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Misfire, No Start, then Hard start and Multiple Codes present
Check high pressure, low. Pull valve covers, replaced #6 injector o ring. start engine and check high pressure oil pump, still low - replaced pump and IPR. Somewhat better on start up - extra crank time. Codes present: P1212 (ICP pressure), P1280 (ICP out rang... Login to read more. 
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| Engine | 7.3 L |
| Trans | 5-speed Standard |
| Symptoms | Misfire |
Vehicle Data
1999 Ford F-450 Super Duty XL 7.3L Misfire
| Engine | 7.3 L |
| Trans | 5-speed Standard |
| Symptoms | Misfire |
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