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2001 chevy s10 evaporative emission control system diagram

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2004 Chevrolet Chevy K Silverado – 4WD Evaporative Emission (EVAP) Canister Vent Solenoid Valve Replacement Pickup

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Evaporative Emission (EVAP) Canister Vent Solenoid Valve Replacement Pickup Removal Procedure Important Clean the evaporative emission (EVAP) connections and surrounding areas prior to disconnecting the fittings in order to avoid possible system contamination. 1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information. 2. Remove the harness clip from the canister vent solenoid (CVS) line. 3. Disconnect the CVS electrical connector. 2004 Chevrolet Chevy K Silverado – 4WD 4. If the vehicle is equipped with a 6 ft box, disconnect the EVAP CVS line from the canister. 5. Remove the CVS clip from the frame crossmember. 6. Push in the retainer and remove the CVS from the fuel tank clip. 7. If the vehicle is equipped with a 8 ft box, disconnect the EVAP CVS line from the canister. 8. Remove the CVS clip from the frame crossmember. 9. Push in the retainer and remove the CVS from the fuel tank clip. Installation Procedure 1. If the vehicle is equipped with a 8 ft box, install the CVS to the fuel tank until the clip engages. Important On vehicles equipped with a 8 ft box, the CVS line is routed below the frame crossmember. 2. Install the CVS clip to the frame crossmember. 3. Connect the EVAP CVS line to the canister. 4. If the vehicle is equipped with a 6 ft box, install the CVS to the fuel tank until the clip engages. Important On vehicles equipped with a 6 ft box, the CVS line is routed above the frame crossmember. 5. Install the CVS clip to the frame crossmember. 6. Connect the EVAP CVS line to the canister. 7. Connect the CVS electrical connector. 8. Install the harness clip to the canister vent solenoid (CVS) line. 9. Lower the vehicle.

1984-1998 Jeep Wagoneer/ Commando/ Cherokee Emission Controls Crankcase Ventilation System (PCV/CCV)

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CCV Fitting See Figures 2 and 3 1. With the engine running, remove the CCV fitting. a. If the fitting is not plugged, a hissing noise will be heard as air passes through the valve. A strong vacuum should also be felt when a finger is placed over the fitting. b. Install the CCV fitting. c. Remove the fresh air hose from the air cleaner assembly and loosely hold a piece of paper over the open end of the hose. After allowing about one minute for the crankcase pressure to reduce, the paper should be sucked against the opening with a noticeable amount of force. 2. Turn the engine OFF . Remove the metered orifice fitting, and check for a plugged condition. A clicking noise should be heard to indicate that the valve mechanism is free. 3. If the crankcase ventilation system meets the tests in Steps 1 and 2 above, no further service is required. If not, the CCV fitting must be cleaned and the system checked again. 4. If Step 1c fails when the CCV fitting is cleaned, it will be necessary to replace the molded vacuum hose with a new one, and to clean the metered orifice port. 5. Clean or replace the engine air cleaner filter element with a new one-for more details, refer to the air cleaner procedure located in General Information & Maintenance. Fig. 2: CCV system diagram for 4.0L engine Fig. 3: CCV system diagram for the 2.5L engine Evaporative Emission Control System OPERATION The evaporative emission control system prevents the release of unburned hydrocarbons, from gasoline or gasoline vapor, into the atmosphere. When pressure in the fuel tank is below 3 psi (20 kPa), the pressure relief/rollover valves open allowing fuel vapors to flow to the evaporative canister where they are absorbed by a charcoal mixture. This prevents excessive pressure buildup in the fuel system. Most canisters are equipped with a calibrated orifice at the inlet to the canister.

