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1992 GMC Jimmy SLE 4.3L Excessive Emissions, Poor Idle Quality, Misfire
replaced intake manifold gasket, cleaned out air plenum in carb soak tank, I did remove all sensors before soaking. Soaked intake in cleaner also. CPI unit holds and doesnt leak. At idle the IAC will start high like normal then as it warms up the IAC goes to z...
FIX posted 10/16/2002
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Related Documents & Media | VIN | 1GKCT18W9N |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / 60lbs deadhead, 55lbs idle CPI |
| Emissions | Federal |
| Symptoms | Excessive Emissions, Poor Idle Quality, Misfire |
| Occurs | Always, Under Load |
| Misc. | Vortec Engine |
Message Closed w/FIX
Vehicle Data
1992 GMC Jimmy SLE
| VIN | 1GKCT18W9N |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / 60lbs deadhead, 55lbs idle CPI |
| Emissions | Federal |
| Symptoms | Excessive Emissions, Poor Idle Quality, Misfire |
| Occurs | Always, Under Load |
| Misc. | Vortec Engine |
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