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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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The cooling system components include the: block heater (optional) cylinder head temperature sensor fan blade, fan motor and fan shroud assembly radiator pressure relief cap degas bottle radiator draincock water pump oil cooler (optional) water thermostat The water thermostat: controls the engine coolant temperature. allows quicker engine warm-up. The degas bottle: provides a location for system fill. contains coolant expansion and system pressurization. provides air separation during operation. replenishes the engine coolant to the system. The fan blade draws air through the radiator to help cool the engine coolant. The fan motor: operates only when the engine is running. will not operate when the engine is off. The engine coolant flows: from the lower radiator hose to the water pump. from the water pump to the engine block and the cylinder heads. A closed water thermostat returns the engine coolant to the water pump. An open water thermostat allows the engine coolant to flow to the radiator. Unsatisfactory coolant materials: Alcohol-type antifreeze does not provide adequate water pump lubrication. has lower boiling point reduced antifreeze protection Alkaline brine solutions will cause serious engine cooling system damage. The cylinder head temperature sensor provides a signal to the temperature gauge. will invoke failsafe cooling. The optional block heater: electrical heating element is installed in the block cooling jacket. uses a standard 110V (220V in Europe) electrical supply keeps the engine coolant warm during cold weather. The auxiliary water pump (3.9L only): provides heater coolant flow boost. has a secondary function of providing engine-off cooling. Coolant Flow 3.9L

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Some 2004 – 2009 model year Highlander, 2001 – 2005 model year RAV4, and 2004 – 2010 model year Sienna AWD (4WD) vehicles may display a transmission ?uid or gear oil seepage from a vent on the right side of the transfer case. The seepage is from the transfer RH (right-hand) bearing retainer No. 2 oil seal. Production improvements have been implemented to prevent this condition from occurring. Follow the repair procedure in this bulletin to replace the RH bearing retainer No. 2 oil seal assembly. Transmission Fluid or Gear Oil Seepage from Transfer Case Vent (AWD) Repair Procedure: Removal 1. Con?rm source of gear oil/transmission ?uid seepage is from vent on RH bearing retainer. 2. Remove the engine assembly with transaxle. Refer to the Technical Information System (TIS), applicable model and model year Repair Manual: • 2004 Highlander: Engine/Hybrid System – Engine Mechanical – “2AZ-FE / 3MZ-FE: Partial Engine Assy: Replacement” • 2005 Highlander: Engine/Hybrid System – Engine Mechanical – “2AZ-FE / 3MZ-FE: Partial Engine Assy: Replacement” • 2006 Highlander: Engine/Hybrid System – Engine Mechanical – “2AZ-FE / 3MZ-FE Engine Mechanical: Engine Assembly: Removal” • 2007 Highlander: Engine/Hybrid System – Engine Mechanical – “2AZ-FE / 3MZ-FE Engine Mechanical: Engine Assembly: Removal” • 2008 / 2009 Highlander: Engine/Hybrid System – Engine Mechanical – “ 2GR-FE Engine Mechanical: Engine Assembly: Removal” 3. Remove the automatic transmission w/transfer. Refer to TIS, applicable model and model year Repair Manual: • 2004 Highlander: Drivetrain – Automatic Transmission/Transaxle – “Automatic Transaxle Assy (U151E/U151F) / (U241E/U140F): Replacement” • 2005 Highlander: Drivetrain – Automatic Transmission/Transaxle – “Automatic Transaxle Assy (U151E/U151F) / (U241E/U140F): Replacement” • 2006 Highlander: Drivetrain – Automatic Transmission/Transaxle – “U140F / U151F Automatic Transaxle: Automatic Transaxle Assembly: Removal” 4. Remove the transfer case No. 1 plug and remove the gasket from the plug. 5. Remove the transfer drain plug and remove the gasket from the drain plug. 6. Remove the transfer assembly. A. Remove the 2 bolts and 6 nuts. B. Using a plastic hammer, drive out the transfer assembly from the transaxle assembly. NOTICE • Disconnect the transfer assembly from the transaxle assembly without tilting. • When moving the transfer assembly, do NOT hold the assembly by the oil seals.

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SERVICE INFORMATION If an applied vehicle has DTC P0100 stored and possibly exhibits, • • • Engine rough running Engine surging Low engine power the cause may be an airflow sensor that has been damaged by air-ingested dust/dirt. To resolve this incident, if it should occur, follow the steps outlined in the Service Procedure on page 2. Service Procedure Summary: • Remove dust/dirt/debris from inside the air cleaner housing. This will help prevent another incident. • A new genuine Nissan air filter element must be used for all warranty claims, and any other claim for which Nissan pays. A new genuine Nissan air filter element is designed to be compatible with the Nissan air flow meter and has proven to provide adequate dust protection to help prevent these incidents. It is strongly recommended that incident customers continue using Nissan genuine air filters for assured protection when replacing according to the routine maintenance schedule. See parts information for the air filter part number (P/N). • Install a new complete airflow meter assembly. See Parts Information for the part number (P/N). • Reprogram the ECM with special new data that is matched to the different output characteristics of the new airflow meter.

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SUBJECT: Engine Coolant Temperature Sensor Related Diagnostic Trouble Code(s) and/or the Following Conditions: Hard Start, Erratic Idle, Rough Running. Engine Overheating, Low and/or Leaking Coolant, and/or Service Engine Soon Lamp Illuminated. (Replace Engine Coolant Temperature Sensor with New Design Sensor- P/N 21025106) MODELS AFFECTED: 1991-2001 Saturn S-Series vehicles CONDITION: Customers may comment about various driveability and/or engine operating concerns including: hard start, erratic idle, rough running, engine overheating, low and/or leaking coolant, and/or Service Engine Soon lamp illuminated. CAUSE: This condition may be caused by a cracked engine coolant temperature sensor. CORRECTION: Replace engine coolant temperature sensor, inspect and if necessary replace sensor harness connector. Refer to procedure in this bulletin to replace engine coolant temperature sensor and Parts Requirements for specific parts information. PROCEDURE 1. Disconnect engine coolant temperature sensor electrical connector and inspect sensor and connector terminals for corrosion and/or evidence of engine coolant. ^ If terminals are corroded or if there is evidence of engine coolant proceed to step 4. ^ If terminals are not corroded and there is no evidence of engine coolant, reconnect the electrical connector and continue to next step.