2003 Honda ODYSSEY Intake Manifold Removal and Installation Manual

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Removal 1. Remove the intake manifold cover (A) and ignition coil cover(s) (B). 1999-2001 models: 2002-2004 models: 2. Remove the evaporative emission (EVAP) canister hose (A) (1999-2001 models) or vacuum hose (A) (2002-2004 models). 3. Remove the vacuum hose(s) (B) and breather pipe (C), then remove the intake air duct (D). 1999-2001 models: 2002-2004 models: 4. Remove the throttle cable (A) and cruise control cable (B) by loosening the locknuts (C), then slip the cable ends out of the accelerator linkage. Take care not to bend the cables when removing them. Always replace any kinked cable with a new one. 5. Remove the engine wire harness connectors and wire harness clamps from the intake manifold. *Intake air temperature (IAT) sensor connector *Idle air control (IAC) valve connector *Throttle position (TP) sensor connector *Manifold absolute pressure (MAP) sensor connector *Evaporative emission (EVAP) canister purge valve connector (2002-2004 models) 6. Remove the brake booster vacuum hose (A) and positive crankcase ventilation (PCV) hose (B). 7. Remove the vacuum hoses (C) (1999-2001 models). 1999-2001 models: 2002-2004 models: 8. Remove the breather hose (A) and water bypass hoses (B), then plug the water bypass hoses. 9. Remove the EVAP canister hose (C) (2002-2004 models). 1999-2001 models:

2005 Ford F-Super Duty 250-550 Auxiliary Brake System/ Trailer Brake Control (TBC) Module Repair Manual

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connected to the vehicle, the TBC module will enter a “sleep mode” but still continue to send a PWM voltage signal to the trailer tow connector every 4 seconds to detect when a trailer is connected. When the ignition key is in the RUN position and the module is in sleep mode, pressing a gain button or sliding the manual switch will cause the module to “wake up”. If a trailer is not connected to the vehicle, the display should prove out for 3 seconds, then the trailer icon should illuminate red and the IC message center should display TRAILER DISCONNECTED or CHECK TRAILER. If a trailer is connected to the vehicle, the display should prove out for 3 seconds and then the trailer icon should illuminate green. Inspection and Verification NOTE: A trailer brake emulator tool is available to verify that the TBC module and vehicle wiring are functioning correctly. 1. Verify the TBC system is correctly installed by checking that the vehicle is equipped with a brake pressure transducer on the master cylinder. If the brake pressure transducer is not present, then the TBC system has been erroneously installed. 2. Verify the customer concern. 3. NOTE: The TBC does not function with electric-over-hydraulic or surge trailer brake types. Verify that the trailer brakes are electric-actuated drum type brakes. 4. Verify the stoplamps operate correctly by applying and releasing the brake pedal with the ignition switch in the OFF position and the trailer disconnected. If the stoplamps do not operate correctly, refer to Section 417-01 . If the stoplamps operate correctly, proceed to the next step. 5. Visually inspect for obvious signs of mechanical or electrical damage. Visual Inspection Chart 6. If the cause is not visually evident, connect the scan tool to the data link connector (DLC) and select the vehicle to be tested from the scan tool menu. If the scan tool does not communicate with the vehicle: * check that the program card is correctly installed. * check the connections to the vehicle. * check the ignition switch position. 7. If the scan tool still does not communicate with the vehicle, refer to the scan tool operating manual. 8. Carry out the scan tool data link test. If the scan tool responds with: * CAN, ISO, or UBP circuit fault; all electronic control units no response/not equipped, refer to Section 418-00 . * No response/not equipped for the TBC, GO to Pinpoint Test A . * System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs, and carry out self-test diagnostics for the TBC and the antilock brake system (ABS) module. 9. If the DTCs retrieved are related to the concern, go to the Trailer Brake Control (TBC) module Diagnostic Trouble Code (DTC) Chart or Anti-Lock Brake System (ABS) Module Diagnostic Trouble Code (DTC) Chart to continue diagnosis. 10. If no DTCs related to the concern are retrieved, GO to Symptom Chart to continue diagnosis. NOTE: Always retrieve the continuous DTCs after running the self-test.

