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1987 Pontiac Grand Am, Ignition - Primary Waveform
1987 Pontiac Grand Am 2.5L, with an intermittent hard or no start which was accompanied by backfiring in the intake and firing against rotation. It ran well otherwise. This image was used in a Technight discussion on 12-12-2000 for a case study.
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| Engine | 2.5 L / 4 cyl / GAS |
| Trans | 3-speed AutomaticTransaxle |
| Delivery | Fuel Injection |
| Subsystem | Ignition |
| Component | |
| Condition | Known Bad |
Vehicle Data
1987 Pontiac Grand Am LE 2.5L
| Engine | 2.5 L / 4 cyl / GAS |
| Trans | 3-speed AutomaticTransaxle |
| Delivery | Fuel Injection |
| Subsystem | Ignition |
| Component | |
| Condition | Known Bad |
Video