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vacuum lines schematics 1992 camaro 3 1 eng

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1998-2000 HONDA Accord L4 Replace the fuel pressure regulator, and reroute the fuel pressure regulator vacuum line

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1. Locate and identify the three vacuum ports on the intake manifold. 2. Disconnect and discard the vacuum hose that connects the fuel pressure regulator to vacuum port C. 3. Plug vacuum port C with the cap from the tube kit. 4. Replace the fuel pressure regulator. Refer to page 11-113 of the 1998-00 Accord Service Manual. 5. Install the new vacuum hose kit using one of the following procedures 1. Remove and discard the cap from vacuum port A. 2. Connect the short vacuum hose to vacuum port A M/T WITH CRUISE CONTROL 2. Disconnect and discard the vacuum hose that connects the fuel pressure regulator to vacuum port C. 3. Plug vacuum port C with the cap from the tube kit. 4. Replace the fuel pressure regulator. Refer to page 11-113 of the 1998-00 Accord Service Manual. 5. Install the new vacuum hose kit using one of the following procedures. Zoom Sized for Print 1. Remove and discard the cap from vacuum port A. 2. Connect the short vacuum hose to vacuum port A. Zoom Sized for Print 3. Anchor the long vacuum hose by attaching it to the rear intake air duct clip and to the cruise control hose. . Route the new vacuum hose to the fuel pressure regulator. Attach the hose to the three rear clips on the engine wire harness cover. Zoom Sized for Print 1. Remove and discard the vacuum hose from vacuum port A. This hose supplies vacuum to the rear engine mount control solenoid. 2. Connect the short vacuum hose from the top of the Y fitting to vacuum port A

2001 Chevy Truck S10/ T10 Blazer Intake Manifold Replacement (Upper) Removal And Installation Manual

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Intake Manifold Replacement (Upper) Notes Intake Manifold Replacement – Upper Removal Procedure Important: The upper intake does not have to be removed to remove the lower intake manifold. 1. Disconnect the breather tube at the air cleaner outlet duct 2. Remove the air cleaner outlet duct retaining wingnut. 3. Disconnect the IAT sensor harness connector 4. Remove the air cleaner outlet duct from the throttle body. 5. Disconnect the accelerator cable from the throttle body 6. Remove the accelerator cable from the accelerator control cable bracket. 7. Disconnect the cruise control cable, if equipped from the throttle shaft and the accelerator cable bracket. 8. Disconnect the vacuum hose from the intake manifold for the vacuum tank. 9. Remove the power brake booster vacuum hose. 10. Disconnect the following electrical connectors: * The A/C compressor clutch (1) * The A/C compressor cutoff switch (5), if equipped * The Throttle Position (TP) sensor (2) * The Idle Air Control (IAC) motor (3) 11. Disconnect the following electrical connectors: * The fuel meter body assembly (1) * The Manifold Absolute Pressure (MAP) sensor(3) * The EVAP canister purge solenoid valve (2) 12. Remove the engine wire harness clip from the accelerator cable bracket. 13. Move the engine wiring harness aside. 14. Remove the accelerator cable bracket from the throttle body and the intake manifold. 15. Remove the accelerator and cruise control cable bracket from the throttle body. Leave the accelerator and cruise control cables on the bracket16. Remove the PCV valve hose assembly from the intake manifold and the valve rocker arm cover. 17. Remove the bracket for the engine wiring harness from the intake manifold stud. 18. Remove the fuel lines from the fuel meter body assembly. 19. Remove the EVAP canister purge solenoid valve.

