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Home >> Jeep >> 1997 >> Cherokee Country, 4WD, Part Time >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.0L >> Trouble Code Tests >> Test TC-157D- Intermittent Loss Of CMP Or CKP

Test TC-157D- Intermittent Loss Of CMP Or CKP

NOTE: Perform TEST TC-157A before proceeding. For connector terminal ID, see CONNECTOR IDENTIFICATION DIRECTORY. For component location see wiring diagram in the WIRING DIAGRAMS article.
  1. Inspect CKP sensor for proper installation. Correct CKP sensor installation if necessary. If CKP sensor is properly installed, go to next step.
  2. Remove CKP sensor. Inspect flywheel for damage. Repair flywheel as necessary and perform TEST VER-2A. If flywheel is okay, replace CKP sensor and perform TEST VER-2A.
  3. Remove CKP sensor. Inspect crankshaft for damage or misalignment. Repair crankshaft as necessary. If crankshaft is okay, replace CKP sensor and perform TEST VER-2A.
NOTE: A break in test sequence occurs at this point. Sequence skips from TEST TC-157D to TEST TC-160A. No tests have been omitted.
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