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I disagree. I know that's Ford's official stance, but I just don't like the thought of engineering in an unbalanced fuel delivery to try and offset a poor design.
International never has trouble with thier T444E's, and they also saw fit to install an accumulator on the back of the left head.
I wonder why?
#8 injector has the abreviation LL on the solenoid to identify it.
What is this accumulator that you are talking about? Left side head has a crankcase breather tube running down the back side of it and an automatic trans dipstick tube in the big trucks.
Installing the LL injector does get rid of the noise. Whether it is the best way I don't know, I'm not an engineer.
I don't see how the different fuel line plumbing would eliminate the noise (in a ford) as the navistar trucks are similar to your design (in that they don't have the quick couplers to suck air) and still have the injector noise.
TexasTownCar is the pioneer in this air in fuel problem. I simply read about thier experiences and benefitted from what they wrote.
Tip: If you go to that page that I listed from thier site, scroll down to the bottom of the page and click on "main page" you'll get to read all the pages that he wrote. VERY good information in dealing with this problem.
I went to tds and listened, I dont have that noise thank goodness, and mines a 01 psd. What shocked me was the cold start of a 7.3, sounds good, mine sounds nasty when it starts compared to that......yikes. What controls the gpr when you turn the key on? What controls how long the relay stays on when its cold. I just replaced my relay and still only stays on for about 10 seconds at 30 degrees.
I went to tds and listened, I dont have that noise thank goodness, and mines a 01 psd. What shocked me was the cold start of a 7.3, sounds good, mine sounds nasty when it starts compared to that......yikes. What controls the gpr when you turn the key on? What controls how long the relay stays on when its cold. I just replaced my relay and still only stays on for about 10 seconds at 30 degrees.
...........I just replaced my relay and still only stays on for about 10 seconds at 30 degrees.
Are you going by the dash light or actually seeing voltage drop on the GPR? As PSNut stated, the GPR and dash light are both controlled by the PCM but the GPR will usually stay energised much longer than the light, close to 2 minutes when it's cold.
I used a test light on the gpr, didnt stay on long, and light was dim, so replaced the gpr, and basically have the same results. All my glow plugs test fine, so im stumped.
Cookie, does your Dual feed fuel system with regulated return-70 psi fuel pressure keep the idle knock away? If so, where'd you get it?
It's an ITP system. It did get rid of my idle knock most of the time....still hear it occasionally when it's really cold. I also have a couple of injectors that are getting clacky all the time now, but I hope to remedy that soon.
Also...the injectors are a little louder at the higher pressures, but they seem to run better cranked up.
This is something that I am very interested in and have been reading up on. I am glad that kwik reposted the texas towncar link. As shown by their diagram, why cant one simply connect the two heads at the unused ports to eliminate fuel starvation to the end injectors?
Any idea if this would change the fuel pressure? It seems silly question but I once blocked off a port of a 2 port reg on my stang and my pressure doubled. I still dont understand why, but what do I know.
forgot to mention the blue line is the one I drew in. The green is from Texas Towncar as is the rest of the pic.
Last edited by hllon4whls; Jan 5, 2006 at 11:08 PM.
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