For 1990-2009 cars only
Intermittent Extended Crank, Hard Start, Engine Cranks But No Start When Engine is at Operating Temperature (Hot Soak) (Replace Powertrain Control Module (PCM))
| Subject: | Intermittent Extended Crank, Hard Start, Engine Cranks But No Start When Engine Is At Operating Temperature (Hot Soak) (Replace Powertrain Control Module (PCM)) |
| Models: | 2005-2007 Pontiac Vibe |
| with 1.8L 4-Cylinder Gas Engine with MFI (VIN 8 - RPO LV6) |
This bulletin is being revised to add model years and updated PCM part numbers. Please discard Corporate Bulletin Number 05-06-04-074 (Section 06 -- Engine/Propulsion System ).
Condition
Some customers may comment on the following conditions:
| • | Intermittent extended crank or hard start when the engine is still at operating temperature (hot soak). Engine cranks for approximately 3 seconds, starts, may miss after starting, then clears and operates normally for the duration of the drive cycle. |
| • | The engine cranks but will not start. Diagnosis may show no injector pulse or spark during cranking. Also, the scan tool may fail to initialize with the PCM. |
Cause
These conditions may be caused by the following:
| • | The PCM calibration may not be maximized for hot restart. |
| • | The PCM may have experienced an internal fault. |
Correction
- Perform the appropriate diagnosis:
- If the above diagnosis leads to a PCM fault, replace the PCM with the appropriate part number listed below. Refer to Powertrain Control Module (PCM) Replacement in SI.
| • | Refer to Hard Start in SI. |
| • | Refer to Engine Cranks but Does Not Run diagnostic in SI. |
Parts Information
Part Number | Description |
|---|---|
88974761 | PCM - with JL4 (ABS) and MU4 (AUTO TRANS) |
88974762 | PCM - with MU4 (AUTO TRANS) |
88974763 | PCM - with MK5 (MAN TRANS) |
Part Number | Description |
|---|---|
88974695 | PCM - with JL4 (ABS) and MU4 (AUTO TRANS) |
88974696 | PCM - with MU4 (AUTO TRANS) |
88974697 | PCM - with MK5 (MAN TRANS) |
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
J6360 | Module, PCM/VCM - Replace | Use Published Labor Operation Time |
