Expedition 2WD V8-5.4L SOHC VIN L (1997)
DEALER CODING
CONDITION
BASIC PART NO.
CODE
5E269
D9
OASIS CODES: 304000, 306000, 504000, 509000, 597997, 702000, 702300, 703000, 703300
Service Procedure
1.
Drive the vehicle and verify the concern. Record all speeds, engine rpms and transmission gears that correspond to any boom, rumble or vibration
that occurs. If condition is cyclical, affected by changing gears (3rd or OD), or the condition changes during coast, cruise, tip-in or out, refer to
Page 205-00-10 of the 1998 Expedition/Navigator Workshop Manual.
2.
^
If the concern is a boom, try to duplicate the concern by closing the back door with all other doors and windows closed.
^
If a boom was duplicated, pull the headliner and try to slide a 3x5" card between the roof bows and the roof.
^
It the card was able to fit between the bows, reattach the bows to the roof using 3M(R) Panel Adhesive Urethane Sealer (or equivalent). After
the product is dry, drive the vehicle and re-evaluate the concern.
^
If the concern is corrected, return the vehicle to the customer. If the concern is still present, continue with the following Steps.
3.
^
Properly calibrate wheel balancer and check the balance of the tires without removal of the factory weights.
^
If tires are out of balance, rebalance and drive the vehicle.
^
If tires do not require balancing, refer to Section 204-00, Pinpoint Tests G5 through G10 of the 1997 Workshop Manual.
^
If the concern is not resolved, proceed to Step 4.
4.
^
Measure the driveshaft runout at both ends and in the middle. The maximum specification is 0.76 mm (0.030").
^
If the runout is over 0.76 mm (0.030"), remove the driveshaft and measure the flange runout per Section 205-00 of the Workshop Manual.
^
If the flange runout is within specification, replace the driveshaft. Check and make sure runout of the new driveshaft is within specification.
Recheck the vehicle for the vibration concern.
^
If concern is present, proceed to Step 5.
5.
^
Index the driveshaft in 90 degree increments around the rear axle flange and drive the vehicle after each reindexing.
^
If the vibration was corrected at any time, leave driveshaft in that position and return vehicle to customer.
^
If concern is not resolved, proceed to Step 6.
6.
Field balance driveshaft per Section 205-00 of the Workshop Manual. If concern still exists, proceed to Step 7.
7.
Neutralize the engine mounts and exhaust system per the Workshop Manual, Section 100-04, and drive the vehicle. If problem is not corrected,
proceed to Step 8.
NOTE
IF PROBLEM STILL EXISTS WITH TRANSMISSION MOUNT DISCONNECTED, DO NOT REPLACE WITH NEW BRACKET AND
HANGER.
