Removal & Installation
4.6L & 5.4L Engine
- Before servicing the vehicle, refer to the Precautions Section.
- Disconnect the battery ground cable.
- Remove the valve covers.
- Remove the radiator.
- Disconnect the camshaft position sensor.
- Remove the water pump.
Raise and safely support the vehicle.
NOTEOnly three bolts are required to secure the power steering pump.
- Remove the power steering pump bolts and position the power steering pump aside.
- Disconnect the crankshaft position (CKP) sensor electrical connector.
- Remove the drain plug and drain the engine oil.
Remove the four front oil pan bolts.
- Remove the crankshaft front seal.
- Lower the vehicle.
Remove the engine front cover fasteners.
- Remove the engine front cover from the front cover-to-cylinder block dowels.
Remove the crankshaft sensor ring from the crankshaft.
WARNINGUnless otherwise instructed, at no time when the timing chains are removed and the cylinders heads are installed is the crankshaft or camshaft to be rotated. Severe piston and valve damage will occur.
Use the Crankshaft Holding Tool to position the crankshaft as shown.
Install the Camshaft Holding Tools on the camshafts.
Remove the timing chain tensioner bolts and the timing chain tensioners. Remove the timing chain tensioner guides from the dowel pins.
- Remove the LH and RH timing chains and the crankshaft sprockets.
Remove the timing chain guides.
- Remove the timing chain guide bolts.
- Remove the timing chain guides.
Compress the tensioner plunger, using an edge of a vise.
Using a small screwdriver or pick, push back and hold the ratchet mechanism.
- While holding the ratchet mechanism, push the ratchet arm back into the tensioner housing.
Install a paper clip into the hole in the tensioner housing to hold the ratchet assembly and plunger in during installation.
If copper links are not visible, mark two links on one end and one link on the other end, and use as timing marks.
- Loosely install the Camshaft Holding Tools on both camshafts.
Install the timing chain guides.
Position the crankshaft with the Crankshaft Holding Tool, and remove the tool.
Install the inner crankshaft sprockets as shown.
Install the timing chains.
NOTEBe sure the upper half of the timing chain is below the tensioner guide dowel. If necessary, use the Camshaft Positioning Tool to adjust.
Install the LH (inner) timing chain on the crankshaft sprocket, aligning the copper (marked) link with the dot on the crankshaft sprocket.
Install the timing chain on the camshaft sprocket with the two chain links and timing marks aligned.
While maintaining the timing chain position, tighten the Camshaft Holding Tool.
WARNINGThe camshaft sprocket can jump time if the Camshaft Holding Tool is not secured.
NOTEBe sure the chain link and crankshaft sprocket timing marks are aligned.
NOTEThe lower half of the timing chain must be positioned above the dowel.
Install the outer crankshaft sprocket and timing chain with the long hub of the crankshaft sprocket facing inward.
- Position the timing chain on the camshaft sprocket. Make sure the two copper-colored links align with the camshaft sprocket timing mark.
Position the LH and RH timing chain tensioner guides on the dowel pins. Position the timing chain tensioners and install the timing chain tensioner bolts.
- Remove the retaining pins from the RH and LH timing chain tensioners.
- Remove the Camshaft Holding Tools from the camshafts.
Check for proper alignment of all timing marks.
Install the crankshaft sensor ring on the crankshaft.
NOTEIf not secured within 4 minutes, sealant must be removed and the sealing area cleaned with solvent. Allow to dry until there is no sign of wetness, or 4 minutes, whichever is longer. Failure to follow this procedure can cause future oil leakage.
Apply a bead of silicone along the head-to-block surface and the oil pan-to-block surface.
NOTEUse Silicone Gasket and Sealant F6AZ-19562-A or equivalent meeting Ford specification WSE-M4G323-A6.
- Install a new engine front cover gasket on the engine front cover, then position the engine front cover on the front cover-to-cylinder block dowels.
- Loosely install the engine front cover fastener.
- For 1998 4.6L engines, torque all fasteners to 25 Nm (18 ft. lbs.).
For 1998-01 5.4L engines, tighten the front cover fasteners, in two stages, in the sequence shown.
Step 1: Fasteners 1 through 5: 25 Nm (18 ft. lbs.)
F0r 1999-01 4.6L engines, tighten the engine front cover fasteners in two stages following the sequence shown.
NOTEBe sure to tighten the oil pan bolts in two stages.
Stage 1: Tighten fasteners 1 through 7 to 20-30 Nm (15-22 ft. lbs.)
Tighten the four front oil pan bolts in the sequence shown.
Stage 1: 20 Nm (15 ft. lbs.)
- Connect the CKP sensor electrical connector.
- Install the power steering bolts.
- Lower the vehicle.
- Install the water pump.
- Connect the CMP electrical connector.
- Raise and support the vehicle.
- Install a new crankshaft front seal and the crankshaft pulley.
- Lower the vehicle.
- Install the valve covers.
- Install the radiator and fill the cooling system.
Install the engine air cleaner and the air cleaner outlet tube.
NOTEWhen the battery has been disconnected and reconnected, some abnormal drive symptoms may occur while the powertrain control module relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy.
- Reconnect the battery ground cable.
- Fill the engine with oil.