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Home >> Ford >> 1998 >> Econoline XLT >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine - 7.3L (99F E Series & 99F F450/550) V8 Turbo Diesel - VIN F) >> Engine Oiling >> Oil Cooler Assembly >> Oil Cooler Leakage Test

Oil Cooler Leakage Test

WARNING: This page is about a different variant/trim than selected.
  1. Using NEW gaskets, install Oil Cooler Leakage Tester (014-00944), on 1996 models or (014-00726) on 1997 models, onto oil cooler assembly. Apply 40 psi (2.8 kg./cm2 ) of air pressure on fitting on coolant side of oil cooler front header.
  2. Inspect for air leakage at plastic tubes and at oil cooler front and rear header cover plates. If no air leakage exists, place plastic tubes into a cup of water and check for bubbles.
  3. If no bubbles exist, no internal leak exists and oil cooler is okay. If bubbles exist, an internal leak exists in oil cooler. If internal leak exists, disassemble oil cooler assembly and replace oil cooler.
  4. Release air pressure. Remove oil cooler leakage tester.
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