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2006 6.0 had some fuel gelling got it home changed filters out dumped 911 in there and it was already treated. Now the problem is when I start it it's run great for about 3 min then starts missing, I unplug injectors one by one on pass side and it gets worse try it on drv side and u can't tell when I unplug them. To me this sounds like a fuel pump/ pressure problem. At first I thought it was a couple of bad injectors so I took them out tested coils and clean spools and still same thing. I don't have any codes per the dashboss.
Any ideas?
Get some Howes or Diesel Kleen white. STOP using the 911. It has alcohol which is NOT good for your injectors. You may still have a gelling problem. Have you removed the upper fuel filter cap and checked to see how fast it's filling? You could still have a fuel problem.
No sir, you will have a mess. Provided that you have a working fuel pump. That upper fuel bowl will just over flow as soon as you turn e key on, or at least it's supposed to.
I had a diesel fuel jell problem in my '06 a few years ago. I had the same symptoms that you described. The primary filter and secondary filter were filled with jelly. 911 and white bottle diesel treatment did not work.
Once the diesel fuel has jelled up, it needs to be heated up before the jelly dissolves. If you can move your truck into a warmed garage the problem will fix itself. I changed the two filters, scraped out the jelly, pumped out the diesel fuel in the tank (it was white colored) and used a propane fired heater under the truck to heat everything up.
After the fuel tank, engine, and all fuel tubing was warmed, I added 10 gallons of warm, treated diesel fuel to the tank. Started the truck and it ran great.
The downside is that one of my friends who owned a gasser Dodge witnessed much of this. He continued to do snowplowing work while I was freezing myself fixing the fuel jelly problem.......
When temperatures go much below zero F, we can't really trust the gas stations to have diesel fuel that works at low temperatures. Add the anti-jell before the temperature drops!
I had a diesel fuel jell problem in my '06 a few years ago. I had the same symptoms that you described. The primary filter and secondary filter were filled with jelly. 911 and white bottle diesel treatment did not work.
Once the diesel fuel has jelled up, it needs to be heated up before the jelly dissolves. If you can move your truck into a warmed garage the problem will fix itself. I changed the two filters, scraped out the jelly, pumped out the diesel fuel in the tank (it was white colored) and used a propane fired heater under the truck to heat everything up.
After the fuel tank, engine, and all fuel tubing was warmed, I added 10 gallons of warm, treated diesel fuel to the tank. Started the truck and it ran great.
The downside is that one of my friends who owned a gasser Dodge witnessed much of this. He continued to do snowplowing work while I was freezing myself fixing the fuel jelly problem.......
When temperatures go much below zero F, we can't really trust the gas stations to have diesel fuel that works at low temperatures. Add the anti-jell before the temperature drops!
Lou Braun
First off I appreciate your help, what sucks is I had treated this before with a double dose cuz they were calling for -15 temp and -45 windchill. Looks like I will go buy a heater and heat up the garage/ underside of truck
I can't find any gelled fuel. Called Ed at FICM repair figured out need a new alternator and had him test FICM, all good. Came home installed alternator and FICM and no change. Ed also sold me a blue spring upgrade, i put it in and truck is drivable but runs rough below 2000rpm. It cruises Down road great above 1500rpm.
Question, does this sound like a fuel pump issue, like maybe a volume problem that higher pressure is masking?
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