A/T - 4R70W Vibration/Fluid Leak At Extension Housing
Article No.99-18-1
09/06/99
^ CALIBRATION - MAXIMUM SPEED RECALIBRATION
TO 126 MPH (202 KM/H) - CROWN VICTORIA
POLICE VEHICLES BUILT THROUGH 7/30/1999
ONLY
^ TRANSMISSION - 4R70W - VIBRATION/FLUID LEAK
AT EXTENSION HOUSING - CROWN VICTORIA
POLICE VEHICLES BUILT THROUGH 7/30/1999
ONLY
FORD:
1999 CROWN VICTORIA
ISSUE
Some 1999 Crown Victoria Police vehicles may exhibit a vibration and/or transmission fluid leak from the extension housing seal area. This may be due to extended high speed operation which may cause the extension housing bushing or seal to walk/spin out due to excessive driveshaft flexing.
ACTION
Inspect the extension housing bushing. If the extension bushing/seal is spun and/or has walked out, replace the extension housing assembly and gasket. Verify the vehicle has "GNX" level rear springs and that the revised Metal Matrix Composite (MMC) driveshaft is installed. The revised driveshaft does not flex as much during sustained high speed operation and should reduce the possibility of fluid leaks. Refer to the following Service Procedure for details
SERVICE PROCEDURE
1. Raise the vehicle on a hoist and inspect the transmission extension bushing for damage and transmission fluid leaking from the extension housing seal area. In addition, verify that the vehicle is equipped with the MMC driveshaft and the latest level coil springs (GNX). The MMC driveshaft can be identified by the pink/green stripes around the driveshaft tube. The aluminum driveshaft will have pink/blue/orange stripes.
2. If the bushing is found to be damaged, remove the driveshaft and transmission extension housing per the appropriate Workshop Manual Section.
3. Replace the Extension Housing Assembly (F5UZ-7A039-A) and Extension Housing Gasket (F7AZ-7086-A) following the procedure outlined in the Workshop Manual.
4. If the vehicle is equipped with an aluminum driveshaft, the driveshaft must be replaced with the revised MMC Driveshaft (XW7Z-4602-AA).
NOTE
THE INDEX MARKS ON THE OUTPUT SHAFT, DRIVESHAFT, AND REAR AXLE MUST BE ALIGNED. THE BALANCE MARK ON THE OUTPUT SHAFT AND THE BALANCE MARK ON THE DRIVESHAFT MUST BE ALIGNED (FIGURE 1). FURTHER, ALIGNMENT OF THE INDEX MARKS ON THE REAR DRIVESHAFT TUBE AND REAR AXLE FLANGE MUST BE PERFORMED (FIGURE 2).
5. If the vehicle is equipped with "EPS" level rear springs, replace the rear springs with the revised "GNX" level Springs (F8AZ-5560-GA). Refer to the Workshop Manual for details.
6. Using New Generation Star (NGS) Tester, check the Powertrain Control Module (PCM) calibration. Refer to Step 7.
7. Access PCM, select "MODULE I.D.". If the module part number is XW7F-CE then the vehicle has the latest level calibration (9VNA-AA) with a vehicle maximum speed of 202 km/h (126 mph). Do not reprogram the PCM. If the module l.D. is not XW7F-CE, reprogram the PCM to the latest level (9VNA-AA) using an NGS Tester or Service Bay Diagnostic System (SBDS).
8. Verify transmission fluid level.
Obtain an Authorized Modifications Decal (FPS 8262 - obtainable through DOES II, 25/pkg) and list the date, dealer number, and summary of modifications performed. Select a prominent place adjacent to the Vehicle Emission Control Information Decal suitable for installing the Authorized Modifications Decal. Clean the area, install the decal, and cover it with a clear plastic decal shield.
PART NUMBER PART NAME
F5UZ-7A039-A Extension Housing Assembly
F7AZ-7086-A Gasket
XW7Z-4602-AA Driveshaft
F8AZ-5560-GA Rear Coil Springs
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage
OPERATION DESCRIPTION TIME
991801A Replace Extension And 1.6 Hrs.
Driveshaft Housing
Assembly (Do Not Use
With Operation B)
991801B Replace Driveshaft 0.7 Hr.
Assembly Only If Required
(Do Not Use With
Operation A)
991801C Replace Rear Springs 0.9 Hr.
991801D Inspect For Calibration 0.3 Hr.
991801E Reprogram Powertrain 0.3 Hr.
Control Module (PCM)
DEALER CODING
CONDITION
BASIC PART NO. CODE
4602 02
OASIS CODES: 501000, 503000, 504000, 510000, 597997, 614000, 614600, 703000, 703200, 703300, 703400