idles fine no power ? - Ford Powerstroke Diesel Forum
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Old 02-01-2010, 08:34 AM
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idles fine no power ?

2000 7.3 / 131k / won't get over 35 mph, seems to idle and start fine. Seems like the turbo is inop maybe, no dash light warning. Anybody have an idea where to start looking? Any common known failure? New here. Thanks for any input.

Charlie
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Old 02-01-2010, 08:37 AM
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any smoke?
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Old 02-01-2010, 08:52 AM
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maybe the EBPV valve sticking closed?
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Old 02-01-2010, 08:55 AM
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if there is white smoke or any oil out the exhaust then it is probably the turbo that failed
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Old 02-01-2010, 09:27 AM
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EBPV valve? no smoke, just no power when you load it. If you throttle up sitting still it sounds ok to a point and you can tell it starts to stumble at higher rpm. What's EBPV? Electronic Back Pressure Control I'm guessing? I was looking at a vacumn switch and diaphram that operate the waste gate possibly wondering if the diaphram failed in the cold weather. guess I could manualy aplly vacumn and see if it functions,.... any thoughts?
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Old 02-01-2010, 01:38 PM
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EBPV is not vac operated. I believe its oil powered. there is a plug on the bottom of the turbo pedistal that controls this.

My guess is low fuel pressure. order an adapter from dieselorings.com and get a gauge on there. you should see 50+ psi at the back of the fuel bowl. If you dont have that, either the pump is weak, the filter is plugged or something else is going wrong.
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