Engine & Drivetrain

Discuss engine and drivetrain items from brakes, transmissions, towing, error codes, anything in the engine bay and so on here.
C
Another 2021 z71 engine problem?
Replies
3
Views
461
Antarick
A
J
Loss of power
Replies
5
Views
132
100cars
1
J
Hard Downshift on Diesel 21 Yukon
Replies
8
Views
406
100cars
1
D
2016 Yukon Denali engine fail
Replies
1
Views
146
100cars
1
robgreg75
Slight shuttering on acceleration
Replies
1
Views
153
100cars
1
M
Transmission/Shifting Won't work 2021 Yukon XL Denali
Replies
4
Views
187
100cars
1
D
2021 Yukon Denali---POS
3 4 5
Replies
41
Views
4K
Norm 427
Norm 427
Fireman591
Nasty looking oil after 5200 miles of driving
Replies
9
Views
493
Gibby13
G
J
Yukon Denali stranded me today ...
2 3
Replies
22
Views
1K
Quark
Q
robgreg75
2021 Tahoe with 6k miles mine has already had a head off
3 4 5
Replies
43
Views
7K
21TahoeDisappoint
2
N
Auto Stop Not Working (yeah?)
Replies
5
Views
1K
tomgilk
tomgilk
Q
How about some gas mileage reports?
6 7 8
Replies
71
Views
6K
TollKeeper
T
Syniba
2021 Yukon Denali - Auto stop/start - any news on disabling automatically?
2 3
Replies
27
Views
16K
Yukon21
Y
S
2021 Yukon Brake Controller
Replies
7
Views
409
MikeMojo
M
R
2021 Tahoe High Country/93 octane or not?
2 3
Replies
22
Views
966
Shunto
Shunto
T
2021 Chev Tahoe Z71 Engine Trouble
2 3
Replies
24
Views
3K
afishinado
afishinado
1
P2828 and P2855 on '21 Tahoe
Replies
4
Views
254
100cars
1
Y
2021 Yukon Shudder
Replies
2
Views
450
PNW VietVet
PNW VietVet
M
2021 Yukon Denali Brake Controller Harness Plug?
Replies
1
Views
285
Samuel Ross
S
Chloe_21
6.2L V8 - 2021 owners
2 3
Replies
25
Views
2K
Chloe_21
Chloe_21
G-Frog
Squeak when starting
Replies
7
Views
287
PNW VietVet
PNW VietVet
Kpwweb
Lifter issues - What Oil Did You Use?
Replies
6
Views
649
robgreg75
robgreg75
E
Oil Catch Can
2 3
Replies
20
Views
4K
Joseph Garcia
Joseph Garcia
A
Brand of DEF for Duramax?
Replies
4
Views
236
AMA1295
A
A
2021 Yukon Denali automatic brakes enabled error
Replies
8
Views
240
April Nalle
A
revengejr
2021 Tahoe RST Abismal mileage
4 5 6
Replies
50
Views
3K
Kpwweb
Kpwweb
Haninoy
Advice on 2021 Tahoe, 5.3 V8 vs. Duramax 3.0
5 6 7
Replies
63
Views
12K
Vic Vinegar
V
T
Auto Stop Function
2
Replies
16
Views
1K
Gibby13
G
gilboyj
5.3 v 6.2 daily use and mpg
3 4 5
Replies
43
Views
10K
boomerc154
boomerc154
ItstheHOFF
Is TRQ a good brand?
Replies
6
Views
377
Doubeleive
Doubeleive
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