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1992 Ford F-150 Custom 5.0L Poor Idle Quality, Poor Fuel Economy
Vehicle runs rough cold with low 13-15 inches of vacuum when cold, loading up. As engine warms, vacuum increases and runs normal, but still has rich exhaust. Initial complaint was no fast idle. I resealed upper plenum to fix a vacuum leak, but to no avail. Eli...
FIX posted 1/5/2001
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| VIN | 1FTEX14NXN |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / efi |
| Emissions | us fed emissions |
| Symptoms | Poor Idle Quality, Poor Fuel Economy |
| Occurs | Always, Cold, Hot, Cruise, Idle |
Trouble Codes
| 173 | Fuel system rich |
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Vehicle Data
1992 Ford F-150 Custom
| VIN | 1FTEX14NXN |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / efi |
| Emissions | us fed emissions |
| Symptoms | Poor Idle Quality, Poor Fuel Economy |
| Occurs | Always, Cold, Hot, Cruise, Idle |
Trouble Codes
| 173 | Fuel system rich |
Video