Chrysler Front Wheel Drive Cars 6-CYL 1988-1995 Repair Information

Visual Inspection

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When a fault code is exhibited by the engine computer it is a good idea to perform this general inspection to make sure that the cause is not a loose wire or a dirty connection.

Perform a visual inspection for loose, disconnected or mis-routed wires and hoses before diagnosing or servicing the fuel injection system. A visual check saves unnecessary test and diagnostic time. A thorough visual inspection includes the following:

  1. Check for correct spark plug cable routing. Ensure the cables are completely connected to the spark plugs and distributor.
  2.  
  3. Check ignition coil electrical connections.
  4.  
  5. Verify the electrical connector is attached to the purge solenoid.
  6.  
  7. Verify vacuum connection at the purge solenoid is secure and not leaking.
  8.  
  9. Verify the electrical connector is attached to the MAP sensor.
  10.  
  11. Check the MAP sensor hose (if so equipped) at the MAP sensor assembly and at the vacuum connection at the intake plenum fitting.
  12.  
  13. Check the alternator wiring connections. Ensure the accessory drive belt has proper tension.
  14.  
  15. Verify the hoses are securely attached to the vapor canister.
  16.  
  17. Verify the engine ground strap is attached at the engine and dash panel.
  18.  
  19. Ensure the heated oxygen sensor connector is attached to the wiring harness.
  20.  
  21. Verify that the distributor connector (if so equipped) is connected to the harness connector.
  22.  
  23. Verify that the coolant temperature sensor connector is attached to the wiring harness.
  24.  
  25. Check that the vacuum hose connection at the fuel pressure regulator and intake plenum.
  26.  
  27. Ensure that the harness connector is securely attached to each fuel injector.
  28.  
  29. Check the oil pressure sending unit electrical connection.
  30.  
  31. Check the hose connections at the throttle body.
  32.  
  33. Check the throttle body electrical connections.
  34.  
  35. Check the PCV system hose connections.
  36.  
  37. If equipped, check the EGR system vacuum hose connections.
  38.  
  39. If equipped, check the EGR tube to intake plenum connections.
  40.  
  41. Inspect the electronic EGR transducer solenoid electrical connector.
  42.  
  43. Ensure that the vacuum connections at the electronic EGR transducer is secure and not leaking.
  44.  
  45. Check the power brake booster and speed connections.
  46.  
  47. Inspect the engine harness to main harness connections.
  48.  
  49. Check all automatic transaxle electrical connections, if so equipped.
  50.  
  51. Check the vehicle speed sensor electrical connector.
  52.  
  53. Inspect the 60-way PCM electrical connector for damage or spread terminals. Verify that the 60-way connector is fully inserted into the socket of the PCM. Ensure wires are not stretched or pulled out of the connector.
  54.  
  55. Check the air conditioning, starter, automatic shutdown relay, fuel pump, and radiator fan relay connections.
  56.  
  57. Check the battery cable connections.
  58.  
  59. Check the hose and electrical connections at the fuel pump. Ensure that the connector is making contact with the terminals on the pump.
  60.  

 
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