Comanche 2WD L4-150 2.5L VIN E TBI (1989)
1.
Locate the oxygen sensor in the exhaust manifold (Figure 7).
2.
Disconnect oxygen sensor electrical connector.
3.
Remove oxygen sensor. Apply heat to the sensor, if necessary, to assist removal.
4.
Clean exhaust manifold threads with a thread chaser.
Note:
Do not use solvents or lubricants on threads.
5.
Install provided oxygen sensor. Tighten to 22 ft.lbs. (30 Nm).
6.
Connect oxygen sensor electrical connector.
E.
INSTALL PCV VACUUM HOSE
(Wrangler (YJ) vehicles only):
1.
Locate the PCV vacuum hose (Figure 8).
2.
Remove old PCV hose from vacuum tubing and PCV valve.
3.
Install provided PCV vacuum hose from emission service package.
F.
INSTALL TRANSFER CASE VACUUM HOSE (4WD Vehicles Only):
