George B
¯\_(ツ)_/¯
Thats what I read and it’s not a problem. I just loaded the ecm and tcm files tonight. Just wonder if I want to change to the high oct ecm file if I need to write the same tcm file again.
What did you do to your NNBS GMT900 Tahoe/Yukon Today?
- Thread starter phattyford
- Start date
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no, there separate modules no need to re-write the tcm again.
gooffeyguy
Tom
I was getting onto the highway and got on it a bit and was hearing what I think was spark knock. Sounded like marbles in a can. I had the Torque app running on my phone and it didn't show any knock retard or knock counts though.
Last refuel I put in Mobil 93 octane and is currently reading 14% ethanol.
Would an exhaust leak have a similar sound and could it only be heard at WOT?
I am using the pre-defined Knock Retard and Knock Count PIDs in the Torque app, but I've never gotten any reading on those. Does anyone know the PIDs that work?
Last refuel I put in Mobil 93 octane and is currently reading 14% ethanol.
Would an exhaust leak have a similar sound and could it only be heard at WOT?
I am using the pre-defined Knock Retard and Knock Count PIDs in the Torque app, but I've never gotten any reading on those. Does anyone know the PIDs that work?
AC PUMP, if it happens again take the ac belt off and try again. If the noise is gone then you know.
you might be able to make it do it if you have the throttle limiter turned off in park and just rev it up
Kee Fuller
Full Access Member
If you remove the seat occupant pressure sensor from the pax seat, will it cause the check airbag light to come on? Got my new covers installed today and they had to remove it to put in the fan for the cooling system
yep
Kee Fuller
Full Access Member
Gotta figure out how to get it back in there and still be able to use my new cooled seats
what did you change exactly, the whole seat? cushion?
Kee Fuller
Full Access Member
New seat covers from leatherseats. Com, added the heated and cooling feature. So I’m assuming they had to remove the bladder and bracket to put the distribution pad in. I guess the bladder restricts the air flow.
the instructions didn't say anything about the sensor?, I watched there video for the 2017 silverado and he doesn't say a peep about the airbag sensor
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gooffeyguy
Tom
If it is the AC pump, would that mean it's going bad? Bad bearings? Internals? I guess just having the HVAC switched off wouldn't work for the test?
I haven't heard this noise before
Sparksalot
Elite Member
+1
Asking for a friend.
yes if it sounds like a bunch of metal getting eaten by a angry garbage disposal then yes it is going bad (or is bad rather) and should be replaced asap before it sends shrapnel through the whole system.
I have had them work and make no sound at idle, then when revved up sound like that.
if you confirm that is the source of the noise then just take the belt off until you can get it replaced.
and I don't recall if just having it turned off would make any difference, when it happened to me I was like what the hell is that noise? found the source and left the belt off, mad because of it. It's happened a couple times the 1st time the sound was pretty mild by comparison I guess being here in california the thing gets ran 10 months out of the year
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992dr
Full Access Member
Just found my rear end is leaking, Awesome.
if it's just the rear cover that's a piece of cake, if it's the pinion...well that sucks
Kee Fuller
Full Access Member
I watched it too. We have to do some modifications, gotta put a metal strap to secure the upper fan and i think we will either put the bladder towards the front of the seat, or fold the bladder to make it think someone is always in the seat.
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swathdiver
Full Access Member
Awesome and gratulations!
Of course with my dranconian PA emissions inspection due in a week… 
gooffeyguy
Tom
The last couple times I got gas I noticed small pieces of white plastic dropping off from the inside of my gas cap. It also doesn't click anymore.
Guess I'll replace it for good measure. Anyone have a link to the yellow E85 tethered gas cap?
EDIT: Found it on RockAuto for $12. ACDelco GT347
GM OE #20962524
Guess I'll replace it for good measure. Anyone have a link to the yellow E85 tethered gas cap?
EDIT: Found it on RockAuto for $12. ACDelco GT347
GM OE #20962524
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Mine does this on a recurring basis when the vent hose near the fuel fill gets impacted with mud and dirt. One of my future projects will be relocating that vent cap.
