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1989 Chevrolet Blazer Silverado 5.7L Poor Idle Quality, Misfire, slight backfire
We replaced the engine on this vehicle after the old one locked up. The customer requested performance intake and roller rockers. This vehicle sputters and slightly backfires for the first 1-4 min. of idle in the morning but never again when warm. if the v...
FIX posted 4/8/2022
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16 Replies Received
16 Replies Received
Related Documents & Media | VIN | 1GNEV18K6K |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | Fuel Injection / TBI |
| Emissions | CA |
| Symptoms | Poor Idle Quality, Misfire, Slight Backfire |
| Occurs | Cold |
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Vehicle Data
1989 Chevrolet Blazer Silverado
| VIN | 1GNEV18K6K |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | Fuel Injection / TBI |
| Emissions | CA |
| Symptoms | Poor Idle Quality, Misfire, Slight Backfire |
| Occurs | Cold |
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