1999 Chevrolet Silverado The service engine soon light is on with trouble code P1416 present

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Tests/Procedures: 1. Use a scanner and command the air pump on with the engine running at idle. Check if the O2 sensors go lean. 2. If the O2 sensor does not go lean on one bank, see if the check valve at the exhaust manifold is stuck closed, not allowing air into the manifold. Potential Causes: Defective Check Valve Diagnostic Codes: P1416 Author: Christopher Pittman Average Reported Mileage: 85812 Confirmed Fix Summary Confirmed Fix 18 – Air Injection Reaction (AIR) Check Valve 1 – Air Injection Reaction (AIR) Check Valve, Air Injection Reaction (AIR) Pump Confirmed Fix Details Tech Reported Fix Details Confirmed Fix Lee Stroup Sr. November 15, 2007 2001 Chevrolet Silverado 1500, 5.3L, Vin T, Eng Cfg V8 * A.I.R. Check Valve – removed check valves, found one rusted closed, one restricted, replaced both valves. Moisture from exhaust seems to have rusted both valves. Air Injection Reaction (AIR) Check Valve Paul Puleo August 20, 2009 1999 Chevrolet Camaro, Z28 5.7L * Replaced Both Air Injection Reaction (AIR) Check Valves – bank 2 AIR check valve restrticted, bank 1 slightly restricted replaced both Air Injection Reaction (AIR) Check Valve SouthGate January 05, 2009 2000 Chevrolet Silverado 1500, 4.8L, Vin V, Eng Cfg V8 * Replaced Air Injection Reaction (AIR) Check Valve – replaced boht check valves. fix the code. Air Injection Reaction (AIR) Check Valve Dwight Heckman July 31, 2008 2000 Chevrolet Blazer, 4.3L * Check Valve – replacing the check valve and cleaning out the lines repaired the problem. Air Injection Reaction (AIR) Check Valve Nick Secchitano June 16, 2009 2000 Chevrolet Silverado 1500, 5.3L, Vin T, Eng Cfg V8 * Replaced Both Air Injection Reaction (AIR) Check Valves – Air injection check valves Air Injection Reaction (AIR) Check Valve Mark Bertelsen 1998 Chevrolet Camaro, Z28 5.7L * Replaced Air Injection Reaction (AIR) Check

1999 Ford Escort/ Tracer Cylinder Head Removal And Installation Manual

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Removal 1. Disconnect the battery ground cable (14301). For additional information, refer to Section 414-01 . 2. WARNING: Fuel supply lines will remain pressurized for long periods of time after engine shut down. This pressure must be relieved before disconnecting any fuel lines or fuel system components. Relieve the fuel system pressure. For additional information, refer to Section 310-00 . 3. Remove the engine air cleaner outlet tube. For additional information, refer to Section 303-03 . 4. Remove the timing belt. For additional information, refer to Timing Drive Components—Timing Belt in this section. 5. Remove the vacuum hoses at the: * positive crankcase ventilation (PCV) valve (6A666). * throttle body (9E926). * intake manifold (9424). * fuel pressure sensor. 6. Disconnect the fuel charging wiring (9D930) electrical connectors at main engine connector. 7. Disconnect the crankshaft position (CKP) sensor electrical connector. 8. Disconnect the fuel line. For additional information, refer to Section 303-04 . 9. Remove the power steering pump (3A674) and bracket as an assembly. For additional information, refer to Section 211-02 . 10. Remove the generator (GEN). For additional information, refer to Section 414-02 . 11. Remove the oil level indicator tube (6754). For additional information, refer to Oil Level Indicator and Tube in this section. 12. Disconnect the heater hoses. For additional information, refer to Section 412-02 . 13. Lower the vehicle. 14. Disconnect the upper radiator hose (8260) from the thermostat housing water hose connection. For additional information, refer to Section 303-03 . 15. Remove the camshafts (6250). For additional information, refer to Camshaft in this section. 16. Remove the ignition coil (12029) and bracket. For additional information, refer to Section 303-07 . 17. Remove the water thermostat housing. For additional information, refer to Section 303-03 . 18. Disconnect the knock sensor electrical connector. 19. Remove the generator bracket-to-cylinder head bolt. 20. Remove the bolts and the cylinder head (6049). 21. Remove the cylinder head gasket and discard. Installation WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel related components. Highly flammable mixtures are always present and may be ignited, resulting in possible personal injury. 1. CAUTION: Do not use abrasive grinding discs to remove gasket material; use only plastic manual scrapers. Do not scratch or gouge the aluminum sealing surfaces. Clean all gasket material from the mating surfaces on the cylinder head and cylinder block. Clean out the bolt holes in the cylinder block. Inspect the cylinder head for flatness. For additional information, refer to Section 303-00 . 2. Install a new head gasket on the cylinder block. 3. CAUTION: Do not attempt to install the cylinder head assembly without assistance. Installation of the cylinder head assembly requires two people or possible injury may occur. CAUTION: The bolts are torque-to-yield and must be replaced or engine damage may occur. Tighten the bolts in three stages in the sequence shown. * Stage 1: Tighten the bolts to 15-25 Nm (12-18 lb-ft). * Stage 2: Tighten the bolts to 35-45 Nm (26-33 lb-ft). * Stage 3: Tighten the bolts an additional 105 degrees. 4. Install the generator bracket-to-cylinder head bolt. * Tighten to 20 Nm (15 lb-ft). 5. Connect the knock sensor electrical connector. 6. Install the thermostat housing. For additional information, refer to Section 303-03 . 7. Install the ignition coil and bracket. For additional information, refer to Section 303-07 . 8. Install the camshafts. For additional information, refer to Camshaft in this section. 9. Connect the upper radiator hose. For additional information, refer to Section 303-03 . 10. Raise and support the vehicle. For additional information, refer to Section 100-02 . 11. Install the heater hoses. For additional information, refer to Section 412-02 . 12. Install the generator and bracket assembly. For additional information, refer to Section 414-02 . 13. Install the power steering pump and bracket assembly. For additional information, refer to Section 211-02 . 14. Connect the fuel lines. For additional information, refer to Section 310-00 . 15. Connect the crankshaft sensor electrical connector.

