Jason in DLH
Cheeseburger and Fries
Oh brother. Haha!
What did you do to your NNBS GMT900 Tahoe/Yukon Today?
- Thread starter phattyford
- Start date
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Sparksalot
Elite Member
Exactly right. Which is why it needs to happen.
Correct acronym:
Read
The
*******
Manual
Politically correct acronym:
Read
The
Fine
Manual
[emoji106][emoji6]
George B
¯\_(ツ)_/¯
Battery is taking a lot of charge since it got cold out. I don’t know how old it is except that it was installed when this truck was over seas. What yall say? Replace it?
CaptainAmerica1
Full Access Member
Nope run it till it dies. That meter wanders all over the place as it charges, based on electrical load.
if you have my luck the dam thing will just die when it's freezing raining and windy on a Sunday evening when everything just closed, if you do not know how old it is I would be safe rather than sorry. Costco has decent prices on the interstate agm
Should be a round sticker on the side of the battery somewhere with a born on date on it.
avalonandl
Full Access Member
The adaptive charging on these 900's has the voltage meter all over the place as stated by CaptainA . Its difficult to figure out if you have a bad battery on these models. Check your battery cables at the battery and the ground to the frame.
avalonandl
Full Access Member
I routinely register over 14 volts.
usually (not always) when the battery gets weak you start seeing the voltmeter move around more, with a fresh healthy battery it should stick closer to 14. just my experience with both the nbs and nnbs. I think @kbuskill or somebody just put a new battery? you see any difference in the meter movement
Jason in DLH
Cheeseburger and Fries
Mine reads 14 or slightly more or a few volts less, never that high.
George B
¯\_(ツ)_/¯
I have owned it almost a year now and never seen it that high either. I measured 14.5 and some change the other day with my meter when doing some other troubleshooting. I know the terminals are clean and tight. I may try throwing the charger at it but I am not in the mood to take chances with an unknown battery either and may just toss a new one in it. I was just wondering if maybe the alternator has decided to overcharge for some reason.
when I put my new battery's in a few months ago I noticed a difference right away, even now the meter is almost always sitting on 14v it moves sometimes but not a lot and not very often.
Just Fishing
Can't fix stupid
got the cam out, i see copper on the front cam bearing.
guess i'm yanking the engine for cam bearings?
guess i'm yanking the engine for cam bearings?
George B
¯\_(ツ)_/¯
Seemed to behave better on the way home. Maybe I can do some tests with my Tech2. Gonna look for a date code and maybe have it load tested. If it fails or is questionable I will replace it.
Just Fishing
Can't fix stupid
so... how bad can cam bearings be and be ok...
Tonyrodz
Resident Resident
That sux!got the cam out, i see copper on the front cam bearing.
guess i'm yanking the engine for cam bearings?
I paid a machine shop $350 to do it--with parts and labor. Supposedly need a cam bearing tool to do it.so... how bad can cam bearings be and be ok...
Just Fishing
Can't fix stupid
I sorta would like new rings anyways...
Second look and it's not too bad, but still.
I do have that melling hp hv pump... lol
If I spend too much more on this 5.3, i would rather just try and source a 6.0 or 6.2.
decisions decisions.
Second look and it's not too bad, but still.
I do have that melling hp hv pump... lol
If I spend too much more on this 5.3, i would rather just try and source a 6.0 or 6.2.
decisions decisions.
