Discovery I (LJ) V8-3.9L (1994)
Oil Pressure Sensor: All Technical Service Bulletins
Campaign - Oil Pressure Switch Replacement
No:
H483
Ref:
TIB 12/03/97/NAS
TIB 12/04/97/NAS
Issue:
2
Date:
01/30/98
Service Action
Oil Pressure Switch Replacement
AFFECTED VEHICLE RANGE:
Defender (LD)
RA927939 to VA128421
Discovery (LJ)
RA049523 to TA200000
SA500000 to VA557347
TA700000 to WA747771
Range Rover Classic (LH)
RA635508 to SA664120
Range Rover (LP)
SA300190 to WA379749
Updated information is shown by asterisks.
SITUATION:
OIL PRESSURE SWITCH LEAKAGE
Oil pressure switches on Land Rover vehicles may leak because diaphragm material within the switch does not meet specifications. This can cause oil
seepage from the switch cap to the body seal, or from the vent hole around the electrical blade insert.
RESOLUTION:
REPLACE ORIGINAL SPECIFICATION OIL PRESSURE SWITCHES ON AFFECTED VEHICLES
*All vehicles within the above VIN ranges are to be inspected during the next service visit.*
If the oil pressure switch has not been replaced with either a new style pressure switch (light gray insert) or with the PRIDE specified switch (black and
red insert), replace the switch with STC4104K.
PARTS INFORMATION:
NOTE:
Pressure switch STC4104K is packaged with both a rubber 0-ring (for serpentine belt vehicles) and a copper washer (for V-belt vehicles).
STC4104K
Oil pressure switch (Replaces AMR2092 and LRNA4641)
WARRANTY CLAIMS:
*
NOTE:
Correct Option 2 time will be automatically selected by LRNA warranty computer program based on vehicle upon which procedure has been
performed.
CAMPAIGN H483
Option 1
Time 0.10 hrs
Inspect vehicle and determine correct oil pressure switch is installed. Affix campaign sticker.
Option 2
Time 0.55 hrs.
Replace Range Rover oil pressure switch
Option 2
Time 0.45 hrs.
Replace Discovery and Range Rover Classic oil pressure switch
Option 2
Time 0.30 hrs.
Replace Defender oil pressure switch