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1990 GMC C1500 Sierra, Engine/Propulsion Waveform
CH B idle cyl 1 running compression, CH D coil wire secondary with a ST125 spark tester in cyl 1 plug wire and cyl 1 is firing 28 deg BTDC
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| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 3-speed AutomaticTransmission |
| Delivery | Fuel Injection |
| Subsystem | Engine/Propulsion |
| Component | , |
| Condition | Known Good |
References
Vehicle Data
1990 GMC C1500 Sierra 5.0L
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 3-speed AutomaticTransmission |
| Delivery | Fuel Injection |
| Subsystem | Engine/Propulsion |
| Component | , |
| Condition | Known Good |
Video