Leakage Inspection: Notes

SPECIAL TOOL(S)

Courtesy of FORD MOTOR CO.

100W/12 volt DC UV Lamp 164-R0751

MATERIALS

Item	Specification
Motorcraft Continuously Variable Chain Type Transmission Fluid XT-7-QCFT (US); CXT-7-LCF12 (Canada)	WSS-M2C933-A
Automatic Transmission/Power Steering Dye 164-R3701 or equivalent	-

CAUTION: Do not try to stop the fluid leak by increasing the torque beyond specifications. This may cause damage to the case threads.

Leakage at the transaxle pan-to-case gasket often can be stopped by tightening the attaching bolts to 11 N.m (8 lb-ft). If necessary, install a new pan case gasket.

Check the fluid tubes and fittings between the transaxle and the auxiliary cooler. If leakage cannot be stopped by tightening the clamps or the cooler tube retainer, install new parts. When fluid is found leaking between the transaxle case and the cooler tube fittings, check for a missing or damaged O-ring seal, then tighten the fitting to maximum specification.

If the leak continues, install new fluid cooler tubes.

If leakage is found at the manual control lever, install a new seal.

If leakage is found at the transaxle internal harness connector, install a new O-rings.

When diagnosing a transmission fluid leak, especially when the fluid appears to be gathering or collecting on the fluid pan area, verify the actual leak path. Fluid will migrate to the lowest point on the transmission. What may appear at first glance as a fluid pan leak may actually be coming from some other point on the transmission.

The first step should be verified that the leak is actual transmission fluid. Next verify exactly what area of the transmission the fluid is coming from prior to changing any parts or re-tightening any bolts.

External leak points for CVT:

EXTERNAL LEAK POINTS

Leak Source	Possible Cause
Transmission Fluid Pan	Pan bolts not tightened to specification Pan gasket damaged Case rail damaged Pan or drain plug damaged
Fluid Cooler Tubes	Damaged or missing O-ring seals on tube at transmission or cooler Damaged cooler tubes Cooler tube not installed correctly Fluid cooler damaged at cooler tube connection Transaxle damaged or cooler tube connection
Manual Control Level Seal	Seal damaged or missing
Half Shaft Seals	Damaged or missing seal Damaged half shaft Damaged case
Transmission to PTU connection	Damaged or missing PTU input seal
Split Flange case (case to converter housing)	Missing or damaged case gasket Damaged case or converter housing
High Pressure Filter Cover	Damaged cover or case Damaged or missing cover O-ring seal
Primary Variator Cover	Damaged cover or case Missing or damaged cover gasket Cover bolts not tightened to specification
Secondary Variator Cover	Damaged cover or case Missing or damaged cover gasket Cover bolts not tightened to specification
Side Shaft Gear Cover	Missing or damaged dust cover seal Damaged or missing cover O-ring seal Damaged cover or case
Transaxle Case Connector Guide Sleeve	Missing O-ring seal Damaged case or connector guide sleeve
Transaxle Vent Tube	Incorrect fluid level Internal mechanical issue causing overheating
Transaxle Fluid Level Indicator	Incorrect fluid level Internal mechanical issue causing overheating Fill tube not installed into grommet correctly
Transaxle Fluid Level Indicator	Grommet damaged or not installed into transaxle correctly Case damaged
Transaxle Fill Plug	Missing or loose fill plug Damaged case
Converter Housing or Torque Converter Area	For possible sources, refer to LEAKAGE INSPECTION .