99 PSD Overheat - Ford Powerstroke Diesel Forum
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Old 12-16-2007, 09:31 AM
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99 PSD Overheat

Have a 99 PSD that is experiencing an overheat issue. Recently replaced Thermostat, Water Pump, Radiator, and fan clutch. Dealer stated that an injector issue might be causing the overheat. Not having any smoke issues. Possibly a periodic miss at idle. Discovered this morning fuel leaking at the drain valve on the fuel bowl. Going to replace O-rings to make sure that the small loss in fuel isn't robbing fuel pressure and cause injector mishap. Looking for any other thoughts. I fear a cooling jacket may be clogged.
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Old 12-18-2007, 03:03 AM
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Have you verified engine coolant temp? The reason I ask is a true over heating problem on the PSD is very rare, 98% of the time it is a faulty coolant sensor, or a bad gauge.
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Old 12-18-2007, 03:18 AM
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dont see it being a injector issue , like said before , very seldom does a 7.3 overheat , im sure you need to fix your fuel leak, but that doesnt cause any concerns either , definitly would check the gauge or sending unit
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