Leakage Inspection: Notes

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. 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

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-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.

Check the fluid filler tube connection at the transmission case. If leakage is found here, install a new grommet.

Check the fluid lines and fittings between the transmission and the cooler in the radiator tank for looseness, wear or damage. If leakage cannot be stopped by tightening a fluid tube nut, install new parts. When fluid is found leaking between the case and cooler tube fitting, check for a missing or damaged O-ring, then tighten the fitting to maximum specification.

If the leak continues, install a new cooler tube fitting and tighten to specification. The same procedure should be followed for fluid leaks between the radiator cooler and the cooler tube fittings.

Check the engine coolant in the radiator. If transmission fluid is present in the coolant, the cooler in the radiator is probably leaking.

The cooler can be further checked for leaks by disconnecting the tubes for the cooler fittings and applying no more than 345 kPa (50 psi) air pressure to the fittings. Remove the radiator cap to relieve the pressure buildup at the exterior of the oil cooler tank. If the cooler is leaking and/or will not hold pressure, install a new cooler.

If leakage is found at the transmission range selector lever, install a new seal.

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

Fig 1: External Sealing

Courtesy of FORD MOTOR CO.

Item	Part Number	Description
1	7902	Torque converter
2	7A248	Front pump seal
3	7A248	Front pump seal
4	N605789-S101	Bolt
5	7A106	Front pump body assembly
6	7A136	Pump gasket
7	390318-S2	Pipe plugs - 1/8-27 Dryseal tapered
8	7005	Case
9	7H103	Turbine shaft speed (TSS) sensor
10	7034	Vent
11	N811757-S100	Speed sensor seal
12	7H103	Output shaft speed (OSS) sensor
13	7B498	Manual control lever seal assembly
14	7086	Extension housing gasket
15	7A039	Extension housing (rear wheel drive [RWD])
16	N803737-S1101	Bolt - M8-1.25 x 30
17	7052	Oil seal
18	7Z276	Seal - bulkhead assembly
19	7G276	Bulkhead assembly wiring connector
20	7G276	Molded lead frame
21	7A194	Transmission fluid pan
22	7A191	Gasket
23	7D273	Transmission fluid tube case fittings