Ford 2003 Mustang Workshop Manual page 844

intake manifold gaskets
cylinder head gaskets
oil bypass filter
oil filter adapter
engine front cover
oil filter adapter and filter body
oil level indicator tube connection
oil pressure sensor
Leakage Points—Under Engine—With Vehicle on Hoist
oil pan gaskets (6710)
oil pan sealer
oil pan rear seal (6723)
engine front cover gasket
crankshaft front seal (6700)
crankshaft rear oil seal (6701)
crankshaft main bearing cap side bolts
oil filter adapter and filter body
oil cooler, if equipped
Leakage Points—With Transmission and Flywheel Removed
crankshaft rear oil seal
rear main bearing cap parting line
rear main bearing cap and seals
flywheel mounting bolt holes (with flywheel [6375] installed)
camshaft rear bearing covers (6266) or pipe plugs at the end of oil passages
Oil leaks at crimped seams in sheet metal parts and cracks in cast or stamped parts can be detected
when using the dye method.
Compression Test—Compression Gauge Check
1. Make sure the oil in the crankcase is of the correct viscosity and at the correct level and that the
battery (10655) is correctly charged. Operate the vehicle until the engine is at normal operating
temperature. Turn the ignition switch to the OFF position, then remove all the spark plugs
(12405).
2. Set the throttle plates in the wide-open position.
3. Install a compression gauge such as the Compression Tester in the No. 1 cylinder.
4. Install an auxiliary starter switch in the starting circuit. With the ignition switch in the OFF
position, and using the auxiliary starter switch, crank the engine a minimum of five compression
strokes and record the highest reading. Note the approximate number of compression strokes