Leakage Inspection: Notes
WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
Special Tools
| Illustration | Tool Name | Tool Number |
|---|---|---|
| 100W/12 Volt DC UV Lamp | 164-R0751 or equivalent |
Material
| Item | Specification |
|---|---|
| MERCON® V Automatic Transmission Fluid XT-5-QM (or XT-5-QMC) (US); CXT-5-LM12 (Canada) |
MERCON® V |
| Automatic Transmission/Power Steering Dye 164-R0751 or equivalent |
- |
Leak Check Test with a Black Light - Automatic Transmission/Power Steering Dye 164-R3701 or equivalent (specifically formulated for ATF) is used to detect a transmission fluid leak.
- Add Automatic Transmission/Power Steering Dye to the transmission fluid. Use 30.0 mL (1 oz.) of dye solution for every 3.8L (4 qt) of transmission fluid.
- 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 - Cooler line(s), cooler line fitting(s) damaged. Refer to TRANSAXLE/TRANSMISSION COOLING .
- Cooler line fitting to case union damaged. Refer to TRANSAXLE/TRANSMISSION COOLING .
- Case damage at case fitting. Refer to TRANSAXLE/TRANSMISSION COOLING .
Fluid cooler line nut-to-case fittings leaking - Damaged or missing O-ring seals. Refer to TRANSAXLE/TRANSMISSION COOLING .
- Fitting(s) not tightened to specifications. Refer to TRANSAXLE/TRANSMISSION COOLING .
Leaks at the fluid cooler - Fluid cooler damage. Refer to TRANSAXLE/TRANSMISSION COOLING .
- Fitting(s) damaged or not tightened to specifications. Refer to TRANSAXLE/TRANSMISSION COOLING .
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 Torque Converter Area Chart.