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2004 Honda Element EX ROCKER ARM OIL PRESSURE SWITCH (VTEC OIL PRESSURE SWITCH) CIRCUIT HIGH VOLTAGE MANUAL

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Filed Under (Honda Manuals) by admin on 20-06-2012

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1. Check the engine oil level. Is the level OK? YES- Go to step 2 . NO- Adjust the engine oil to the proper level, then go to step 14 . 2. Turn the ignition switch ON (II). 3. Clear the DTC with the HDS. 4. Do the VTEC TEST in the INSPECTION MENU with the HDS. Is the result OK? YES- Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the rocker arm oil pressure switch (VTEC oil pressure switch) and the ECM/PCM. NO- Go to step 5 . 5. Check the result of step 4 . * Rocker Arm Oil Pressure Switch (VTEC Oil Pressure Switch) Failure * Rocker Arm Oil Pressure Switch (VTEC Oil Pressure Switch) Open * Rocker Arm Oil Pressure Switch (VTEC Oil Pressure Switch) SIG Line Open * Rocker Arm Oil Pressure Switch (VTEC Oil Pressure Switch) GND Line Open Is the test result any of the above? YES- Go to step 6 . NO- Check for poor connections or loose terminals at the rocker arm oil pressure switch (VTEC oil pressure switch). If it is OK, replace the rocker arm oil control solenoid (VTEC solenoid valve) (see step CMP SENSOR A REPLACEMENT ), then go to 14 . 6. Turn the ignition switch OFF. 7. Disconnect the rocker arm oil pressure switch (VTEC oil pressure switch) 2P connector. 8. Check for continuity between rocker arm oil pressure switch (VTEC oil pressure switch) 2P connector terminals No. 1 and No. 2 Fig. 16: Checking Continuity Between Rocker Arm Oil Pressure Switch 2P Connector Terminals Courtesy of AMERICAN HONDA MOTOR CO., INC. Is there continuity? YES- Go to step 9 . NO- Replace the rocker arm oil pressure switch (VTEC oil pressure switch) (see ROCKER ARM OIL PRESSURE SWITCH (VTEC OIL PRESSURE SWITCH) REMOVAL/INSTALLATION ), then go to step 13 . 9. Turn the ignition switch ON (II). 10. Measure voltage between rocker arm oil pressure switch (VTEC oil pressure switch) 2P connector terminal No. 1 and body ground

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2001 Dodge Durango BLOWER MOTOR RELAYS REPAIR MANUAL

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Filed Under (Dodge Manuals) by admin on 13-02-2012

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BLOWER MOTOR RESISTOR 1. Disconnect negative battery cable. Disconnect blower motor resistor harness connector. Using DVOM, check for continuity between all blower motor resistor terminals. If continuity exists between all terminals, go to next step. If continuity does not exist between all terminals, replace faulty blower motor resistor. 2. Check for open or short in circuits between blower motor resistor and heater control panel. Also check for open or short in wire between blower motor resistor and blower motor. BLOWER MOTOR SWITCH 2000 Dakota, 2000 Durango & 2000-01 Ram Pickup 1. Remove Power Distribution Center (PDC) cover. Using DVOM, check for battery voltage at PDC fuse No. 5 (40-amp) on Dakota and Durango; PDC fuse No. 12 (40-amp) on Ram Pickup. If battery voltage exists, go to next step. If battery voltage does not exist, check for open in Red wire between battery and underhood PDC. If Red wire is okay, replace underhood PDC. 2. Disconnect negative battery cable. Remove heater control panel. See HEATER CONTROL PANEL under REMOVAL & INSTALLATION. Disconnect heater control panel cable, electrical and vacuum connectors as necessary. Using DVOM, check for continuity between heater control panel harness connector terminal No. 7 (Black wire on Dakota and Durango; Black/Orange on Ram Pickup) and ground. See Fig. 5 . If continuity exists, go to step 4 . 3. If continuity does not exist, repair open in Black wire or Black/Orange wire between heater control panel 2001 Dodge Durango 2000-01 HEATER SYSTEMS’ ‘RWD Trucks & Vans harness connector terminal No. 7 and ground connector located at lower right corner of instrument panel (Dakota and Durango) or behind center of instrument panel (Ram Pickup). 4. Place heater mode control knob to any position except OFF. Using DVOM, check for continuity between heater control panel terminal No. 7 and terminals No. 3, 4, 5 and 6 while rotating blower motor switch. See Fig. 5 . 5. If continuity does not exist at any terminal, replace faulty heater control panel. If continuity exists as specified, check for open in circuits between heater control panel and blower motor resistor. Also check for an open in circuit between heater control panel and blower motor. See WIRING DIAGRAMS . Fig. 5: Identifying Heater Control Panel Blower Switch Connector Terminals (2000 Dakota & Durango Are Shown; Ram Pickup Is Similar) Courtesy of CHRYSLER CORP. Ram Van/Wagon 1. Disconnect negative battery cable. Remove heater control panel. See HEATER CONTROL PANEL under REMOVAL & INSTALLATION. Disconnect heater control panel harness connectors. Using DVOM, check for continuity between heater control panel C3 harness connector terminal “C” (Black wire) and ground. See Fig. 6 . If continuity exists, go to next step. If continuity does not exist, repair open in Black wire between heater control panel and ground connector located at lower right of steering column. 2. Place heater mode control selector to any position, except OFF. Using DVOM, check for continuity between appropriate terminals of heater control panel, for C3 connector terminals “B” (Violet wire) and “C” (Black wire). If continuity exists through heater control panel, go to next step. If continuity does not exist, replace faulty heater control panel assembly. 3. Using DVOM, check for continuity between heater control panel C3 connector terminal “B” (Violet wire) and C1 connector terminal “E” (Violet wire). See Fig. 6 . If continuity exists, go to next step. If continuity does not exist, repair open in Violet wire between heater control panel C3 and C1 connectors.

