johnnymordoc

Thanks redwngr! This helps a lot - as for maintenance - I know this is a bit forward thinking, but does it have a chain driven crank or is it belt? I recall the Japanese cars had that notorious drive belt that had to be changed around 100K for fear of breaking and wreaking havoc on the top end of your vehicle. As for towing - it appears that the transmission cooler is incorporated into the engine cooling system also? What is a service - what is it going to cost me vs. a gas powered vehicle? Is the everything programable as far as fuel management - are they able to do software updates to tweak things? I have a friend that has a Dodge EcoDiesel that got a software update and I cannot recall if it made gas mileage better or worse for his CA driving - is this something to be concerned about with CA emissions? Thanks.

Quick question - I take the new diesel 3.0 and the larger ones do not have a fuel management system? A co-worker has a 2019 and his gas engine shuts off when he stops? Do the diesels also do this? If so, how is it on wear and tear? In California it cost me almost $100 to fill up my 2014 Sierra 1500 and I am my mileage is steady at about 11-12 mpg. It used to be 20-22 when new. What kind of fuel management is in new trucks - especially with the chip shortages now? I think the rule of thumb is not to by the first year of a major change to the truck line. Any news on the 3.0 Duramax diesels? They have only been out a year or so and wondering about longevity and maintenance. Thanks in advance.

When will the cash cow for the dealers ever end? 2014 Sierra with 78K miles - I have had to take my truck in to have the A/C fixed every year for the 3 years for the same issue. Is there not class action lawsuit I can join from California? First it was the faulty AC condenser - that was covered in 2015 trucks, not 2014. Then the pin hole in one of the lines an another $700. A year later blowing hot air again - took it in and it was the same line they replace year before. Fortunately it was still covered under warranty. This year - blowing hot air again - take it in and they want to charge me to troubleshoot? Really? I complained and got that waived - only this time it is a rear discharge hose that was leaking. They put dye in it and did see some traces on the firewall near the hose they replaced 2x already and changed it for no charge - another $650. In the last 3 years it has cost me almost $1000 a year for my AC. They could have completely serviced the system the first time for less! Any resources in CA that can help? Looking to trade it in and be done with it, while I stall can and the AC works. Does anyone know if the same issues have plagued the 2020's and above?? First thing they ask me is if I have the extended warranty - but does that not stop after 5 yrs? Sorry to ramble - just need to vent. I do not seeing myself as Dodge or Ford man - I have owned a Toyota Tacoma, but love my GMC trucks. Help in CA. JJ

I have a 2014 GMC Sierra 1500 and mine just started doing it - today it was cutting in and out - figured it may be the satellite ? I am in Northern California - San Francisco Bay Area. Any thoughts?

Thanks Gentlemen - do we think it is the dirty injectors? I can start running some Chevron though my tank every once in a while - out here in CA it is about +.30 more a gallon. I guess you get what you pay for? On the additives - is there any GM factory version? If I have it done at the dealer during a maintenance - what are they going to do? Same thing? Pour something into the tank? Thanks in advance. JJ

Folks - 2014 GMC 1500 SLT I have seen my mileage decrease - not sure if it is because I have switched tires from factory to Cooper SRX tires. Is there any safe additive I can add to my gas to clean the fuel injectors instead of having to have them provide that service at the dealer? I used to get between 18-20 mph on the last 50 mile tracker - now it is hovering 16. Thanks in advance for any info. JJ

Folks - I was seeing my mileage at 18 - 20 mpg - up until I had to replace my battery? Not sure if it is a coincidence - not I seem to be averaging about 13.2 and best is about 16. I have about 70K.. 2014 GMC Sierra SLT. Any thoughts? Clean the fuel injectors? Add an aditive to tank to clean the fuel system? Thanks in advance. JJ

I am not familiar with the 2016 A/C issues - just know that when I pressed the dealer about this he mentioned there was Technical Service Bulletin (TSB PIT5331)MC-10145171-9999.pdf http://www.gmcproblems.com/ac-condenser-leaks/ It affected a lot of GM vehicles from Sierra to Escalade and Yukons/Suburbans... it is a crime! Not familiar with any aftermarket - they replacement the put in has the heat shield and when they did the A/C condenser - the did not do the hose that was part of the TSB in 2014...

I thought the A/C condenser was covered in the 2015 and later- it was just the 2014 that did not have the warranty coverage?

