Town Car V8-281 4.6L SOHC (1991)
Engine Mount: Service and Repair
Front
Front Engine Mounts
1.
Disconnect ground and positive battery cables.
2.
Remove air inlet tube.
3.
Drain cooling system, then remove cooling fan and shroud.
4.
Relieve fuel system pressure as outlined under MAINTENANCE PROCEDURES/FUEL SYSTEM PRESSURE RELIEF.
5.
Remove upper radiator hose.
6.
Remove wiper module and support bracket.
7.
Discharge A/C system.
8.
Disconnect A/C compressor outlet hose, then remove hose assembly to righthand coil bracket attaching bolt.
9.
Remove engine electrical harness 42-pin connector from bracket on brake vacuum booster.
10.
Disconnect engine electrical connector, then disconnect transmission harness electrical connector.
11.
Disconnect throttle valve cable at throttle body.
12.
Disconnect heater outlet hose.
13.
Remove heater outlet hose assembly to righthand cylinder head upper attaching stud, then loosen lower bolt bolt and position aside.
14.
Remove blower motor resistor.
15.
Remove righthand engine mount to lower engine bracket attaching bolt.
16.
Disconnect EGR valve vacuum hoses and tube.
17.
Remove EGR valve to intake manifold attaching bolts.
18.
Disconnect Heated Exhaust Gas Oxygen (HEGO) sensors.
19.
Raise and support vehicle.
20.
Remove righthand front engine mount two through bolts, then remove lefthand front engine mount through bolt, Fig. 1.
21.
Remove EGR tube line attaching nut at righthand exhaust manifold, then remove EGR valve assembly.
22.
Disconnect exhaust pipes at exhaust manifolds, then lower and support exhaust at crossmember.
23.
Position suitable jack and wood block under oil pan, rearward of drain plug, then raise engine approximately 4 inches.
24.
Install wood block under oil pan, then lower engine onto wood block.
25.
Remove engine mount attaching bolts.
26.
Reverse procedure to install, noting the following:
a. Torque EGR valve and tube assembly to exhaust manifold line nut to 26-33 ft. lbs.
b. Torque exhaust manifold to exhaust attaching bolts to 20-30 ft. lbs.
c. Torque EGR valve to intake manifold attaching bolts to 15-22 ft. lbs.
d. Torque heater outlet hose to righthand cylinder head attaching stud, bolt and ground strap to 15-22 ft. lbs.
e. Refer to Fig. 1, for engine mount torque specifications.