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2000 Pontiac Bonneville V6-3.8L VIN K – A/T 4T65E Harsh Shifts/Shudders/Slips Repair Manual

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Filed Under (Pontiac Manuals) by admin on 13-07-2012

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Line Pressure Check Procedure Tools Required Important: Before performing a line pressure check, verify that the pressure control (PC) solenoid valve is receiving the correct electrical signal from the PCM. Caution: Keep the brakes applied at all times in order to prevent unexpected vehicle motion. Personal injury may result it the vehicle moves unexpectedly. J 21867Universal Pressure Gauge Set 1. Install a Scan Tool. 2. Start the engine and set the parking brake. 3. Check for a stored Diagnostic Trouble Code (DTC). 4. Repair the vehicle, if necessary. 5. Check the fluid level. Refer to the Transmission Fluid Checking Procedure. 6. Check the manual linkage for proper adjustment. 7. Turn the engine OFF. Remove the oil pressure test hole plug and install the J 21867. 8. Put the gear selector in PARK range and set the parking brake. 9. Start the engine and allow the engine to warm up at idle Notice: Total test running time should not be longer than two minutes, or else transmission damage could occur. Notice: Refer to Fastener Notice in Cautions and Notices. Parts Information 10. Access the PC solenoid valve control test on the Scan Tool. Zoom Sized for Print 11. Increase the PC solenoid as shown actual current from 0.0 to 1.0 amps in 0.1 amp increments. Allow the pressure to stabilize for five seconds after each pressure change. Read the corresponding line pressure on the J 21867. 12. Refer to the Line Pressure specification table. Compare the data to the table. 13. If pressure readings differ greatly from the table, refer to Incorrect Line Pressure. 14. Remove the J 21867. 15. Apply sealant, P/N 12345382 (in Canada, P/N 10953489), to the oil pressure test hole plug. 16. Install the oil pressure test hole plug. Tighten Tighten the oil pressure test hole plug to 12 N.m (106 lb in).

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2008 Ford Focus A/T Main Control Valve Body Removal And Installation

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Filed Under (Ford Manuals) by admin on 01-07-2012

