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1991 GMC S15 Jimmy SLE 4.3L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on
The problem starts out as a miss with the mil coming on. After awhile the computer goes into open loop. The problem then goes away for several days. It also seems to show up only in winter conditions. Sometimes it will set a code 13 when the mil comes other ti...
FIX posted 3/8/1998
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| VIN | 1GKDT13Z6M |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Symptoms | Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp On |
| Occurs | Intermittently |
Message Closed w/FIX
Vehicle Data
1991 GMC S15 Jimmy SLE
| VIN | 1GKDT13Z6M |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Symptoms | Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp On |
| Occurs | Intermittently |
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