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2004 Chevrolet Astro LT, Ignition Waveform
Channel 1: Cranking Voltage (Low Peak means TDC) Channel 2: CKP Signal Channel 3: Ignition Primary Voltage Channel 4: Igniter Signal (Input from ECM) Condition: Intermittent Spark (Bad Ignition Coil)
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| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | Ignition |
| Component | |
| Condition | Known Bad |
Vehicle Data
2004 Chevrolet Astro LT 4.3L
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | Ignition |
| Component | |
| Condition | Known Bad |
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