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Home >> Ford >> 2011 >> Explorer Base, AWD, 6F55 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine System - General Information >> Diagnostic Routine (S) >> Diagnostic Routine A >> Pinpoint Test
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Pinpoint Test

  1. CHECK THE CRANKSHAFT END PLAY
    1. Check the crankshaft end play. Refer to Crankshaft End Play  in this section.
    • Is the crankshaft end play within specification? 
  2. VERIFY THE CAMSHAFT BEARING CAPS ARE NOT DAMAGED AND TIGHT
    1. Check that the camshaft bearing caps are not damaged and the bolts are properly tightened. Refer to the Specification chart in the appropriate engine section.
    • Are the camshaft bearing caps loose or damaged? 
    • Yes:  REPAIR as necessary. REFER to CAMSHAFT .
    • No:  GO to 3  on page 2.
  3. CHECK CAMSHAFT JOURNAL-TO-BEARING CLEARANCE
    1. Check the camshaft journal-to-bearing clearance. Refer to the Specification chart in the appropriate engine section.
    • Is camshaft journal-to-bearing clearance within specification? 
    • Yes:  GO to 4  on page 2.
    • No:  REPAIR as necessary. REFER to CAMSHAFT .
  4. CHECK FOR RESTRICTED OIL FLOW
    1. Verify the oil supply and return passages are not plugged and clean of debris. Refer to the oil flow chart in the appropriate engine section.
    • Is oil flow restricted? 
  5. CHECK THE TIMING CHAIN TENSIONERS FOR DAMAGE AND VERIFY THE BOLTS ARE TIGHT
    1. Check that the timing chain tensioners are not damaged or the bolts are loose. Refer to the Specification chart in the appropriate engine section.
    • Are the timing chain tensioners damaged or bolts loose? 
  6. CHECK THE OIL PUMP PICKUP TUBE AND SCREEN FOR DAMAGE
    1. Check that the oil pump pickup tube and screen is not plugged, cracked or that the bolts are loose. Refer to the Specification chart in the appropriate engine section.
    • Is the oil pump screen and pickup tube damaged or loose? 
  7. CHECK THE OIL PUMP FOR DAMAGE
    1. Verify the oil pump is not damaged.
    • Is oil pump damaged? 
    • Yes:  REPAIR as necessary. REFER to OIL PUMP .
    • No:  GO to 8  on page 3.
  8. CHECK CRANKSHAFT MAIN BEARING JOURNAL-TO-BEARING CLEARANCE
    1. Check the crankshaft main bearing journal-to-bearing clearance. Refer to the Specification chart in the appropriate engine section.
    • Is crankshaft main bearing journal-to-bearing clearance within specification? 
  9. CHECK CONNECTING ROD BEARING JOURNAL-TO-BEARING CLEARANCE
    1. Check the connecting rod bearing journal-to-bearing clearance. Refer to the Specification chart in the appropriate engine section.
    • Is connecting rod bearing journal-to-bearing clearance within specification? 
    • Yes:  The concern may have been caused by debris or an incorrect assembly. REPEAT the oil pressure test. REFER to Oil Pressure Test .
    • No:  REPAIR as necessary. REFER to ENGINE - 3.5L TI-VCT .
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