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1993 Jeep Grand Cherokee Laredo 4.0L Poor Fuel Economy
Customer complains of reduced fuel economy(20mpg or so down to 16mpg after we replaced plugs, now down to 10mpg after we adjusted spark plug gap) since tune-up. Minor rough idle was also a problem, solved with adjustment of plug gap to .045" from spec. of .035...
FIX posted 5/14/2001
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| VIN | [No VIN Available] |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD II |
| Symptoms | Poor Fuel Economy |
| Occurs | Always |
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Vehicle Data
1993 Jeep Grand Cherokee Laredo
| VIN | [No VIN Available] |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD II |
| Symptoms | Poor Fuel Economy |
| Occurs | Always |
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