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Old 10-12-2013, 05:42 PM
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2001 7.3

Hi I'm new too this but here it goes I have a 2001 powerstroke it has 140k
It had a hard time starting for a while so I replace the glow plug relay. After
That it worked great for a while the last few weeks its back too starting hard
And now once it fires up idles rough white smoke once warmed up runs great
If not warm runs horrible I was thinking glow plugs but other mechanics are saying maybe injectors... Anyone else had this issue ...
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Old 10-12-2013, 07:10 PM
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Quote:
Originally Posted by kwilson5150 View Post
Hi I'm new too this but here it goes I have a 2001 powerstroke it has 140k
It had a hard time starting for a while so I replace the glow plug relay. After
That it worked great for a while the last few weeks its back too starting hard
And now once it fires up idles rough white smoke once warmed up runs great
If not warm runs horrible I was thinking glow plugs but other mechanics are saying maybe injectors... Anyone else had this issue ...
If it runs fine after warm up then GP's are probably the culprit.

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Old 10-15-2013, 03:34 PM
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Yeah after it warms up but if I try driving before there's no power and it vibrates the whole truck like its either getting no air or fuel as well I'm replacing the glow plugs this week just wondering if anything else could cause it also
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Old 10-15-2013, 07:05 PM
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Originally Posted by kwilson5150 View Post
Yeah after it warms up but if I try driving before there's no power and it vibrates the whole truck like its either getting no air or fuel as well I'm replacing the glow plugs this week just wondering if anything else could cause it also
Make sure you use Motorcraft plugs as some aftermarket plugs tend to swell causing them to be difficult to remove.
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Old 10-15-2013, 07:11 PM
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You can easily test the GPs if the harness is good BTW. If you have a volt meter you can check the ohms of each GP at the harness plug in each valve cover.
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Old 10-16-2013, 12:42 AM
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FYI the stock glow plug relay fries itself pretty quick. stancor is a good upgraded relay

i second motorcraft plugs only, the last thing you want is to break a tip off of a glowplug and have it fall in the head.

synthetic oil on your next change is a good upgrade as well.
5w-40 definately helps the truck start easier.
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