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2004 Chevrolet Astro 4.3L Poor Idle Quality, Misfire
Intermittant severe misfire only on cyl 3, will not happen when engine is cold, misfire gone above 900RPM as indicated by misfire counter. Spark plug, wire, cap and rotor all known good. KOEO fuel pressure within spec, spray pattern of injector 3 ok. Engine co...
Summary posted 11/21/2008
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12 Replies Received
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Related Documents & Media | VIN | 1GNDM19XX4 |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire |
| Occurs | Idle, Intermittently |
Trouble Codes
| P0303 | Cylinder 3 Misfire Detected |
Message Closed w/Summary
Vehicle Data
2004 Chevrolet Astro
| VIN | 1GNDM19XX4 |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire |
| Occurs | Idle, Intermittently |
Trouble Codes
| P0303 | Cylinder 3 Misfire Detected |
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