Replaced glow plugs and now it's gutless.. - Ford Powerstroke Diesel Forum
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Old 01-25-2014, 11:09 AM
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Replaced glow plugs and now it's gutless..

So here's what's going on- I installed new glow plugs, valve cover gaskets, and glow plug relay, all from Ford. None of the glow plugs tested good. It ran fine before I started work on it, just hard to start. I noticed the harnesses under the valve covers were stiff. I did not disturb or even mess with the fuel injectors or the wiring to them other than the connectors at the valve cover gaskets. It does not seem to misfire or stumble, but surely doesn't have the power it had before, it's gutless. It can't stay this way. I took my time and made sure the connectors were all seated (bottomed out). It just seems so unrelated because if there was an issue with one bank or the other of one or two pins from messing with the connectors it would have a stumble not an overall power loss. Step on it and nothing happens. It will build RPM, but does so slowly. I have good basic hand tools and multimeter but no diagnostic equipment (scan tool, fuel pressure gauge, ect.). Hate to go back in there again, do I need to replace the harnesses under the valve covers? It seems more like fuel pressure. I replaced the fuel filter maybe a month ago. Being as how it ran fine before I started the work and now not, sure would seem as though it was something I did, but the symptoms seem unrelated. Looking to try to stay out of paying shop rate, but I've had all the downtime I can spare. Thanks for any suggestions you might have! John
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Old 01-25-2014, 11:11 AM
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I'm not much help, but would you please update your profile with a location, so that maybe someone nearby with a scan tool can offer to help or the like? If you're close, I have a Solus Pro I can offer.
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Old 01-25-2014, 11:52 AM
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On the location, gladly, good suggestion. Thank you.



Just an update: I did a google search of my problem and found the answer to my symptoms exactly. I inadvertently left the 3"(?) aluminum pipe from the cooler to the turbo disconnected, connected it, test drove with a great sigh of relief!

Last edited by Adk.IBO; 01-25-2014 at 02:02 PM. Reason: Bad manners made better. Problem solved!
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