Sensor float is not in lower portion of tank and drilling out the tube will not fix it.
@allenpardon8211
5 ай бұрын
Thanks for the video. Today is 03/26/24 and I just ordered from gmpartsdirect and the cost of the tank is 103 and both caps are 8 and 10 dollars. These guys are an actual Chevy dealership in North Carolina. I just hope this is the problem but time will tell.
@sargenthp
2 жыл бұрын
Thank you for the video. Just an FYI... The lower part of the tank is just an overflow. Per the Diesel Supplement Manual... "The lower portion will be mostly empty, depending on the operating temperature."
@eleishac8108
2 жыл бұрын
2019 Duramax Diesel Supplement book pg 101 says "The coolant surge tank is divided into two sides. The upper should be filled to the indicated mark. The lower portion will be mostly empty, depending on the operating temperature." Pg 102 tells you the fill and vent process. There's no need to fill the lower portion separately.
@patsgarage2575
2 жыл бұрын
Not to argue with you - but - when you replace the tank - you most definitely have to fill the back tank - if you don't - the low coolant/check engine light will come on - the back tank needs to be at least half full to cover the sensor - and - if your coolant is low throughout the system, when the coolant expands - there will still not be enough coolant expansion to raise the level high enough in the back tank to cover the sensor. The manual is for adding coolant to a properly working system. In that case, simply filling the front tank to the line is fine.
@pearldrops2278
2 жыл бұрын
@@patsgarage2575 Just put some fluid in the bottom half on your workbench before you install the new tank.
@trebbleshooter
4 ай бұрын
Thanks for the video. I used a fluid lubricant hand pump. To drain and then fill the bottom tank. That I got at the parts store. I had the same black chips in my reservoir on my 2019.
@travisfranks2826
Жыл бұрын
What the problem is the Dag blame Coolant they have us use Gets like a gummy on the ball that’s supposed to float You can take it out and fill it up just past the sensor and let it sit for a while drain it out and run some more cleaner in it shake it around and you’ll hear the ball float move around replace reservoir and your alert will leave I’ve had to do this Rockauto sells them for around $68 plus shipping
@Papasan-wr7kl
Жыл бұрын
I have a 2019 also..it jus hit 46,000 miles and now I'm getting the message across the dash..I checked the level and added coolant back up to the cold line..it's still coming on..so I'm getting ready to order the tank and install my self..
@bib2010bib
2 жыл бұрын
Thanks for this video man. I just took my truck in for the engine block heater recall and now I have coolant sensor issues. They say it wasn't their doing so they want to charge me for it! So now, with thanks to your video, I'm gonna replace the whole damn thing like you did if they don't come to their senses and fix it on their dime. Its April 6 2022 as I write this. I'll let you know how it goes.
@travisfranks2826
Жыл бұрын
RockAuto is cheaper place to get one from
@black_sheep_fab9411
Жыл бұрын
Same here! Zero issue until they did the recall
@miked5357
10 ай бұрын
Did you end up changing the tank?
@jonmatlock277
2 жыл бұрын
My 2018 gmc 2500hd had head gaskets that was causing the low coolant light to keep coming on. It had been coming on and off for 2 years . Truck never over heated , but on cold mornings I could smell coolant out the exhaust. Took it to The dealership where I bought the truck told me they would just keep a eye on the fluid level . I took it to another dealership and they repaired itLuckily it was under 100,000 miles warranty but I had to pay for coolant tank 439.00 . The Sevice advisor said they had seen a ton of them for head gaskets
@patsgarage2575
2 жыл бұрын
That was my first fear - a head gasket - new tank has been in there for a few months now - no issues so far. Thank goodness for warranty - I can't imagine what a head gasket replacement on one of these would cost....
@ant03609
2 жыл бұрын
Mine is doing some thing. Hope like hell no head gasket. I habe 2017 gmc 3500hd SWD. Only 32,000 miles on it. So you say yours has 100,000 mile warranty?
@jonmatlock277
2 жыл бұрын
@@ant03609 yes it has a 100,000 mile warranty
@ant03609
2 жыл бұрын
@@jonmatlock277 dang that's nice . I just missed my warranty. Only has 32,000 miles . But is 2017. Got antifreeze leak . I think coming from res tank. Idk cause can't visually see and leak . But right on the ground under truck. Sucks for me . Just hoping hairline crack on bottom or res tank. Getting oem in this week. See what happens. Pray for me
@paulsimmons9579
2 жыл бұрын
I've got to do this to my truck soon. Thanks for taking the time to make a video of this repair. Good job.
@trevonfowler9522
Жыл бұрын
great video man. super informative and helpful!
@lmc12345789
2 жыл бұрын
I have to do this same job on my 2019. Is it possible to add the coolant in the lower tank before you install the tank?
@patsgarage2575
2 жыл бұрын
I did not think of that- I believe you could but the inlet under the lower cap is small - might take as long to fill it that way as it does through the vent hole in the top?
