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P0440 No Leaks Found.
Hey guys. Have a 03 impala with a p0440. Sealed evap vent and purge and smoked the vehicle. No visible smoke. Gauge on machine shows less than .010 orfice leak. Scan tool shows fuel pressure sensor responsive and holding pressure. Pressure dissipates as soon a... Login to read more. 
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42 Replies Received
42 Replies Received
| Engine | 3.4 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
2003 Chevrolet Impala 3.4L
| Engine | 3.4 L |
| Trans | 4-speed Automatic (Electronic) |
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