Symptom/Condition

1. Excessive cold crank time (excess of 30 seconds) followed by a very rough idle or excessive cold crank time with a no start condition. This may be caused by no/low compression due to loose carbon holding valves open. Performing a clear flood procedure (WOT Start) will allow the vehicle to start. This condition typically follows a cold start with an engine run time of less than 60 seconds. An example of this would be pulling the vehicle from a garage to the driveway and turning the engine off. The subsequent start may experience the condition.

2. Possible no start conditions in very cold weather (below -18° C (0° F)).

3. Sags, stumble, or hesitation after a cold start in ambient temperatures of 4° to 32° C (40° to 90° F). This condition may persist for up to a minute into a drive cycle and is attributed to high driveability index (DI) fuel. See TSB 14-08-97 for more information on high DI fuel.