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Old 03-03-2009, 04:05 AM
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Severe Surging

I don't know what the problem is as of right now. How ever I am really hoping my investment with auto enginuity will pay off later today. As I had severe surging, check engine light came on, and I think I lost a couple cylinders. I believe it is related to injectors. Or it is a fuel supply problem. I will keep you all posted with what I find out later today. I did make it to work though.

With my chip in the stock setting, I was getting 15psi of boost and my egt's were up around 1200 all the time. It was dark so I could not see if there was a severe cloud of black smoke or not. But I am thinking I may have a couple injectors that were just dumping fuel into the cylinders.
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Old 03-03-2009, 07:17 AM
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good luck! hope its not too bad
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Old 03-03-2009, 07:20 AM
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first thoughts are UVC or fuel, have you fueled up lately?
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Old 03-03-2009, 08:07 AM
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i know on my 7.3L i was having issues with one dead cyl every now and then thru the day. i thougth it was a inj going bad. talked to local diesel mech and he laughed and said it was the wire plug in the valvecover. so i just told him to fix it. he had a harnisse made to check and he was right. the inside female plug clips broke and let the plug move just a bit. this allowed the wire to spark some and work but other times. with new plug it runs great.

just so you know what it might be.....
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Old 03-03-2009, 08:09 AM
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I think ford makes a little wedge for this?

Edit : here you go Under Valve Cover Harness

Last edited by tubular031; 03-03-2009 at 08:14 AM.
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Old 03-03-2009, 08:09 AM
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Quote:
Originally Posted by Hawkerhino View Post
i know on my 7.3L i was having issues with one dead cyl every now and then thru the day. i thougth it was a inj going bad. talked to local diesel mech and he laughed and said it was the wire plug in the valvecover. so i just told him to fix it. he had a harnisse made to check and he was right. the inside female plug clips broke and let the plug move just a bit. this allowed the wire to spark some and work but other times. with new plug it runs great.

just so you know what it might be.....
Yeah, that happens all to often, Happened to my truck once, and just fixed a friends truck. run a buzz test with your autoenguity.
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Old 03-03-2009, 08:34 AM
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Quote:
Originally Posted by cchase View Post
Yeah, that happens all to often, Happened to my truck once, and just fixed a friends truck. run a buzz test with your autoenguity.
Yepper gonna do that as well as the cylinder contribution and scan for codes.
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Old 03-03-2009, 08:41 AM
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My truck was surging at 1500-1800 rpm and i had 3 injectors bad on my 05 6.0. It didnt have any codes stored when i checked with my programmer. The dealership couldnt get it to show up on the computer with the truck warm either. I let it set at the dealership all night and had them do a cold start with the computer hooked up to get the problem to reoccur. 3 Injectors cost me 1500! Replaced
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Old 03-03-2009, 01:06 PM
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Ok buzz test states, cylinder #1, 3, 5,7 failed. The whole passenger side bank is not firing. After talking to Scuffy, he advised me to pull the valve cover and check the uvc. So that is where I am at right now. How ever I need to get my truck to my house which is 12 miles away. So I am working on the logstics of that right now.


Stay tuned for more updates.
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Old 03-03-2009, 01:15 PM
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Originally Posted by bigcountrysg View Post
Ok buzz test states, cylinder #1, 3, 5,7 failed. The whole passenger side bank is not firing. After talking to Scuffy, he advised me to pull the valve cover and check the uvc. So that is where I am at right now. How ever I need to get my truck to my house which is 12 miles away. So I am working on the logstics of that right now.


Stay tuned for more updates.
oh yeah, thats a harness issue. i think that side is the easiest to get off too.
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