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Whats leaking and should I be worried?


DhaemonX

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Oil leak diagnostic advice from the 2016 Edge Workshop Manual...

 

Engine Oil Leaks

NOTE: If an overnight drive is done, the fan air or road air blast can cause erroneous readings.

 

NOTE: When diagnosing engine oil leaks, the source and location of the leak must be positively identified prior to repair.

 

Prior to carrying out this procedure, clean the cylinder block, cylinder heads, valve covers, oil pan and flywheel/flexplate with a suitable solvent to remove all traces of oil.

 

Engine Oil Leaks - Fluorescent Oil Additive Method

NOTE: If the factory fill engine oil with dye is present, change the engine oil and the oil filter prior to using the Dye-Lite® Oil-Based Fluid Dye (164-TP33200601).

Use the UV Long-Wave W/12-foot Cord & Alligator Clips (164-R3748) or Leak Tracker UV-LED Leak Detection Flashlight (164-TP8695) to carry out the following procedure for oil leak diagnosis.

  1. Add 29.6 ml (1 oz) of Dye-Lite® Oil-Based Fluid Dye (164-TP33200601) to a minimum of 0.47L (1/2 qt) and a maximum of 0.95L (1 qt) engine oil. Thoroughly premix the oil based fluid dye or it will not have enough time to reach the crankcase, oil galleries and seal surfaces during this particular 15 minute test. The additive must be added through the oil fill. Check the level on the oil level indicator to determine what amount of oil to premix. If it is in the middle of the crosshatch area or below the full mark, use 0.95L (1 qt). If it is at the full mark, use 0.47L (1/2 qt).
  1. NOTE: For best results allow the customer to drive the vehicle for a day.

    Run the engine for 15 minutes. Stop the engine and inspect all seal and gasket areas for leaks using the UV Leak Detector Kit. A fluoresces white area will identify the leak. For extremely small leaks, several hours may be required for the leak to appear.
  1. At the end of test, make sure the oil level is within the upper and lower oil indicator marks. Remove oil as necessary if it registers above the full mark.

Leakage Points - Underhood

Examine the following areas for oil leakage:

  • Valve cover gaskets
  • Cylinder head gaskets
  • Oil cooler, if equipped
  • Oil filter adapter
  • Engine front cover
  • Oil filter adapter and filter body
  • Oil level indicator tube connection
  • Oil pressure switch or oil pressure sensor
  • Turbocharger oil tubes

Leakage Points - Under Engine, With Vehicle on Hoist

Examine the following areas for oil leakage:

  • Oil pan gaskets
  • Oil pan sealer
  • Engine front cover gasket
  • Crankshaft front seal
  • Crankshaft rear oil seal
  • Oil filter adapter and filter body
  • Oil cooler, if equipped
  • Turbocharger oil tubes

Leakage Points - With Transmission and Flywheel/Flexplate Removed

Examine the following areas for oil leakage:

  • Crankshaft rear oil seal
  • Rear main bearing cap parting line
  • Flexplate mounting bolt holes (with flexplate installed)
  • Pipe plugs at the end of oil passages

 

Transmission fluid leak advice...

 

 

Leak Check Test

  1. With the vehicle in NEUTRAL, position the vehicle on a hoist.
  1. Inspect the gasket and sealing areas for evidence of leakage.
  1. Trace the transmission fluid leak to the highest point.
  1. Clean area of suspected leak.
  1. Lower vehicle.
  1. Remove the transmission fluid fill plug.
  1. Add leak detection dye to the transmission fluid. Use 1 fl oz (30 ml) of dye solution for every 4 qt (3.8 L) of transmission fluid.
  1. Road test the vehicle for at least 1 mile with at least 1 application of the TCC .
  1. With the vehicle in NEUTRAL, position the vehicle on a hoist.
  1. If the source of the leak is obvious, repair as required.
  1. After the repair, clean the affected area.

Leakage From Torque Converter Housing

 

Add leak detection dye 1  fl oz ( 30  ml) of dye solution for every 4  qt ( 3.8  L) of transmission fluid.

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  1. Leaks from the torque converter housing can originate from several locations. The paths which the transmission fluid takes to reach the bottom of the torque converter housing is shown in the illustration. The 5 following steps correspond with the numbers in the illustration.
    1. Transmission fluid leaking by the converter hub seal lip will tend to move along the drive hub and onto the back of the torque converter. Except in the case of a total seal failure, transmission fluid leakage by the lip of the seal will be deposited on the inside of the torque converter housing only, near the outside diameter of the housing.
    1. Transmission fluid leakage by the outside diameter of the torque converter impeller hub seal and the case will follow the same path that leaks by the inside diameter of the converter hub seal follow.
    1. Transmission fluid leakage from the converter cover weld or the converter-to-flexplate stud weld will appear at outside diameter of torque converter on the back face of the flexplate and in the converter housing only near the flexplate. If a converter-to-flexplate lug, lug weld or converter cover weld leak is suspected, remove the converter and pressure check.
    1. Transmission fluid leakage from the bolts inside the converter housing will flow down the back of the torque converter housing. Leakage may be from loose or missing bolts.
    1. Engine oil leaks from the rear main oil.
  1. Remove the torque converter.
  1. Using a black light, observe the torque converter housing. Inspect for evidence of dye from the pump bolts, pump seal, and torque converter hub seal. Repair as required.
  1. If the source of the leak is not evident, continue with this procedure to leak test the torque converter.

Good luck!

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