Compression Ignition Addict
Join Date: Feb 2012
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Troubleshooting possible injector problem
Well i know there is something going on with my truck and trying to figure out what it is. When i took my trip to Dallas for Christmas i noticed a new noise when we got there...well i landed up replacing the water pump. It was in need of being replaced but was not the complete fix. When i driving back the last 3 hours I starting hearing more metallic racket. do not know where it is coming from so i I slowed down to 65 and it quieted it down. Well I assume it is the carrier bearing so once the weather breaks here I am replacing the three ujoints and carrier bearing. Well I believe that will take care of the noise I heard at speed but not addressing the rest of the metallic sounds.
So to me it sounds like an engine knock like on a gasser but I can only hear it from inside. When I am outside it sounds fine. I pulled out the snap on tester and ran the buzz test today and the contribution test. buzz seemed just find and I got the #8 P0284 code on the test. I did run it a couple of times. Same result. Well when I bought the truck I did the same thing and did not ever have a failure there. There have been a slue of things I have done to the truck since I ran it last. Here is a list of the changes related to engine.
I install DIY Regulated return system
DIY Air filter
replace the upper and lower boots on the intercooler spider
both gas tank mods
4" turbo back
So when i start the truck i can here an extra "grinding" sound on crank and I can hear it at idle when just sitting there.
In town I am getting around 13mpg
when I was driving back from Dallas I got 11mpg but i was pulling a 7x14 single axle empty enclosed trailer and never saw over 1000 degrees of EGT.
on start up I crank for about 1 second then it starts.
During the summer I can across a deal locally for a set of 8 AD injectors and UC harnesses...Yes they are remans. They guy ordered them directly from international so I have 8 international reman injectors with orings. So i can just replace the one or how ever many I want to since I have the parts.
So what you all think and what questions ya have so I can help you help me to figure this out. Any help would be greatly appreciated.
EGR delete--4" turbo back exhaust
Last edited by hotairgypsy; 01-14-2013 at 10:02 PM.