Yes, I enjoy my truck - just did not expect to be putting money into it @ 60K .... figure at least 75K or even 100K. I owned a Toyota Tacoma 2006 and all I really did was change the oil........nothing with AC or drive train..... I needed more of a family vehicle... (could not see my mother-in-law hopping into the jump seat) True -- to get myself into something new is going to cost $$$ I am getting better gas mileage with my GMC V8 than I did with the Toyota - In looking at any alternatives out there.... the GM's have the better towing and fuel mileage........ Just going to cross my fingers... they did give me a 2 year warranty on the A/C condenser.. and A/C condenser line that was replaced....... Thanks for bringing me back to reality.... for now.....

2014 Sierra 1500 - 60K Reading this thread is depressing... Never stops. I had to bring my back for the 3rd time.... and am crossing my fingers that they fixed it...... First experience was at about 45K - started blowing hot air... so the did a service - recharge and put the dye in it...$(350) .. that lasted a day. I had one of the faulty condensers .. you could see the dye leaking out the weld.. They fixed that - out of warranty........ $1500 - charged me $700 and figured got off cheap.... $1000. 2 yr. warranty. Month goes by and we had a little heat wave...... turned on the A/C and blowing hot air again..... Took it back... they check it out again and said it was not the condenser but a hose ... had a pin hole....... Again... $1500 quoted and ending up charging me $675 for a hose, seal and freon.... The problem is the dealers know about this stuff...... it generates revenue for the Service Managers. To date - almost $1700..... waiting for the other shoe to drop........... Oh... it did...... At 63K and just hitting the 5 year mark.. the right rear axle started leaking.. said it was past warranty......would not cover it...... $300+ Funny thing is that I had them do a 60K service around 59K and they did not see it..... Are these trucks that bad....... like owning a boat..... The dealer says .... it is 5 years old.... it is the cost of ownership? Really??? Really thinking hard about throwing in the towel on this one..... I figured it would be the last vehicle I purchased ..... get 150K+ out of it...at least 10+ years before any major maintenance besides brakes and tires..... just got the tires.. at least they lasted me 60K. What is next? The computer? Frustrated in CA.

Originally mine was blowing warm air at about 53K and took it in to get it serviced - that lasted less than an day and started me down the "rabbit-hole"... I had mine replaced in March on my 2014 Sierra - it looks totally different from the original one - has some sort of heat shield. Are there any plans for GM to reimburse anyone for the repairs? I got out of there for $700.00 - they stated that the higher cost was due to having to remove part of the front end? They submitted through some GM Customer Service program that "assists" with these type off issues....... It was still very painful to the pocket book!

Any lawyers out there that know how we can get a class-action or recall on all 50 states for this....... It does not seem to want to go away....... I just dropped mine off to get it replaced - GM is working with me on the cost.... still it is out of pocket and I asked what guarantee do I have that they are not installing the defective part? Even thought there was a technical service bulletin (TSB) for the 2016 vehicles.... why are the 2014's and above not covered - even though they had the same part or issue? Very frustrating......

Folks, Is anybody a lawyer out there that has had this problem? Any legal advise? Do we have any legal recourse? I did a quick google search and found these...... https://www.carcomplaints.com/news/2018/gm-ac-compressor-condenser-problems-lawsuit.shtml http://www.radiatorhelpline.com/2017/06/2014-2017-chevy-gm-condenser-widespread-failure.html Looks like a lawsuit in Tennessee? Do we need to start one in each state? California? Texas?

For those who have had it serviced by the dealer - what was the ballpark cost? Did they have to remove the front bumper and parts of the front-end? Will see what kind of $$$ assistance GM can provide. I know that everything is pretty tight in there, now days everything is enclosed. Unfortunately I found it on this website / forum a little late.... hopefully it will help the next guy dealing with this.... Thanks.

Folks - add me to the list...... Just took my truck in to have them check the AC because it was not blowing cold air anymore and said they could do a service on the system by draining and refilling - adding some dye. Everything checked out for a day... at $350.00, figured I was getting off cheap.... Then when went to pickup the truck and the Service Manager checked again..... and ... it was leaking!!! From what I have been reading - GM has known about this for a while and there looks to be bulletins on some of the later model trucks 2015+ for the same issue. My truck is out of warranty - had about 50K on it when started noticing it was not cooling - mentioned it to the Service Manager and they said they needed it for a day...so I would have it done during my next service. They are checking to see if they can get some coverage with the GM Assistance program.... crossing my fingers. Definitely a defect in manufacturing. If they do replace it - how do I know I am getting the upgraded part so I do not have to do it again in a couple years? JJ