The oil level should be above the ADD mark and not above the FULL mark on the dipstick. Make sure that the dipstick is inserted into the crankcase as far as possible and that the vehicle is resting on level ground. Also, allow a few minutes after turning off the engine for the oil to drain into the pan or an inaccurate reading will result.

  1. Open the hood and remove the engine oil dipstick.
  3. Wipe the dipstick with a clean, lint-free rag and reinsert it. Be sure to insert it all the way.
  5. Pull out the dipstick and note the oil level. It should be between the SAFE (MAX) mark and the ADD (MIN) mark.
  7. If the level is below the lower mark, replace the dipstick and add fresh oil to bring the level within the proper range. Do not overfill.
  9. Recheck the oil level and close the hood.

Use a multi-grade oil with API classification SF.


See Figures 2, 3, 4, 5 and 6

The engine oil and oil filter should be changed at the same time, at the recommended intervals on the maintenance schedule chart.

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Fig. Fig. 2: Loosen, but do not remove, the drain plug on the bottom of the oil pan. Get your drain pan ready.

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Fig. Fig. 3: Unscrew the plug by hand. Keep an inward pressure on the plug as you unscrew it so the oil won't escape until you pull it away.

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Fig. Fig. 4: Move the drain pan underneath the oil filter. Use a strap wrench to remove the filter - remember it is filled with hot, dirty oil.

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Fig. Fig. 5: Wipe clean engine oil around the rubber gasket of the new filter. This helps to ensure a good seal.

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Fig. Fig. 6: Install the new filter by hand only; DO NOT use a strap wrench to install.

The oil should be changed more frequently if the vehicle is being operated in very dusty areas. Before draining the oil, make sure that 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.

Loosen the drain plug with a wrench, then, unscrew the plug with your fingers, using a rag to shield your fingers from the heat. Push in on the plug as you unscrew it so you can feel when all of the screw threads are out of the hole. You can then remove the plug quickly with the minimum amount of oil running down your arm and you will also have the plug in your hand and not in the bottom of a pan of hot oil. Drain the oil into a suitable receptacle. Be careful of the oil. If it is at operating temperatures it is hot enough to burn you.

The oil filter is located on the left side of all the engines installed in Ford trucks. It should be changed every time the oil is changed. To remove the filter, you may need an oil filter wrench since the filter may have been fitted too tightly and the heat from the engine may have made it even tighter. A filter wrench can be obtained at an auto parts store and is well worth the investment, since it will save you a lot of grief. Loosen the filter with the filter wrench. With a rag wrapped around the filter, unscrew the filter from the boss on the side of the engine. Be careful of hot oil that will run down the side of the filter. Make sure that you have a pan under the filter before you start to remove it from the engine; should some of the hot oil happen to get on you, you will have a place to dump the filter in a hurry. Wipe the base of the mounting boss with a clean, dry cloth. When you install the new filter, smear a small amount of oil on the gasket with your finger, just enough to coat the entire surface, where it comes in contact with the mounting plate. When you tighten the filter, rotate it only a half turn after it comes in contact with the mounting boss.

Before installing the oil pan drain plug, clean the threads and wrap them with Teflon® tape. DO NOT OVERTIGHTEN THE DRAIN PLUG! Overtightening will strip the threads in the pan. The drain plug torque is 20-25 ft. lbs.