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1990 Ford F-150 Custom 4.9L Poor Idle Quality
Vehicle has runabilty problem. Ignition components all check okay. Checked fuel pump pressure: results 55 -65 psi, which seems too high !? Checked fuel filter, and lines:okay. Replaced fuel pressure regulator and there was no change ? Removed return line at ta...
FIX posted 12/4/2002
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Related Documents & Media | VIN | 1FTEX14Y0L |
| Engine | 4.9 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / PORT INJECTED |
| Symptoms | Poor Idle Quality |
| Occurs | Always, Idle |
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Vehicle Data
1990 Ford F-150 Custom
| VIN | 1FTEX14Y0L |
| Engine | 4.9 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / PORT INJECTED |
| Symptoms | Poor Idle Quality |
| Occurs | Always, Idle |
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