For 1990-2009 cars only
Coolant Leak Coming from Engine Compartment (Apply Sealer to Expansion Plug)
| Subject: | Coolant Leak Coming from Engine Compartment (Apply Sealer to Expansion Plug) |
| Models: | 2007-2008 Buick Lucerne |
| with 3.8L Engine (VIN 2 -- RPO L26) |
Condition
Some customers may comment on a coolant leak coming from the engine compartment.
Upon inspection, technicians may find that the leak is very small and coming from the expansion plug on the front side of the engine block near cylinders 1 and 3.
Correction
Drain the coolant and remove the expansion plug. Check the hole in the block for any defects and then apply sealer (e.g. RTV) around the perimeter of a new expansion plug and install. Refill the cooling system and pressure test for leaks.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
J1600 | Plug, Expansion -- Replace | Use Published Labor Operation Time |