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Disassembly 12 7Z490 Separator plate and gasket assembly 1. Remove the solenoid body bolts and the 13 7A101 Body — control valve lower solenoid body. 14 7R294 Stop — main regulator valve 15 7F445 Retainer plate — main regulator valve 16 7A270 Spring — main fluid pressure regulator valve 17 7C338 Valve — main fluid pressure regulator 18 7G411 Spring — solenoid regulator valve 19 7H392 Valve — solenoid regulator valve 20 7D400 Spring — intermediate servo accumulator 21 7D398 Piston — intermediate servo 2. Remove and discard the solenoid body gaskets. accumulator 22 7G408 Valve — converter pressure relief 23 7G316 Spring — converter regulator valve 24 7M040 Valve — lock up control 25 7Z490 Gasket — solenoid body 26 7G179 Valve — low reverse shift 27 7M040 Valve — 3-4 shift 28 7H148 Shift Solenoid B (SSB) (on/off) valve 29 7H148 Shift Solenoid A (SSA) (on/off) valve ISASSEMBLY AND ASSEMBLY (Continued) 3. Remove and discard the seals. 3. Install the seals. 4. Disassemble the main control valve body. 4. Install a new solenoid body gasket. Assembly 1. Install a new separator plate and gasket assembly. 2. NOTE: Do not fully tighten the bolts at this stage. Assemble the main control valve body and loosely install the bolts. DISASSEMBLY AND ASSEMBLY (Continued) 5. Install the solenoid body and loosely install the 6. Tighten the solenoid body bolts in the sequence bolts. shown. •Tighten to 9 Nm (80 lb-in)

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1999 FORD EXPLORER/ RANGER TRANSMISSION-4R44E OR 5R55E-SLIPPING SHIFT/ DELAYED OR NO ENGAGEMENT REPAIR MANUAL

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Filed Under (Ford Manuals) by admin on 18-05-2012

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SERVICE PROCEDURE F87Z-7A100-DB Main Control (4.0L EI Explorer) F87Z-7A100-EB Main Control (4.0L SOHC Explorer) 1. Perform normal diagnosis for this concern. XL2Z-7L491-AA Bracket XL2Z-7G383-AA Electronic Pressure Control (EPC) 2. Perform Line Pressure Tests as listed in the Solenoid 1999 Explorer/Mountaineer, Ranger Workshop Manual. OTHER APPLICABLE ARTICLES: NONE WARRANTY STATUS: Eligible Under The 3. If pressures are low, perform Pinpoint Test for Provisions Of Bumper To the EPC solenoid. Bumper Warranty Coverage And Emissions Warranty 4. Inspect the bracket that attaches the Torque Coverage Converter Clutch (TCC), Shift Solenoid B OPERATION DESCRIPTION TIME (SSB), Shift Solenoid D/Coast Clutch Solenoid 991610A Replace Electronic 1.2 Hrs. (SSD/CCS), and EPC solenoids to the main Pressure Control (EPC) control for damage. If the bracket is damaged, Solenoid And Clean Main replace both the bracket and solenoid. Control (Includes Time For 5. If the bracket is not damaged, inspect the Road Test) – 4R44E Or solenoid for the affected date code (refer to the 5R55E following Manufacturing Date Code Chart) and 991610B For Line Pressure And ID marking (Figure 1, Views 1, 2, and 3). If the Pinpoint Tests, Use “A” solenoid is one of the affected, replace it. Time As Outlined In The Warranty And Policy MANUFACTURING DATE CODE Manual Date Code Month/Year DEALER CODING 868xx August 1998 CONDITION 869xx September 1998 BASIC PART NO. CODE 870xx October 1998 7G383 01 871xx November 1998 OASIS CODES: 501000, 502000, 50300

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1995-1999 Buick Riviera Steering Vibration/Shudder/Moan During Parking Maneuvers on Dry Pavement (Install Power Steering Pressure (Inlet) and/or Return (Outlet) Hose Assembly)

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Filed Under (Buick Manuals) by admin on 11-02-2012

