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Home >> Jeep >> 1996 >> Grand Cherokee Limited, 5.2 Y >> Repair and Diagnosis >> External Pages >> Different car >> Section 9 (Engine Controls - Tests W/Codes - 3.5L) >> Self-Diagnostic Tests >> Test NTC-9A - Checking Solenoid Operations

Test NTC-9A - Checking Solenoid Operations

WARNING: This page is about a different car, the 1994 Eagle Vision, 1994 Dodge Intrepid, 1994 Chrysler New Yorker, 1994 Chrysler LHS, and 1994 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION DIRECTORY TABLE  . For wiring diagram, see WIRING DIAGRAMS  section. After each repair, perform TEST VER-2  .
  1. Using DRB, actuate purge solenoid. While touching top of canister purge solenoid, feel for operation. If purge solenoid does not operate, replace canister purge solenoid. If purge solenoid operates, go to next step.
  2. Actuate EGR solenoid. While touching top of EGR valve, feel for operation. If EGR solenoid does not operate, replace EGR solenoid. If EGR solenoid operates, go to next step.
    NOTE: A break in step numbering sequence occurs at this point. Procedure skips from step 2) to step 4). No test procedures have been omitted.
  3. Using DRB, actuate Manifold Tuning Valve (MTV) solenoid. While touching top of MTV solenoid, feel for operation. MTV solenoid is located on right front strut tower. If MTV solenoid does not operate, replace MTV solenoid. If MTV solenoid operates, go to next step.
  4. Start engine and let idle for one minute to build up vacuum. Turn engine off. Turn ignition on. Actuate MTV valve. If MTV valve opens and closes fully when actuated, MTV solenoid and valve are operating properly. Test is complete. If MTV valve does not open and close fully when actuated, go to next step.
  5. Inspect MTV valve vacuum hose for leaks. Repair as required. If no vacuum leaks are observed, replace MTV valve.