balance rates - Did I do it right and how do they look?
- Thread starter lotsofmiles
- Start date
got a noise, under load, with any tune.
not consistant tho. Sometimes when pulling a trailer up hill the noise comes in, sometimes on bigger hills, no noise. Sometimes with no trailer its there sometimes its not.
sounds similiar to timing rattle, but it happens with stock tune, with my dd efi tune and with banks at any level.
Also sounds similiar to too much h20/meth too soon, but it happens with the meth on and off.
when I logged it it looked like rail pressure was good too
not consistant tho. Sometimes when pulling a trailer up hill the noise comes in, sometimes on bigger hills, no noise. Sometimes with no trailer its there sometimes its not.
sounds similiar to timing rattle, but it happens with stock tune, with my dd efi tune and with banks at any level.
Also sounds similiar to too much h20/meth too soon, but it happens with the meth on and off.
when I logged it it looked like rail pressure was good too
I did get a log of it when it was making the noise if it helps any.
I was driving some 2 lane roads thru some hills in PA. Just the truck, no trailer.
Near the end of the log I was going down hill in tow/haul mode. It was steep and the rpms shot up to 3,xxx. This is just the reference point. After the rpms shot up to 3,000, the road leveled out, rpms back down, then I started climbing another hill. At that point the noise started, on the up hill climb.
that is the only spot in the log where the noise was made.
edit after frame 1100 or 1200
I was driving some 2 lane roads thru some hills in PA. Just the truck, no trailer.
Near the end of the log I was going down hill in tow/haul mode. It was steep and the rpms shot up to 3,xxx. This is just the reference point. After the rpms shot up to 3,000, the road leveled out, rpms back down, then I started climbing another hill. At that point the noise started, on the up hill climb.
that is the only spot in the log where the noise was made.
edit after frame 1100 or 1200
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only time I run the 6gun on any level other than stock is if I have a stock tune on the ecm.
if I have an efi tune on the 6 gun is on stock
Not stacking them.
edit:
Drove 700 miles yesterday, barley heard the noise once. Wed/Thurs heard it a few times. Bad fuel? Winter Fuel? I think I need some of those 75 hp injectors to take care of it
if I have an efi tune on the 6 gun is on stock
Not stacking them.
edit:
Drove 700 miles yesterday, barley heard the noise once. Wed/Thurs heard it a few times. Bad fuel? Winter Fuel? I think I need some of those 75 hp injectors to take care of it
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My Dad's 05 lly does the same thing. He has like twice the injector rattle as mine has or had. With identicle tuning they were conpletely different. His also gets pretty loud sometimes. I did all the same tests and logged it a bunch of times. Everything looks ok. He had 90xxx miles on it that way with no problems. Nobody I have talked to seems to have a good answer. Not saying its ok but form my experience it hasn't affected anything yet.
I think the guys at Huckstorf figured this one out for me while I was in there.
It was doing the noise that morning, and I mentioned it to them.
IAT adjusts timing. Its been doing it since cold weather started.
We pulled the truck inside for the dyno, and it didnt make the noise.
Was making the noise a few times today. Seems to do it under 28 degrees and above 30% or so throttle.
I guess I need to move somewhere warmer
It was doing the noise that morning, and I mentioned it to them.
IAT adjusts timing. Its been doing it since cold weather started.
We pulled the truck inside for the dyno, and it didnt make the noise.
Was making the noise a few times today. Seems to do it under 28 degrees and above 30% or so throttle.
I guess I need to move somewhere warmer
Any chance pilot could be the cause? Seems pilot is on and off in the 1100 and 1200 referenced area? Seems funny how pilot is on with vane so far open, very low air but also very low total fuel quantity. 1169 to 1182 just a thought.
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GMC_2002_Dmax
The Still Master
got a noise, under load, with any tune.
not consistant tho. Sometimes when pulling a trailer up hill the noise comes in, sometimes on bigger hills, no noise. Sometimes with no trailer its there sometimes its not.
sounds similiar to timing rattle, but it happens with stock tune, with my dd efi tune and with banks at any level.
Also sounds similiar to too much h20/meth too soon, but it happens with the meth on and off.
when I logged it it looked like rail pressure was good too
Log the fuel temp sensor, IAT and the ECT sensor.
You may have a bad sensor and it will use an add-on table with a multiplier.
Seen it happen before.
:dontknow:
Log the fuel temp sensor, IAT and the ECT sensor.
You may have a bad sensor and it will use an add-on table with a multiplier.
Seen it happen before.
I'll try that next time the truck is out.
thanks both of you
Even when turned to stock banks still makes changes. I know for sure it adds boost timing is a maybe. It's easy enough to unhook i say unhook it and then see if it still happens