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1. Verify that the power steering pump reservoir is full. 2. Verify that the accessory drive belt is in good condition and that the pulleys are not bent or damaged. 3. Verify proper belt tension and operation of the belt tensioner. 4. Check for power steering hose ground out conditions. 5. Check for good engine idle and correct engine RPM. 6. Check to see that the rear transaxle mount does not have a plastic assembly aid installed which is used Subject: Steering Vibration/Shudder/Moan During Parking Maneuvers on Dry Pavement (Install Power Steering Pressure (Inlet) and/or Return (Outlet) Hose Assembly) Models: 1995-99 Buick Riviera 1997-2001 Buick Park Avenue, Ultra 2000-2001 Buick LeSabre 2000-2001 Pontiac Bonneville • 1995-98 Buick Riviera • 1997-98 Buick Park Avenue and Ultra • 1999 Buick Riviera • 1999-2001 Buick Park Avenue and Ultra • 2000-2001 Buick LeSabre • 2000-2001 Pontiac Bonneville • If fluid level is low, fill and check for leaks. • If power steering system has air in the system, perform the “Bleeding Air from Power Steering System” procedure as described in the Power Steering System sub-section of the Service Manual. Important: When performing the “Bleeding Air from Power Steering System” procedure, it is important that the front of the vehicle is supported by the lower control arms. If the vehicle is not supported by the lower control arms, the procedure may cause the strut bushing to dislocate and cause new concern. for assembly purposes. If the assembly aid is installed, remove the assembly aid and install the rear transaxle mount. 7. With the vehicle on dry pavement, maneuver the vehicle in parking positions. If the steering vibrates/shudders or moans in this test, replace the power steering pressure hose and/or the harmonic balancer. Important: A defective harmonic balancer on the 1995 Buick Riviera can influence steering vibrations after power steering hose installation. Important: When installing the pressure hose on the 1995 Buick Riviera, pull down on the pressure hose at the rear of the engine or bend the hose to allow clearance between the hose and the front of the dash. Power Steering Pressure (Inlet) Hose Replacement Procedure For 1995-1998 Vehicles: 1. Raise and suitably support the vehicle. Refer to Vehicle Lifting and Jacking in the General Information section of the Service Manual. 2. Drain the power steering fluid. Refer to Draining the Power Steering System in the Power Steering section of the Service Manual. 3. Remove the power steering gear assembly heat shield (1). 4. Disconnect the power steering pressure hose from the power steering pump assembly (4). 5. Remove the bolt/screws from the retaining clips (3). 6. Disconnect the power steering pressure hose from the power steering gear assembly (2). 7. Remove the power steering pressure hose assembly from the vehicle. 8. Install the power steering pressure hose assembly to the vehicle. 9. Connect the power steering pressure hose to the power steering pump assembly (4). 10. Connect the power steering pressure hose to the power steering gear assembly (2). Tighten Tighten the power steering pressure hose to the steering gear to 27 N·m (20 lb ft). 11. Install the bolt/screws to the retaining clips (3). Tighten Tighten the retaining clip bolt/screws to 6 N·m (53 lb in). 12. Install the power steering gear assembly heat shield (1). 13. Lower the vehicle. 14. Fill and bleed the power steering system using, J 43485. Refer to Corporate Bulletin Number 83-32-09, dated November, 1998. Power Steering Pressure (Inlet) and Return (Outlet) Hose Replacement Procedure For 1999-2001 Vehicles: 1. Raise and suitably support the vehicle. Refer to Vehicle Lifting and Jacking in the General Information section of the Service Manual. 2. Drain the power steering fluid. Refer to Draining the Power Steering System in the Power Steering section of the Service Manual. 3. Remove the LH front wheel/tire assembly. 4. Remove the LH lower splash shield. 5. Remove the lower radiator air deflector (engine splash shield, if installed.

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1989 Honda Accord LXi FUSES AND CIRCUIT BREAKERS IDENTIFICATION / REPAIR MANUAL

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Filed Under (Honda Manuals) by admin on 19-05-2011