1984-1995 Honda Civic/ CRX Positive Crankcase Ventilation (PCV) System Repair Manual

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The PCV system is designed to prevent blow-by gas from escaping to the atmosphere by drawing it directly into the intake manifold. The PCV valve contains a spring-loaded plunger which is lifted in proportion to intake manifold vacuum. Under high vacuum, blow-by is returned directly to the manifold through the breather chamber and PCV valve with fresh air. When intake manifold vacuum decreases (wide open throttle) and vacuum in the air cleaner increases, the PCV valve closes and the blow-by is returned through the cylinder head cover breather hose and into the air cleaner. The PCV valve also acts as a check valve when the engine backfires to prevent crankcase explosion. Fig. 1: PCV system components-1984-87 1.5L engines Fig. 2: PCV system components-1988-91 1.6L engines Fig. 3: PCV system components-1992-95 engines Fig. 4: PCV system components-1984-87 carbureted engines SERVICE Positive Crankcase Ventilation (PCV) Valve For PCV valve removal, refer to Routine Maintenance of this information. 1. Locate the PCV valve. With the engine running at idle, use pliers to pinch the PCV hose between the valve and the intake manifold. It should be possible to hear the spring loaded valve click shut. 2. If no click is heard, remove the valve from the engine but leave it connected to the intake manifold. A hissing sound should be heard and vacuum should be felt at the valve inlet. 3. If no vacuum is felt, remove the valve from the intake manifold hose. The engine should stall or almost stall. This will indicate a stuck valve or clogged hose. Check the breather hose for clogging or leaks and replace any defective parts. Exhaust Gas Recirculation (EGR) System FUEL INJECTED ENGINES General Information See Figure 3 The Exhaust Gas Recirculation (EGR) system is used to control emissions measured at the tailpipe. Components included are the EGR valve and controls. The EGR system uses a poppet type valve to regulate the amount of exhaust gas flowing into the intake manifold. The flow path is cast into the cylinder head and does not use any external tubing. A control solenoid valve regulates the amount of vacuum to the EGR valve. A Constant Volume Control (CVC) valve provides a constant amount of vacuum to the control solenoid valve over a wide range of engine vacuum. When servicing or repairing any part of the emissions system, it is absolutely essential to check for any obvious mechanical faults or failures. Remember, a trouble code only indicates which sensor or circuit is affected by the problem. Simple mechanical faults such as a vacuum leak or poor electrical connection can cause a fault code. The EGR valve is not simply open or closed but is modulated by controlling the amount of engine vacuum to the valve diaphragm, up to a maximum of 8 in. Hg of vacuum. The EGR valve has a sensor in the top of the valve that reports valve lift to the ECU (same as ECM, 1992-95). The ECU modulates the position of the control solenoid valve to control the EGR valve lift according to an internal program. Upstream of the control solenoid valve, the CVC provides a constant supply of vacuum so EGR control is precise under all manifold vacuum conditions