EngineModel years 1999–2013Manufacturer
P0300 after engine repairs: injector connectors crossed (cylinders 5-7 / 6-8)
1999-2013 GMC Savana, Sierra, Yukon with a V8 engine (among many listed models)
FaultCrate・P0300 after engine repairs: injector connectors crossed (cylinders 5-7 / 6-8)
The engine misfire may not be detected or may happen during deceleration.
DTC P0300 sets after engine repairs.
Injector connectors for cylinders 5-7 and 6-8 can be crossed and cause an engine misfire.
How to tell
What to do
- If crossed injector connectors are a possible cause, use the applicable SI document to validate the injector connector routing.
- Correct the injector connector routing and re-evaluate.
Applies to
- The bulletin covers 1999-2013 GMC Savana, Sierra and Yukon.
See the evidence (2 documents, 6 passages)
| Document | Publisher | Date |
|---|---|---|
| [1]PIP5169: DTC P0300 Setting After Engine Repairs ↗ | ManufacturerGeneral Motors (published by NHTSA) | 2014-01-07 |
| [2]PIP5169 DTC P0300 Setting After Engine Repairs ↗ | ManufacturerGeneral Motors | — |
Applies toThe bulletin covers 1999-2013 GMC Savana, Sierra and Yukon.
1999-2013 GMC Savana, Sierra, Yukon— [1] Models
Why it happensInjector connectors for cylinders 5-7 and 6-8 can be crossed and cause an engine misfire.
It is possible to have injector connectors crossed for cylinder 5-7 and 6-8 to cause an engine misfire.— [1] Condition
First signsThe engine misfire may not be detected or may happen during deceleration.
The engine misfire may not be detected and may happen during deceleration.— [1] Condition
RepairCorrect the injector connector routing and re-evaluate.
Correct the injector connector routing and evaluate for the concern.— [1] Recommendation
First signsDTC P0300 sets after engine repairs.
DTC P0300 Setting After engine Repairs.— [2]
How to confirmIf crossed injector connectors are a possible cause, use the applicable SI document to validate the injector connector routing.
If you have determined crossed injector connectors maybe a possible case, use the applicable SI document to validate the injector connector routing.— [2]
Put together by FaultCrate from public records and technical documents. The cause and the repair are for the workshop to decide with the vehicle in front of it. Counts are records, not failure rates.
List the records (1 that can be opened)
Records whose recall number, document number or text matches. Each line says why it matched.
- P0300 DTC After Engine Repairs – Injector Connector VerificationManufacturer communication 2017-08-15・document number matches