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1 – 15 Amp Charge Warning Light, Voltage Regulator, Cooling Fan Timer Control Unit, Fuel Cut-off Relay, Speed Sensor, PGM-FI Main Relay, Fuel Pump, Control Solenoid Valves, Emission Control Unit, Speed Sensor (Automatic Seat Belts, 1988-89) 1989 Honda Accord LXi FUSES & CIRCUIT BREAKERS’ ‘Fuses & Circuit Breakers 1986-89 Honda 1989 Honda Accord LXi FUSES & CIRCUIT BREAKERS’ ‘Fuses & Circuit Breakers 1986-89 Honda None Sunday, August 10, 2008 12:33:23 AM Page 1 © 2005 Mitchell Repair Information Company, LLC. None Sunday, August 10, 2008 12:33:26 AM Page 1 © 2005 Mitchell Repair Information Company, LLC. ? 2 – 10 Amp Safety Indicator, Shift Lever Position Indicator, Clock & Gauges, Tachometer, Back-Up Lights, Turn Signal Relay & Lights, Integrated Control Unit, Warning Lights, Cruise Control Indicator, Light Dimming Circuit, Automatic Seat Belt Control Unit, Shift Lock Solenoid (1989) ? 3 – 20 Amp Wiper Motors, Washer Motors, Intermittent Wiper Relay, Sun Roof Relays, Power Window Relay ? 4 – 7.5 Amp Cruise Control Unit, Cruise Control Indicator Light ? 5 – 10 Amp Rear Window Defogger Relay, Rear Window Defogger Indicator Light, Heater Control Amplifier, Fan Motor, A/C Compressor Clutch & Relay, A/C Delay Unit, Heater Control Panel ? 6 – 10 Amp Right Headlight Low Beam ? 7 – 10 Amp Left Headlight Low Beam ? 8 – 15 Amp Left Headlight High Beam ? 9 – 15 Amp Right Headlight High Beam, High Beam Indicator Light ? 10 – 7.5 Amp Brake Warning Bulb Check Circuit, PGM-FI ECU, PGM-FI Main Relay, Emission Control Unit ? 11 – 15 Amp Headlight Retractor Control Unit (Up) ? 12 – 15 Amp Power Door Mirrors, EFE Heater Unit, Radiator Fan Relay, Cooling Fan Timer Unit ? 13 – 10 Amp Power Antenna Motor, Stereo Radio/Cassette Player, Power Amplifier (SEi Model) ? 14 – 15 Amp Vanity Mirror Light, License Plate Lights, Taillights, Rear Side Marker Lights, Dash Light Brightness Control Unit, Cigarette Lighter Illumination, Ashtray Light, Headlight Retractor Control Unit (Light-On), Dash & Switch Lights ? 15 – Blank

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1984 Mercedes Benz 190E Fuel Delivery and Air Induction Engine Testing And Adjustment Manual

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Filed Under (Mercedes-benz Manuals) by admin on 13-04-2012

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Note: Test and adjust lambda control with a lambda control tester. The lambda control and the idle speed emissions level must not be tested when the engine is very hot, e.g. immediately after driving sharply or after measuring engine output on the dynamometer. Testing, adjusting 1 Complete measurement sheet. 2 Switch off air conditioning or automatic climate control. Move selector lever into position “P”. 3 Read out DTC memory. Note: Not available on model year 1984-1986. 4 Connect testers: oil remote thermometer (018)124 589 07 21 00 lambda control tester (012) twin socket (031) trigger clamp (011) exhaust probe (005)126 589 11 63 00 CO measuring instrument (006) engine tester with oscilloscope (030) multimeter (003) test cable (033)102 589 04 63 00. 5 Position extraction device (014) at exhaust tail pipe. 6 Check engine coolant level, adjust to correct level. 7 Check engine oil level, pay attention to condition of oil (visual inspection). 8 Take off air cleaner. 9 Check ease of movement and condition of throttle control linkage and throttle valve. Grease all bearing points and ball sockets. 10 Check fulcrum lever, adjust. Check whether the roller (15) in the fulcrum lever (13) is resting free of tension against end stop. Adjust fulcrum lever (13) with the connecting rod (2), if necessary, so that the roller (15) is resting free of tension against end stop. 11 Idle stop. Check whether the throttle valve is resting against idle stop. Disconnect connecting rod (2) for this step. Adjust throttle control. Engines with cruise control only. Check whether the actuator is resting against idle stop of cruise control by pressing the lever of the actuator clockwise against idle stop at cruise control. When attaching the connecting rod (21), ensure that the lever of the actuator is lifted approx. 1 mm off the idle stop at the cruise control. Adjust tie rod, if necessary. Adjust throttle control. 12 Check wide open throttle stop from the accelerator pedal , adjust. 13 Voltages Test (battery and ignition coil ): No-load voltage Connect voltmeter to the battery, paying attention to the polarity, and take reading of voltage. Specification: 12.2 volts . Ignition coil Switch on ignition with engine not running. Test the voltage terminal 15 to ground at contact 5 of diagnostic connector. Specification: battery voltage Test difference in voltage between terminal 15 and terminal 1 at contacts 5 and 4 of diagnostic connector. Specification: 0 volts If the specified values are not reached, test

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1984-1995 Honda Accord/Prelude In­Tank Fuel Pumps TEST/REPAIR MANUAL

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Filed Under (Honda Manuals) by admin on 03-07-2012

