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1. Remove upper intake manifold. 2. Remove cylinder head covers, crankshaft damper, and timing chain cover. CAUTION: When aligning timing marks, always rotate engine by turning the crankshaft. Failure to do so will result in valve and/or piston damage. Fig. 70 3. Align crankshaft sprocket timing mark to mark on oil pump housing (Fig. 70). The mark on oil pump housing is 60° ATDC of #1 cylinder. CAUTION: When the timing chain is removed and the cylinder heads are still installed, DO NOT rotate the camshafts or crankshaft without first locating the proper crankshaft position. Failure to do so will result in valve and/or piston damage. 2000 Dodge Intrepid V6-2.7L VIN R Fig. 74 4. Remove primary timing chain tensioner from right cylinder head (Fig. 74). 5. Remove camshaft position sensor from left cylinder head (Fig. 69).

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Condition General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain 2001 model year Chevrolet Silverado, Suburban; GMC Sierra and Yukon XL model vehicles, equipped with an 8.1L V8 (RPO L18 – VIN G) engine. Some of these vehicles have a condition in which the crankshaft position sensor can fail intermittently or permanently. If the sensor fails intermittently, the Service Engine Soon (SES) light may illuminate and the vehicle may run rough. In addition, the engine may stall, and if so, may re-start immediately or after a cool down period. If the sensor fails permanently, the engine will quit running and will not re-start.

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For connector terminal ID, see CONNECTOR IDENTIFICATION DIRECTORY table. For wiring diagram, see L – WIRING DIAGRAMS article. 1. If referenced to this test from TEST NS-1A, go to next step. If not referenced to this test from TEST NS- 1A, turn ignition off. Attempt to start engine. Using scan tool, read camshaft signal state while attempting to start engine. Go to next step. 2. If camshaft signal is detected, go to next step. If camshaft signal is not detected, go to TEST TC-1A – NO CAM SIGNAL AT PCM . 3. Using scan tool, read engine RPM and attempt to start engine. If scan tool displayed more than 10 RPM when engine is cranked, go to next step. If scan tool display is 10 RPM or less when engine is cranked, go to step 6 . 4. Condition to set trouble code is not present at this time. Inspect all related wiring and connectors and repair as necessary. If no problems were found with wiring and connectors, go to next step. If related wiring and connectors were repaired, perform TEST VER-2A – ROAD TEST VERIFICATION . 5. Start engine. Wiggle wiring harness between Camshaft Position (CMP) sensor and Crankshaft Position (CKP) sensor to Powertrain Control Module (PCM). If engine misses or stalls, repair wiring harness as necessary where wiggling caused problem to appear. Perform TEST VER-2A – ROAD TEST VERIFICATION . If engine did not miss or stall, see INACTIVE TROUBLE CODE CONDITION . Test is complete. Perform TEST VER-2A – ROAD TEST VERIFICATION .

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DRIVEABILITY – IDLE VIBRATION – VEHICLES EQUIPPED WITH 2.0L SPI OR ZETEC ENGINE ONLY ^ ENGINE – IDLE VIBRATION – VEHICLES EQUIPPED WITH 2.0L SPI OR ZETEC ENGINE ONLY ACTION Diagnose and repair idle vibration conditions by referring to the following idle vibration Service Procedures. SERVICE PROCEDURE NOTE THE PROCEDURE CONTAINED IN THIS TSB ARTICLE MAY NOT COMPLETELY ELIMINATE ALL VIBRATION FROM THE VEHICLE. SOME VIBRATION IS INHERENT IN 1-4 ENGINE DESIGNS, SUCH AS THE SPI AND ZETEC 2.0L. THIS PROCEDURE IS DESIGNED TO REDUCE THE AMOUNT OF VIBRATION EXPERIENCED BY THE CUSTOMER. PROCEDURE FOR 2003 ESCORT ZX2 1. Neutralize engine mounts only. Refer to appropriate model year Noise, Vibration and Harshness (NVH) Workshop Manual Section 100-04. PROCEDURES FOR 1997-2002 ESCORT, ESCORT ZX2 AND TRACER 1. Shift the transaxle into Neutral and apply the parking brake. 2. Remove battery and battery tray. 3. Support engine with Three-Bar Engine Support Tool (Rotunda 303-D063) and Lifting Brackets (Rotunda 303-050). 4. Raise vehicle. Refer to the appropriate model year Workshop Manual, Section 100-02. 5. Remove the rear lower cross-member (attached with four (4) bolts (Figure 1)). 6. Remove the engine support cross-member that runs from front to rear of the engine (Belly Band). This can be accomplished by removing the front two (2) attaching bolts, the rear two (2) attaching nuts and the four (4) Engine Mount # 1 and # 2 nuts (Figure 1). NOTE DISCARD THE TWO ENGINE MOUNT # 1 FLAT WASHERS FOR VEHICLES BUILT PRIOR TO 12/03/2001 ONLY. NOTE STEP 7 MODIFICATIONS ARE FOR VEHICLES BUILT PRIOR TO 07/15/02 ONLY. 7. Modify the Belly Band on the two rear attaching Engine Mount # 1 holes by slotting the holes approximately 1/4″ (6 mm) in a front to rear direction. Use a Drill Bit (Figure 7). 8. Loosen the center bolt on the # 1 (rear) lower Engine Mount (Figure 4). 9. Loosen the center bolt on the # 2 (front) lower Engine Mount (Figure 4). NOTE STEP 10 IS FOR VEHICLES BUILT PRIOR TO 05/26/2000 ONLY. 10. Remove original front and rear engine support cross-member bushings (Figure 3).

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4. Align crankshaft sprocket timing mark to the mark on oil pump housing (Fig. 122). NOTE: Lubricate timing chain and guides with engine oil before installation. 5. Place left side primary chain sprocket onto the chain so that the timing mark is located in-between the two (plated) timing links (Fig. 122). 6. Lower the primary chain with left side sprocket through the left cylinder head opening. NOTE: The camshaft sprockets can be allowed to float on the camshaft hub during installation 1 – CAMSHAFT TIMING MARKS 2 ? CHAIN GUIDE 3 – CRANKSHAFT TIMING MARKS 4 – CRANKSHAFT SPROCKET 5 – CHAIN TENSKJNER ARM 6 – CHAIN TENSIONER 7 – CAMSHAFT TIMING MARK 8 – INTAKE CAMSHAFT SPROCKETS 9 – CHAIN GUIDES 10 – WATER PUMP SPROCKET 7. Loosely position left side camshaft sprocket over camshaft hub. 8. Align timing (plated) link tq the crankshaft sprocket timing mark (Fig. 122). 9. Position primary chain onto water pump drive sprocket. 10. Align right camshaft sprocket timing mark to the timing (plated) link on the timing chain (Fig. 122) and loosely position over camshaft hub. 11. Verify that all chain timing (plated) links are properly aligned to the timing marks on all sprockets (Fig. 122). 12. Install left side lower chain guide and tensioner arm (Fig. 120). Tighten attaching bolts to 28 Nm (250 in. lbs.). NOTE: Inspect oil ring on chain guide access plug before installing. Replace O-ring as necessary. 13. Install chain guide access plug to left side cylinder head (Fig. 120). Tighten plug to 20 Nm (15 ft lbs.)