Range Rover SE (LP) V8-4.0L (1995)
Thermostat Housing: Customer Interest
Thermostat Housing - Coolant Leak
ISSUE 2
7/4/95
26/01/95/US
SUBJECT
Thermostat Housing - Coolant Leak
MODEL
Range Rover 4.0 SE
AFFECTED VEHICLES
Range Rover 4.0 SE from VIN LP 300001 to LP 309340
DETAIL
Note:
Please remove issue 1, 26/01/95/US, and replace with issue 2. This procedure is to be carried out at new vehicle PDI only, (issue 1 had requested to
complete the pressure test at the first available opportunity) as an enhancement of the "check condition and security of fuel lines and cooling hoses"
instruction. Do not submit a separate claim to complete this check as the time is covered in the PDI time.
A small number of vehicles within the above VIN range may show signs of fatigue around the thermostat housing welded joint. Failure of this joint will
cause a coolant leak.
All vehicles within the above VIN range will require a visual check to be carried out. If any sign of fatigue or coolant leaks are evident, the thermostat
housing will require replacing.
ACTION REQUIRED
During new vehicle PDI, follow the procedure below. Please submit a product report providing vehicle details in instances where a thermostat housing is
replaced.
PARTS INFORMATION
ESR 2857 Thermostat assembly
PROCEDURE
Thermostat Housing - Pressure Test
a)
Check all coolant clips are secure.
b)
With engine cold, remove expansion tank cap, and fit coolant system pressure testing kit.
c)
Pressurize the system to 2O psi.
d)
Ensure that the system remains pressurized at 2O psi for 60 seconds.
e)
If the pressure falls below 18 psi then there is a leak in the system.
f)
Check the entire system for leaks, in particular the bottom hose thermostat.