Leakage Inspection: Notes

2009 Ford Edge Sport, FWDSECTION Notes
WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
Special Tools

Illustration Tool Name Tool Number
GF0000174Courtesy of FORD MOTOR CO.
100W/12 Volt DC UV Lamp 164-R0751 or equivalent
Material

Item Specification
Dye-Lite® ATF/Power Steering Fluid Leak Detection Dye
164-R3701 (Rotunda)
-
MERCON® V Automatic Transmission Fluid
XT-5-QM (or XT-5-QMC) (US); CXT-5-LM12 (Canada)
MERCON® V

Leak Check Test with a Black Light -  Dye-Lite® ATF/Power Steering Fluid Leak Detection Dye 164-R3701 or equivalent (specifically formulated for ATF) is used to detect a transmission fluid leak.

  1. Add dye to the transmission fluid. Use one 30.0 mL (1 oz.) of dye solution for every 3.8L (4 qt) of transmission fluid.
  2. Start and run the engine until the transaxle reaches its normal operating temperature. Observe the back of the cylinder block and top of the torque converter housing for evidence of fluid leakage. Raise the vehicle on a hoist and run the engine at fast idle, then at engine idle, occasionally shifting to the DRIVE and REVERSE ranges to increase pressure within the transaxle. Observe the front of the flexplate, back of the cylinder block (in as far as possible), inside the torque converter housing and the entire case until fluid leakage is evident and the probable source of leakage can be determined.
EXTERNAL FLUID LEAKS

Leak Path Possible Source
Leaks at the fluid pan to case
  • Pan bolts not tightened to specification.
  • Pan gasket damaged.
  • Case pan rail damaged.
Fluid cooler lines or fittings leaking
Fluid cooler line nut-to-case fittings leaking
Leaks at the fluid cooler
Leaks at external sensors
  • Damaged or missing O-ring seals.
  • Screw not tightened to specification.
Leaks at the manual control lever seal
  • Damaged or missing lever seal.
Leaks at the solenoid body harness connector
  • Solenoid body harness connector O-ring seal(s), either on the harness end or the solenoid body, damaged or missing.
Fluid leakage in torque converter area
  • For possible sources, refer to Fluid Leakage in the Torque Converter Area Chart.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.