Contents Section: Testing & Diagnostics All sections

Emissions Control: Removal & Installation Jeep Compass I рестайлинг

Testing & Diagnostics 10 illustrations ~411 words

INSTALLATION

  1. Install evaporator purge solenoid (1) to body bracket (5). Make sure the tab secures the solenoid to the bracket.
  2. Install quick connect fuel tank hose (2) to evaporator purge solenoid (1).
  3. Install purge hose (3) to evaporator purge solenoid (1).
  4. Connect electrical connector (4) to evaporator purge solenoid (1).
  5. Connect negative battery cable, tighten nut to 5 N.m (45 in. lbs.).

Scheme 35

Scheme 35: DESCRIPTION

It threads into the valve cover.

Scheme 36

Scheme 36: OPERATION

When the engine is not operating or during an engine backfire, the spring forces the plunger back against the seat. This prevents vapors from flowing through the valve.

Scheme 37

Scheme 37

When the engine is at idle or cruising, high manifold vacuum is present. At these times manifold vacuum is able to completely compress the spring and pull the plunger to the top of the valve. In this position there is minimal vapor flow through the valve.

Scheme 38

Scheme 38

During periods of moderate intake manifold vacuum the plunger is only pulled part way back from the inlet. This results in maximum vapor flow through the valve.

REMOVAL

  1. Disconnect negative battery cable.
  2. Remove the engine cover.
  3. Disconnect the EGR solenoid harness connector (3).
  4. Disconnect the EGR vacuum harness (1) from the EGR solenoid (2).
  5. Remove bolts (4) and the EGR vacuum solenoid (2) from the intake manifold.
  1. Install EGR vacuum solenoid (2) onto the intake manifold. Tighten bolts (4) to 9 N.m (80 in. lbs.).
  2. Connect EGR vacuum harness (1) to the EGR solenoid (2).
  3. Connect EGR solenoid harness connector (3).
  4. Install the engine cover.
  5. Connect the negative battery cable.

Scheme 39

Scheme 39: REMOVAL

Scheme 40

Scheme 40
  1. Disconnect the negative battery cable.
  2. Remove the engine cover.
  3. Disconnect the EGR back pressure transducer harness connector (1).
  4. Remove the EGR back pressure transducer (1).

Scheme 41

Scheme 41: INSTALLATION
  1. Using a new sealing washer (1), install the EGR back pressure transducer (2). Tighten transducer (2) to 25 N.m (18 ft. lbs.).
  2. Connect the EGR back pressure transducer harness connector (1).
  3. Install the engine cover.
  4. Connect the negative battery cable.

Scheme 42

Scheme 42: REMOVAL
  1. Disconnect the negative battery cable.
  2. Remove the engine cover.
  3. Remove the four bolts (1) and the EGR tube (2).

Scheme 43

Scheme 43: INSTALLATION

Scheme 44

Scheme 44
  1. Clean all gasket mating surfaces.
  2. Install a new EGR tube gasket (1) onto the EGR actuator.
  3. Install a new EGR tube gasket (1) onto the mixing chamber.
  4. Install the EGR tube (2). Tighten bolts (1) to 9 N.m (80 in. lbs.).
  5. Install the engine cover.
  6. Connect the negative battery cable.