99 7.3L hard start, no power - Ford Powerstroke Diesel Forum
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Old 03-25-2010, 07:21 PM
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99 7.3L hard start, no power

Hey,
I finally solved my dead battery issue but I still have an underlying issue. My 99 7.3L with 267,000 doesn't start unless it's been sprayed with starting fluid. It doesn't matter if it's in the 40's or -40. If it's been run for hours or a cold start. As soon as I shut it off it doesnt want to start. I can crank intermittently for 5-10 minutes then sometimes it starts. When it is running it sometimes has an erratic idle, but always has very poor throttle response and it is so gutless I can't even burn the tires on SAND! I've replaced the cam sensor with a Ford part, new fuel filters, fuses, relays, new air filter, oil filter, oil, a bottle of diesel 911. When its cold it has a minor blue smoke cloud, when it warms up there's almost none. There is also oil residue in the intake piping. I have no idea what to do and I don't want to throw money at parts that aren't the problem. The closest dealer/shop is 35 miles away.
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Old 03-29-2010, 09:08 PM
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I've had hard start issues too. I"d check glow plugs first. Unplug your UVC connectors and probe them out with a multimeter. I believe outer pins (2 front, 2 rear) connect to the glow plugs. should be like 2 to 6 ohms. Have you had codes pulled? If there are some ICP codes, might try pulling the ICP sensor connector and see if that helps. else it may be HPOP.
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Old 03-30-2010, 03:42 PM
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I've got the valve covers off right now. There is and intermittent code light however my port will not read. I haven't tested the ICP yet. The HPOP says remanufactured on it so it appears to be newer. I have the UVC unplugged I will test them tonight.
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