SEQUENCE OF WORKS
1. Raise the vehicle and secure it on supports. During all work on the exhaust system, the vehicle must be securely secured with supports and must not tip over even if individual parts are jerked sharply.

Fig. 11.2. Location of the contact connector (1) of the oxygen concentration sensor (2)
2. Disconnect the electrical connector 1 (Fig. 11.2) of the oxygen concentration sensor, checking the condition of the wiring harness. Often the insulation around both wires becomes brittle or the connections to the oxygen sensor become brittle. Damaged connectors cannot be repaired, so it is necessary to replace the oxygen sensor as a set.
3. Unscrew the front exhaust pipe mounting from the exhaust manifold and carefully lower it.
4. Lift the exhaust system, remove it from the rubber supports and remove it from under the car.
5. Disconnect the pipes connecting the front and rear parts of the exhaust system.
6. On the ground next to the car, assemble the exhaust system parts without securing them. Lubricate the new gaskets and pipe connections with heat-resistant grease so that they can be easily separated later.
7. Hang the exhaust system on rubber supports to the bottom of the car.
8. Bolt the front section of the exhaust pipe to the exhaust manifold.
9. The rubber mounts must evenly support the force of gravity of the exhaust system.

Fig. 11.3. Location of the exhaust system at the same distance from the heat shield plates under the fuel tank
10. All elements of the exhaust system must be at an equal distance from the body (at least 25 mm to the bottom of the body and heat-protective plates). By turning or shifting in the longitudinal direction, install the pipes and mufflers at an equal distance from the body (Fig. 11.3).
11. Securely fasten the exhaust pipe to the front flange and secure with clamps using assembly grease.
12. Lower the vehicle.
13. Perform a test drive, ensuring that the exhaust system components are heated evenly.
14. Finally, check the reliability of all fastenings and the tightness of the system.
[This publication was borrowed from the website: FORDBOOK.RU]