| Subject: | Information On Vehicles with LSJ Engine Repeatedly Started Cold -- Inventory Maintenance |
| Models: | 2005-2006 Chevrolet Cobalt |
| with 2.0L Ecotec 4 Cylinder Engine (VIN P --RPO LSJ) |
| Attention: | This Bulletin ONLY applies to vehicles in which the LSJ engine has been repeatedly started cold. All others should disregard this bulletin and proceed with diagnostics found in published Service Information. |
Dealerships may encounter a concern with fouled spark plug(s) on the 2.0L engine (RPO LSJ). This type of concern may be present when the vehicle is repeatedly started cold. The engine should be brought to normal operating temperature each time it is started
before shutting down. This type of fueling calibration is done to prevent cold driveability issues.
In the future, dealerships should allow vehicles to reach operating temperature before moving them around their lot.
