Vanden Plas L6-4.0L (1990)
Evaporator Case: Technical Service Bulletins
A/C Condensate Drains - Blocked
POOR CONDENSATE
SECTION: 82
DRAINAGE
No: 20
Model:
ALL Date: DECEMBER, 1990
KEY POINTS:
DRILLING DRAINAGE HOLE
ISSUE:
Blocked A/C condensate drains.
ACTION:
Add a condensate drainage hole using Service Tool JAG 1510.
PROCEDURE- (XJ-S VIN Range 145000 - 168340):
^
Assemble the guide bushing and carbide burr into the collet of a compressed air high speed grinder so that 3/4" of the burr is engaged into the
collet. Tighten the chuck nut.
CAUTION:
Electrical equipment must not be used because of the possibility that condensation may be trapped inside the A/C case.
^
Remove both underdash panels and console side panels.
^
Remove both footwell air ducts.
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Remove tbe rubber adaptors from the A/C case drain stubs and position the drain tubes clear of the area.
^
Slide the guide bushing into the left-hand case stub and fully seat it up to the flange.
FIG. 1
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Operate the high speed grinder at its fastest speed and gradually push the carbide burr into contact with the deflector plate inside the A/C case,
(fig. 1).
^
Apply light pressure until the tool cuts through the deflector plate, (Fig. 1)
NOTE:
Do not make the hole larger than 3/16", as it can adversely affect drainage.
^
Using rags, collect any water that drains from the A/C case to prevent trim/carpet damage.
NOTE:
Debris will wash from the internal drain area when the A/C is in operation.
^
Repeat the operation for the right-hand drain stub.
^
Install the condensation drain adaptor, footwell air ducts, and underdash panels.
