Recent content by Joshua05lly

The actual and desired looked to be good with no spikes ( shark fins)

When I replaced the filter head I left the clear hose on and the air was 99% gone... no lift pump on my truck the injectors are from a reputable place and are Bosch (Lincoln diesel specialty)

Ok...so all 8 injectors have been replaced as well as fpr, filter housing, fuel filter, and wif sensor .....truck is not knocking but have developed a lope when at operating temp and only in park or neutral...if I put it in drive it idles smooth....I noticed that my main fuel rate is almost at 0...

Not 100% yet because I haven't replaced the part...but I may (hopefully!!) Have found the problem...I have a huge amount of air going into my ficm....just at idle....I imagine a lot more when revving....it kinda explains the knock and loping...

This is the data log where he lowered pressure and the knock went away

Makes sense! How exactly do I go about checking each injector return rate? cant find a "how to" on it

I know it's a long shot...but any way I can possibly call and talk....so much easier to explain over the phone!! Just dont understand y the rates look ok and shutting each cylinder down while revved in park and while driving under a load will not make a change but dropping overall pressure while...

The deal is...when driving or idling and shutting down each injector it doesn't stop the knock....only thing that made the motor quite was to drop total amount of fuel being delivered to all injectors I am at a loss and the only think I can really suspect is maybe the tune....previous owner had...

Well.....no changes after the fpr...still surging when warm and in drive....still knocking

And....the truck was knocking b4 I replaced the last 4 injectors.... so if the fpr is indeed going bad then it was going bad b4 the injectors...that's the reason I changed the damn things...

Ok...so just an update...I have now replaced 6 of the 8 injectors ( 2 about 6 months ago, and just did the other 4)...no change in the knock....(but they the knock noticeably went away when certain cylinder were shut down)......so after replacing the last 4 Injectors I start it up, went for a...

Video of my truck (the knock)

This is exactly what my truck sounds like....#8 and #5 were replaced like 6 months ago due to a no start issue....just replaced #7 because of this knock and had no change

I have had the truck on a tech 2....balance rates are similar to the ones shown....he said the return rates looked fine..I am trying to post a video of the knock on YouTube right now

Pin point what problem?