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Carbureted Fuel System GENERAL INFORMATION On these vehicles, the engine management system is considered part of the emission control system. The major components include the carburetor(s), feedback control system, the air injection system, a throttle control system and the EGR system. The system consists of sensors and switches that feed information to the Electronic Control Unit (ECU), which will then operate several solenoid valves to maintain the ideal air/fuel ratio under all conditions. As useful as the tests found in this section are, the first step in repair or service to engine management systems is still to gain as much information as possible about the problem; when and under what conditions it occurs. At highway speed? At idle only? Only under heavy load or hard acceleration? Wet weather? Defining the problem will eliminate many systems from consideration and possibly point to the affected system. Before diving into an extended electrical diagnosis, take the time to review the basics. Check every vacuum line for cracks or leaks. Check every electrical connector for corrosion or loose pins. Quite often, simply unplugging and reconnecting a connector will break up corrosion on the pins and restore the circuit. Watch out for poor grounds, particularly if the car has experienced major bodywork. COMPONENT TESTING Air Injection System The purpose of this system is to supply oxygen to the exhaust stream at a point in the exhaust manifold that is hot enough to burn off some of the hydrocarbon emissions. The main component is an air suction valve. The valve is spring loaded to stay closed, with engine vacuum supplied to a diaphragm that reduces the spring pressure and allows the reeds to open. The ECU regulates the engine vacuum to the diaphragm by operating a solenoid valve. 1. With the engine at normal operating temperature and at idle, remove the air cleaner and listen for a bubbling sound at the air suction port. There should be no sound at idle, meaning the air suction valve is closed. 2. If the noise is heard at the air suction port, disconnect the vacuum hose at the air suction valve and connect a vacuum gauge to the hose. There should be no vacuum. If there is vacuum and the noise stops, the problem is in the control system. If there is no vacuum and the bubbling sound is still there, the air suction valve is defective and must be replaced. 3. To test the valve, draw a vacuum at the air suction valve diaphragm and listen for a bubbling sound at the air suction port. If no sound is heard, the air suction valve or diaphragm is faulty. Throttle Control System

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FORD HIGH PRESSURE SYSTEM DIAGNOSTICS REPAIR MANUAL

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Filed Under (Ford Manuals) by admin on 16-04-2012

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SERVICE PROCEDURE IT IS NOT NECESSARY TO REPLACE THE HIGH PRESSURE PUMP WHEN REPLACING THE A minimum of 3.5 MPa (500 psi or 0.8 volts) ICP is QUICK CONNECT FITTINGS. required before the injectors are enabled. No or low oil in the system, leakage at the injector upper 4. If a leak is identified in the branch tube, use D-rings, high pressure pump quick connect fitting, the following procedure to replace the branch high pressure pump discharge tube, faulty injection tube if the vehicle your working on is a F-Super pressure regulator (IPR), high pressure pump, or Duty or Excursion. For E-Series, the engine branch tube could cause low ICP pressure. needs to be removed to replace the branch tube. When replacing the branch tube, also 1. Perform the revised Powertrain Controls / install the STC bracket kit. Emissions Diagnosis (PC/ED) lead diagnostics Section 4, Hard Start / No Start Diagnostic BRANCH TUBE REPLACEMENT FOR F-SUPER Procedure Tests 10e and 10f. These tests were DUTY AND EXCURSION VEHICLES ONLY revised in January 2006. 1. Remove the transmission. See the appropriate NOTE model year Workshop Manual (WSM), Section 307-01. THE LOW PRESSURE OIL SYSTEM MUST BE WORKING PROPERLY IN ORDER FOR THE HIGH NOTE PRESSURE OIL SYSTEM TO BUILD ICP LEAVE THE FLYWHEEL ON THE ENGINE, AS IT PRESSURE. THIS INCLUDES ADEQUATE WILL MAKE IT EASIER TO TURN THE ENGINE PRESSURE AND GOOD QUALITY PROPERLY OVER TO TOP DEAD CENTER (TDC) AND THE MAINTAINED OIL. TRANSMISSION FLUID DOES NOT NEED TO BE NOTE DRAINED. THIS TSB ONLY APPLIES TO REPLACEMENT OF 2. Set engine at TDC both cylinder number 1 ANY COMPONENT FOUND DEFECTIVE WHILE rocker arms should be loose. See rocker arm PERFORMING PC/ED HARD START / NO START removal procedure in the appropriate online TESTS 10e AND 10f. WSM, Section 303-01C

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