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Discussion Starter · #1 ·
Anyone else have issues with their engine? After 3,000 miles my check engine light came on and the whole
car / engine started to rattle and putter. Car was at GMC for 5 weeks. They said they replaced the lifters and something
with the fuel. Just wondering if this will be an ongoing issue.
 

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Anyone else have issues with their engine? After 3,000 miles my check engine light came on and the whole
car / engine started to rattle and putter. Car was at GMC for 5 weeks. They said they replaced the lifters and something
with the fuel. Just wondering if this will be an ongoing issue.
Yes 5k miles lifter went out also! I’ve owned 8suburbans since 95 this is the first one I’ve had to put in shop
 

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Discussion Starter · #3 ·
I've been reading and hearing alot of bad reviews on these new engines. Talked to a mechanic and said these new 2021s are breaking down all over the country.
 

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Discussion Starter · #4 ·
Anyone else have issues with their engine? After 3,000 miles my check engine light came on and the whole
car / engine started to rattle and putter. Car was at GMC for 5 weeks. They said they replaced the lifters and something
with the fuel. Just wondering if this will be an ongoing issue.
Truck is now in the shop for the same issue. 2021 yukon already went in and now 2021 sierra. Gm has issues
 

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Anyone else have issues with their engine? After 3,000 miles my check engine light came on and the whole
car / engine started to rattle and putter. Car was at GMC for 5 weeks. They said they replaced the lifters and something
with the fuel. Just wondering if this will be an ongoing issue.
I have a 2021 broken down at 3500 miles new lifters and oil pump and crankshaft. Just went back in with 8500 miles and needs new lifters. Dealership wants to put new engine in car. Already told them do not want the car back.
 

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Discussion Starter · #6 ·
I've been told to ask for a diesel. I have an attorney looking into this for me. Can't believe it!
 

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Keep me posted if you get a replacement
The worst part about this is the road side assistance. They will tow your car for free and then give you $35 dollars a day for a rental. That won’t even get you a four door with the way car rentals are changing these days.
 

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Discussion Starter · #10 ·
Oh ya. I've had to fight my dealer to get me a courtesy vehicle. Right now in a buick over my 2021 sierra at4. I didn't want to drive the yukon across state as I am scared it will break down.
 

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Anyone else have issues with their engine? After 3,000 miles my check engine light came on and the whole
car / engine started to rattle and putter. Car was at GMC for 5 weeks. They said they replaced the lifters and something
with the fuel. Just wondering if this will be an ongoing issue.
2021 AT4 Yukon 7k - had to have it towed to dealership last night. Same thing you described. Service department suspects lifter issue as well. I’ve had Tahoe’s and suburban’s over the last 20 years and have never had problem. Super disappointed that I have a new vehicle with engine problems already.
 

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Discussion Starter · #12 ·
This sucks. Sorry to hear. This yukon is our family vehicle. Can't even trust to take road trips in it. Gm should have big issues here.
 

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2021 Tahoe premier - NAVY VET
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All Tahoe’s/ Yukon’s/suburban’s built after mar 31st 2021 are safe. The suppliers were changed.
427
 

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Anyone else have issues with their engine? After 3,000 miles my check engine light came on and the whole
car / engine started to rattle and putter. Car was at GMC for 5 weeks. They said they replaced the lifters and something
with the fuel. Just wondering if this will be an ongoing issue.
You Bet, Ordered a New 2021 Yukon Denali in Sept 2020, delivered in Feb, 2021, After 3,000 miles, Valve issue, engine shut down on my way to Chemo treatment, got towed to dealer, fixed it, Now 6 weeks later, SAME failure with under 10K miles, even if the fix again, I don't feel safe!!! GM needs Resposable Engineers!!!
 

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Discussion Starter · #16 ·
GM is the worst. Sorry to hear! I had to go the route of obtaining an attorney. GM Is useless
 

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Discussion Starter · #18 ·
Nothing yet. Both vehicles still under 4k miles. Sierra got all lifters replaced but only have 500 miles on it since. Yukon only 1 side of lifters repaired.
 

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5700 miles and 1,000 miles from home on a family vacation and it started knocking. Lifters and pushrods. We are told they are putting heads anf lifters on it but can not get parts! We had to fly home.. First gm vehicle we have ever bought. Have been trying to get ahold of someone at gm that can help.. I told them they can keep it.
 

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Discussion Starter · #20 ·
5700 miles and 1,000 miles from home on a family vacation and it started knocking. Lifters and pushrods. We are told they are putting heads anf lifters on it but can not get parts! We had to fly home.. First gm vehicle we have ever bought. Have been trying to get ahold of someone at gm that can help.. I told them they can keep it.
That is so unfortunate and exactly why we won't take road trips in our vehicles. Crappy thing is I bought 2 GM vehicles for my first time ever! I have an attorney on both mine to try to get crappy GM to do something.
 
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