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2002 Oldsmobile Silhouette GLS 3.4L Poor Fuel Economy
This van belongs to my father-in-law, so I have to fix it. Previously, gas mileage was 20city and [...]. Lately has dropped to 14city and 19 highway. Brakes are not dragging. I checked the exhaust backpressure (4psi). I thought that was marginal, so I replaced...
Summary posted 8/30/2010
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Related Documents & Media | VIN | 1GHDX03EX2 |
| Engine | 3.4 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Fuel Economy |
| Occurs | Always |
Message Closed w/Summary
Vehicle Data
2002 Oldsmobile Silhouette GLS
| VIN | 1GHDX03EX2 |
| Engine | 3.4 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Fuel Economy |
| Occurs | Always |
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