@crashdsnowman1
7 күн бұрын
you don't need to fill the lower tank, it's an overflow
@steverodriguez4871
Жыл бұрын
I don’t understand why they can’t just have a regular tank
@mikef6706
2 жыл бұрын
What are the 2 caps for? I have never noticed 2 caps on a coolant tank.
@patsgarage2575
2 жыл бұрын
I believe it is a pressure relief system - similar to an old school rad cap - it reaches a specific pressure then opens allowing pressure / coolant into the overflow drain. The caps are two different part numbers.
@patrickkroll7950
2 жыл бұрын
Thanks for the video, side question: What parameters can you monitor on that banks gauge? Looks nice and would like one but looking at their system they seem to show the parameters the ECM makes available unless you add aftermarket sensors. Im not looking to add aftermarket sensors just want a gauge where I can monitor things a bit more while towing. Do you know where I could find a list of parameters that is particular to these trucks so I can make sure I can monitor what I want before buying?
@patrickkroll7950
2 жыл бұрын
Finally found an answer to my question after a lot of googling, might pick one up now! Thanks again for the great video. Ill be tackling the tank replacement when it shows up.
@patsgarage2575
2 жыл бұрын
@@patrickkroll7950 I had the same issue - trying to find a comprehensive list of all the parameters the Banks will monitor is difficult. Why the factory does not have an "option" for some kind of "info" center is beyond me - I think that would be a great feature to have. I like the banks - plug and play and it does not alter your ECM - I've learned a lot about this Duramax by learning what all the parameters mean and still learning how to best use the data.
@bubbaP116
2 жыл бұрын
I’ve asked this earlier on a video in hopes I would get a response, but can you not just let the fluid flow through the little 1/8 inch hole on top? Not trying to be rude just curious
@patsgarage2575
2 жыл бұрын
You can but it takes forever.
@patsgarage2575
2 жыл бұрын
You can - but it takes a really long time -
@timothybrown2664
2 жыл бұрын
I saw a video where you take a weed or bug electric handle sprayer and just clean it up. You can spray into that little whole if need, but also works for pumping back and forth. Problem is usually get sensors off again because of the crud at the bottom and bad sensor. I have a 2019 that has had this issue as well. Good video.
@jasonhughes9741
2 жыл бұрын
Did you have to drain any out the bottom of the radiator drain plug before starting or just what you took out of the tank?
@patsgarage2575
2 жыл бұрын
@@jasonhughes9741 No - the tank is as high as the rad. I just siphoned the coolant out of the front / top tank down to the level of the hose that goes to the rad.
@evans4119
Жыл бұрын
What is the part number
@jessebecool1189
2 жыл бұрын
Thanks for the informative video
@garyclark1135
Жыл бұрын
You can fill the bottom tank before putting it in.
@liviunicolae7308
Жыл бұрын
Hi ,did you get any engine light after taking off the batery polls
@patsgarage2575
Жыл бұрын
No lights and no codes.
@alanwhipple8467
2 жыл бұрын
Does new tank come with sensor already in it ??? Part # ??
@patsgarage2575
2 жыл бұрын
Yes - it comes with a new sensor - GM Part# 84257137
@jasonhughes9741
2 жыл бұрын
A really dumb question on my behalf... My bottom half of the tank will not keep fluid in it, assuming that is not normal? I have tried filling it in the past and it's like there is a block or something because the fluid exits and remains empty.
@patsgarage2575
2 жыл бұрын
Down in the back - bottom there's a "cap" behind that cap is a small hole - much like the one at the top cap. That's the bleeder for the back tank - if the system is over pressured, the bottom cap allows pressure/fluid to bleed off - goes out an overflow tube that comes out of the neck for that cap or could be the cap is bad? I've also read - If there is nothing leaking on the ground, and you keep losing coolant - it could be a leaking head gasket - allowing fluid into the combustion chamber or out the exhaust.
@patsgarage2575
2 жыл бұрын
I'm also wondering if it might be something "bad" with the tank. In my case, I kept getting the low coolant warning, I'd ceck the tank and the back tank was low or empty. I'd fill it up - drive it for a day or two, then get the warning. I thought it was a bad cap - changed those - same thing. It got to the point where the low coolant sensor was caked in gunk and even with the back tank full, would throw the low coolant warning. With the tank swap, all that went away. Maybe there's a crack between the tanks and it's not allowing the expansion of the coolant system to work properly?
@jasonhughes9741
2 жыл бұрын
@@patsgarage2575 I ended up replacing the entire tank finally. I'm thinking about cutting the old one up just to see inside. Thank you for the video as it was what finally got me to take on the task.
@crashdsnowman1
7 күн бұрын
You don't want or need to fill the bottom tank it is an overflow and the sensor float is not located there. I've seen 4 bad videos on replacing this tank today.
@bryanh2646
2 жыл бұрын
Nope.
@scottperry3790
2 жыл бұрын
I would suggest y'all read the owners manual supplement diesel. It states the lower portion should be empty are very little coolant under normal conditions
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