Disconnect crankshaft connector from harness connector. Using appropriate socket, remove OPS unit. Mounting stud on rear of right valve cover. Remove spark plug cable loom and spark plug wires from Once engine is started, paper spacer wears away. Paper spacer is used to set proper depth. On Wrangler with 4.0L engine and automatic transmission, ensure paper self-adhesive spacer on end of sensor is replaced if old sensor is being reused. Any other replacement bolt will cause improper sensor alignment. Sensor is mounted on transmission bellhousing. Connector is located near rear of intake manifold. To install, reverse removal procedure.ĭisconnect sensor connector from main harness connector. Disconnect camshaft position sensor connector from harness connector. To install, reverse removal procedure.ĭisconnect negative battery cable. Unbolt and remove camshaft position sensor. Lightly tap on end of distributor shaft until gear and thrust washer are removed. Using pin punch, drive out distributor roll pin. Scribe mark on distributor driven gear and distributor shaft for reassembly reference. Connect camshaft position sensor wiring harness Rotate distributor housing until rotor is aligned with CYL. Carefully engage distributor driven gear with camshaft drive gear so when distributor is installed properly, rotor aligns with reference mark.Ģ) Install hold-down clamp and bolt but do not tighten. NOTE: If engine has been rotated since distibutor removal, return engine to TDC.ġ) Clean mounting surface. Carefully engage distributor driven gear with camshaft drive gear so when distributor is installed properly, rotor aligns with reference mark.Ģ) Install distributor cap. Lift distributor fromġ) Position distributor in engine. Disconnect camshaft position sensor harnessĬonnector. Reference to indicate rotor and distributor housing position when Scribe mark on distributor and adjacent component as 1 of distributor cap and engine is at TDC. Rotate engine crankshaft until distributor rotor is pointing towardĬylinder No. Since a conventional timing light can not be used to adjust distributor after installation, ensure distributor is returned to its original position.ĭisconnect negative battery cable. Base ignition timing and timing advance are controlled by the PCM. If component removal and installation is primarily an unbolt and bolt-on procedure, only a torque specification may be furnished.ĬAUTION: Base ignition timing is not adjustable on any 2.5L, 4.0L or 5.2L engine. Removal, overhaul and installation procedures are covered in this article. Jeep Cherokee, Grand Cherokee, Grand Wagoneer, Wrangler
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