Loosing Coolant

[15 Z71]

I had mine done about a month ago. New radiator thermostat and housing. Dealer had no clue about service bulletin. They called me and said they found bulletin and did what I told them. (Thanks to this site)

[Jakedem]

I have a 2015 crew cab Duramax that is losing coolant Hmmmmmmmmm

[dat329]

My truck had the same issue and had replaced the radiator and it was still leaking, now they want $300 to finally fix a leaking radiator heater hose since it's not covered under the extended warranty.

 

AC compressor gone as well, so make sure you get these items fixed or replaced before your warranty runs out. These two items alone WILL eventually fail and I think the radiator and labor is over $2k.

 

AC compressor is covered under the warranty but I will have to wait 2-3 weeks for a "redesigned" part to arrive. This truck is gone the minute I get it back. I have to cut my losses before it really start to hurt. I hope the trans doesn't fail me before I sell this POS.

 

Sorry for venting...just so tired of all the issues

 

Sell your truck while your truck still has some value left in it.

[JP_]

Same issue as the rest, just bought my 2015 silverado into the shop yesterday for low coolant, smell of coolant coming from the front. They just called me and its out of warranty. Truck is at 45,100 miles. They want to charge me $975 for just the new radiator with labor and tax not included yet.

 

Edit: my dealer is telling me pretty much that im a liar and making things up on this TSB and that there is no such thing for this truck.

 

Edit #2: spoke to the manager and told him what happen ans the run down of the issue, he called me back 15mins after hanging up and found the tsb and said its 110% under the powertrain warranty and thermostat and radiator are being replaced

Edited May 3, 2017 by JP_

[JimCost2014]

My truck had the same issue and had replaced the radiator and it was still leaking, now they want $300 to finally fix a leaking radiator heater hose since it's not covered under the extended warranty.

 

AC compressor gone as well, so make sure you get these items fixed or replaced before your warranty runs out. These two items alone WILL eventually fail and I think the radiator and labor is over $2k.

 

AC compressor is covered under the warranty but I will have to wait 2-3 weeks for a "redesigned" part to arrive. This truck is gone the minute I get it back. I have to cut my losses before it really start to hurt. I hope the trans doesn't fail me before I sell this POS.

 

Sorry for venting...just so tired of all the issues

 

Sell your truck while your truck still has some value left in it.

That is what i did with my 14, my 16 is a world of difference as far as a better truck. Edited May 3, 2017 by jimcost2014

[dat329]

That is what i did with my 14, my 16 is a world of difference as far as a better truck.

You're braver than I am Jim. Once I get burned, I kinda hold a grudge.... lol.

[JimCost2014]

You're braver than I am Jim. Once I get burned, I kinda hold a grudge.... lol.

$8000.00 trade in allowance from GM, 1500.00 private offer, 3000.00 old age unit cash (dealers could use it on any vehicle they chose) and $1250.00 bonus cash from my GM credit card made it hard not to go with another Chevy. I had my doubts, but no way I was going to get this kind of deal with another brand.

[cbxeric]

Local GM dealer has been good to me, so long as they recognize the problems and repair it for free, i'm good. We have a fleet of over a hundred diesel Fords (and hundreds non diesel) where I work. lots of down time to repair..over and over again. They are the cheaper truck to buy for a fleet, but cost more in the long run. Dealer cannot fix the 6.7 properly and they usually blow up again, took them three tries to fix one F450, they're too complex and the old experienced techs have retired. We are now trying out the Ram 5500 cummins. Unfortunately GM doesn't sell a truck that suits our needs. I can get an amazing deal on an F150 (fleet pricing)... I still wont do it.

 

Sorry a little off topic. Fix my radiator GM, keep me happy. hopefully the problems taper off. I do like the truck.

[HondaHawkGT]

Local GM dealer has been good to me, so long as they recognize the problems and repair it for free, i'm good. We have a fleet of over a hundred diesel Fords (and hundreds non diesel) where I work. lots of down time to repair..over and over again. They are the cheaper truck to buy for a fleet, but cost more in the long run. Dealer cannot fix the 6.7 properly and they usually blow up again, took them three tries to fix one F450, they're too complex and the old experienced techs have retired. We are now trying out the Ram 5500 cummins. Unfortunately GM doesn't sell a truck that suits our needs. I can get an amazing deal on an F150 (fleet pricing)... I still wont do it.

 

Sorry a little off topic. Fix my radiator GM, keep me happy. hopefully the problems taper off. I do like the truck.

 

You could try showing your dealer this letter about the defective radiator.

http://www.gm-trucks.com/forums/topic/194376-letter-cycling-thermostat/?p=1895870

[barto]

I get that this is a little old.  I'm way out of my warranty on my 15 Yukon Denali.  Is there a good aftermarket radiator or do I just go with the ACD?  This 15 Yukon has been the most costly car I've ever driven in my life! 

[Sierra Dan]

Aside from the bad '14- Late '15 GM truck and full size Suv Radiators, prepare to replace your A/C Condenser as well.

They are also defective in the same models

[barto]

This will definitely be my last GM.  I get that all cars have issues. I've just never had a vehicle with so many so quick and no help or willingness from the manufacturer. 

 

I was hoping to find an all aluminum radiator. 

[Zakoske]

On 6/24/2019 at 5:07 PM, barto said:

This will definitely be my last GM.  I get that all cars have issues. I've just never had a vehicle with so many so quick and no help or willingness from the manufacturer. 

 

I was hoping to find an all aluminum radiator. 

https://www.mishimoto.com/chevrolet-silverado-2014-performance-aluminum-radiator.html

[barto]

I did give then a call. It does fit. When they previously had it listed, it was not listed for a Tahoe/Yukon/suburban/Escalade. 

[14burrito]

Did some searching and have not found much feedback on the Mishimoto radiator.

I did DM someone who installed one, no reply.

Any other members who have installed it?
Any feedback?

 

https://www.mishimoto.com/chevrolet-silverado-2014-performance-aluminum-radiator.html

 

Install seems pretty straight forward with no need for front end dissassembly

https://www.youtube.com/watch?v=v_HG7SCPuq4