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1991 GMC K2500 Sierra 5.7L Engine
The vehicle when left sit for period of time, like 5 hours
or more, will run rough for about 60 seconds. No codes,
lights or buzzers for this one. Have checked Mitchell,
scanned, and scoped to find nothing.
Summary posted 12/16/2000
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Message Closed w/Summary
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Related Documents & Media 
| VIN | 2GTFK29K7M |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI |
| Affected | Engine |
| Conditions | Runs Rough Cold for Approx 60 Seconds |
| Misc. | Fresh Rebuild Edelbrock Performer Cam |
Message Closed w/Summary
Vehicle Data
1991 GMC K2500 Sierra
| VIN | 2GTFK29K7M |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI |
| Affected | Engine |
| Conditions | Runs Rough Cold for Approx 60 Seconds |
| Misc. | Fresh Rebuild Edelbrock Performer Cam |
Video