Cracked Piston or Dead injector?
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Junior User
Joined: Nov 2015
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From: Lower Mainland
Cracked Piston or Dead injector?
This is gonna be a handful,but here I go anyways. On my 96, I recently did the UVCHs, gaskets, and pigtails. I hooked up a wire wrong and the number 7 injector wasn't firing. Went back and changed it, and nothing happened. Is it possible that I killed an injector, as it was injecting on the exhaust stroke or intake? Totaly the wrong time for fuel to enter the system... it's got 307030 kms, I believe that's near 190xxx miles. Anywho, is it past it's time of death? If they it is dead and I can't find a cheap replacement, I'll save up for stage 3s, an s468 and supporting mods. If not, what can I do to "revive" the injector? It vibrates between 1000rpm and 1700 rpm ONLY UNDER LOAD like in 4th and 5th gears. Idles rough too. Also, I ran er low on oil like 2 days before I did the gaskets, is it possible that starving it from oil can kill it or maybe it's just clogged?
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Junior User
Joined: Nov 2015
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From: Lower Mainland
Well I've put about 1000kms on it so I don't think it's gonna fix itself. I suppose next time I'm under the hood of my 7.3 I could run it without the valve cover. Now I'm working on my fix.0 lol. Cracked egr cooler.
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mine idles rough at 1000. Smooth as can be at 1100
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Junior User
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From: Lower Mainland
My brother has the same truck in ext cab zf5, and my dad in cc auto. Both are smooth from off idle to redline. All trucks are stock, besides downpipe.
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Junior User
Joined: Nov 2015
Posts: 68
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From: Lower Mainland
Well gents, I figured it out. I was looking in the wrong spot. The factory harness was rubbing thu on the driver side front injector harness. taped er up and now she's runnin on all 8.
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Visseroth
1999 - 2003 7.3L Power Stroke Diesel
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Jul 27, 2011 12:54 AM