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1989 Chevrolet K3500 Cheyenne 7.4L Poor Idle Quality, Surge
I am quite sure I have a bad torque converter as described in other emails. I am curious about the fact that the computer says it has a knock signal after the engine is started, but I have not been able to locate a knock sensor. Do I need a new ecm or is t...
FIX posted 11/2/1999
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| VIN | 1GCGK34N5K |
| Engine | 7.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | FED |
| Symptoms | Poor Idle Quality, Surge |
| Occurs | Always, Idle |
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Vehicle Data
1989 Chevrolet K3500 Cheyenne
| VIN | 1GCGK34N5K |
| Engine | 7.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | FED |
| Symptoms | Poor Idle Quality, Surge |
| Occurs | Always, Idle |
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