1998 Chevy Truck S10/ T10 Blazer 2WD Evaporator Core Service and Repair Manual

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Manual A/C REMOVAL PROCEDURE CAUTION: Refer to Battery Disconnect Caution in Service Precautions. 1. Disconnect the negative battery cable. 2. Remove the right side instrument panel sound insulator. 3. Remove the instrument panel storage compartment. 4. Disconnect the passenger side SIR. 5. Remove the lower right instrument panel mounting bolt. 6. Remove the left and right front speaker grilles. 7. Remove the center instrument panel sound insulator. 8. Remove the left side instrument panel sound insulator. 9. Disconnect the park brake release cable. 10. Remove the knee bolster. 11. Remove the lower left instrument panel mounting bolt. 12. Remove the BCM. 13. Disconnect the driver side SIR. 14. Remove the instrument panel cluster. 15. Remove the radio. 16. Remove the HVAC control assembly. 17. Remove the steering column retaining retaining nuts. 18. Lower the steering column. 19. Remove the instrument panel carrier. 20. Remove the left and right cowl vent grille panels. 21. Disconnect the underhood lamp electrical connector, if equipped. 22. Remove the hood. 23. Remove the VCM. 24. Remove the coolant recovery tank. 25. Remove the heater hoses. 26. Disconnect the electrical connectors from the grille mounted lamps. 27. Remove the right front headlamp assembly. 28. Remove the front bumper. 29. Remove the right wheelhouse panel. 30. Disconnect the radio antenna cable. 31. Disconnect the electrical connector for the horn. 32. Remove the right fender. 33. Remove the evaporator case heat shield, if equipped. 34. Remove the blower motor resistor. 35. Remove the evaporator case bolts and screws. 36. Remove the accumulator. 37. Remove the condenser to the evaporator line fitting. 38. Remove the bolts which retain the evaporator case to the bulkhead. 39. Pull back lightly on the heater case to remove the evaporator case. 40. Remove the evaporator case retaining screws. 41. Disassemble the evaporator case sections, and remove the evaporator core. NOTE: If replacing the evaporator core, remove the expansion (orofice) tube and install it into the new core. INSTALLATION PROCEDURE 1. Install the evaporator core. 2. Assemble the evaporator case sections. 3. Install the evaporator case retaining screws. Tighten to 2.5 N.m (24 in lb) . 4. Install the evaporator core assembly to the vehicle. 5. Install the bolts which retain the evaporator case to the bulkhead. Tighten the bolts to 4.5 N.m (40 lb in) . 6. Install the condenser to the evaporator line fitting. 7. Install the accumulator. 1998 Chevy Truck S10/T10 Blazer 2WD 8. Install the evaporator case bolts and screws. Tighten to 2.5 N.m (24 In in) . 9. Install the blower motor resistor. 10. Install the evaporator case heat shield, if equipped. 11. Install the right fender. 12. Connect the electrical connector for the horn. 13. Install the radio antenna cable. 14. Install the right wheelhouse panel. 15. Install the front bumper. 16. Install the right front headlamp assembly. 17. Connect the electrical connectors to the grille mounted lamps. 18. Install the heater hoses. 19. Install the coolant recovery tank. 20. Install the VCM. 21. Install the hood. 22. Connect the underhood lamp electrical connector, if equipped. 23. Install the left and right cowl vent grille panels. 24. Install the instrument panel carrier. 25. Reposition the the steering column, and install the steering column retaining nuts. 26. Install the HVAC control assembly. 27. Install the radio. 28. Install the instrument panel cluster. 29. Connect the driver side SIR. 30. Install the BCM. 31. Install the lower left instrument panel mounting bolt. 32. Install the knee bolster. 33. Connect the park brake release cable. 34. Install the left side instrument panel sound insulator. 35. Install the center instrument panel sound insulator. 36. Install the left and right front speaker grilles. 37. Install the lower right instrument panel mounting bolt. 38. Connect the passenger side SIR. 39. Install the instrument panel storage compartment. 40. Install the right side instrument panel sound insulator. 41. Connect the negative battery cable. 42. Inspect the system for leaks.