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1998 GMC K2500 Sierra SL 5.7L Misfire, Poor Fuel Economy
This vehicle came in with a misfire on #5 cylinder. #7 also misses at idle but smoothes out at about 2000 RPM. I have checked the compression on those 2 cylinders & swapped the plugs around. I replaced the injectors for those two and checked the fuel pr...
FIX posted 12/15/1999
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| VIN | 1GTGK24R0W |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / CFI |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire, Poor Fuel Economy |
| Occurs | Always |
| Misc. | 4WD |
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Vehicle Data
1998 GMC K2500 Sierra SL
| VIN | 1GTGK24R0W |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / CFI |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire, Poor Fuel Economy |
| Occurs | Always |
| Misc. | 4WD |
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