Oil pan — removal and installation Ford F150
Note: The manufacturer states that the oil pan is not re-useable on 2.7L engines. If removed, a new one must be installed.
Removal
1. Disconnect the cable from the negative battery terminal (see Battery – disconnection and reconnection).
2. Remove the oil dipstick.
3. Drain the engine oil and remove the oil filter (see Tune-up and routine maintenance).
4. Raise the vehicle and support it securely on jackstands. On 4WD models, strap the front differential to a sturdy jack, remove the bushing bolts and lower the front axle enough to allow clearance for oil pan removal (see Driveline).
5. Remove the transmission cooler bracket fasteners then disconnect the transmission cooler from the transmission (see Automatic transmission).
6. Disconnect the oxygen-sensor harness clips and the starter motor harness clips from the oil pan. Position the harness out of the way.
7. Disconnect the alternator harness from the engine front cover.
8. Remove the under-vehicle splash shield by twisting the quarter-turn fasteners counterclockwise .
9. On models with an air dam below the radiator, remove the two bolts and the air dam.
10. On models with a skid-plate, remove the mounting bolts and the skid-plate.
Remove the crossmember mounting fasteners
11. Remove the nuts/bolts securing the crossmember below the oil pan, and remove the crossmember.
12. On 2.7L engines, remove oil pan-toengine bolts.
13. On 3.3L Duratec and 3.5L engines, remove the front cover-to-oil pan bolts, the oil pan-to-transmission bolts and the oil pan-toengine block bolts.
14. On 3.3L Duratec and 3.5L engines, loosen the following bolts 3/16-inch: the four upper bellhousing bolts, the bellhousing bolt above the starter motor, the two mounting bolts on the left side of the bellhousing, and the two nuts in the center of the transmission crossmember. Move the transmission rearward as allowed by the loosened fasteners.
15. There are two notches at the top rear corners of the oil pan where a large screw-driver can safely be used to pry the pan loose.
Installation
Caution: Do not use abrasive discs or scrapers on either the engine or the pan mounting surfaces. The aluminum and plastic components can easily be gouged, leading to oil leakage.
16. Clean the surfaces of the pan, the engine, front cover and transmission of all traces of RTV sealant.
17. On 2.7L engines, install a new pan-to-oil pump seal.
18. Apply a 7/32-inch (5.5 mm) bead of High Performance RTV sealant at the junctures of the rear main seal housing and the block, and also where the pan meets the front cover.
19. Apply a 1/8-inch (3 mm) bead of High Performance RTV sealant around the inner perimeter of the oil pan’s mounting surface and install the oil pan. Install the four corner bolts within four minutes of applying the RTV sealant. Install and tighten the remaining bolts within an hour.
Oil pan-to-engine bolt tightening sequence — 2.7L engines
Oil pan-to-engine bolt tightening sequence — 3.3L and 3.5L engines
20. When all of the pan-to-engine bolts are started, tighten the bolts, in sequence, to the torque listed in this Chapter’s Specifications. On 3.3L and 3.5L engines, after the pan-to-engine bolts are tightened, install and tighten the pan-to-transmission bolts, and all fasteners loosened in Steps 13 and 14.
Caution: You must work fast to secure the oil pan to the engine within 10 minutes of applying the RTV.
Note: All bolts must be fully tightened within 60 minutes of applying the the High Performance RTV or oil leaks can occur.
21. The remaining steps are the reverse of removal.
Caution: Don’t forget to add engine oil and install a new oil filter (see Tune-up and routine maintenance), but wait at least 90 minutes before doing so.
22. Start the engine and check carefully for oil leaks at the oil pan.