626 LX L4-2.0L DOHC (1999)
Engine Block Heater: All Technical Service Bulletins
Engine Block Heater - Coolant Leak
Bulletin No.: 011/99
Issued: 06/04/99
Revised:
Section
09
Applicable Model/s
1998-99 626
Subject
COOLANT LEAK AT ACCESSORY BLOCK HEATER
APPLICABLE MODEL(S)/VINS
All 1998-99 4-cylinder 626 with FS 4-cylinder engine.
DESCRIPTION
Some accessory block heaters installed prior to March 1999 may cause a coolant leak. When installing a block heater kit as an accessory or when
replacing a leaking block heater element, be sure to use the modified element and the following repair procedure. This will ensure proper seating of the
0-ring seal on the block surface. Customers having this concern should have their vehicle repaired using the following procedure.
REPAIR PROCEDURE
1.
Verify customer concern.
If the leak is occurring from the block heater, proceed to STEP 2.
If the coolant leak is not caused by the block heater, repair the cause of the leak as necessary.
2.
Verify that the block heater element being installed either as an accessory or a service part is the modified part made of cast brass material and not
the old part which is of stamped construction as shown.
3.
Drain the coolant and thoroughly clean the sealing surface of the block.
4.
Remove the block heater element currently installed or the freeze plug as necessary and discard.
5.
Apply all of the silicone grease supplied with the block heater to thoroughly coat the 0-ring.
Caution
^
Use only the grease supplied with the block heater. Do not use a petroleum base grease as this may cause the 0-ring material to soften and cause a
leak.