Engine & Drivetrain

Discuss engine and drivetrain items from brakes, transmissions, towing, error codes, anything in the engine bay and so on here.
C
Break in oil changes.
Replies
3
Views
51
Bill 1960
B
M
2021 Yukon Denali Trailer Brake Control Disconnect
Replies
6
Views
3K
wayloncle
W
C
Is this the tick?
2 3
Replies
24
Views
1K
808RST
8
A
2021 Denali - lifter replaced now camshaft
Replies
9
Views
537
Geotrash
Geotrash
T
13k miles, and engine failure 400 miles away from home!
Replies
8
Views
302
Geotrash
Geotrash
G
9111 miles.. here I sit at dealer 500 miles from home
2 3
Replies
28
Views
3K
Gibby13
G
M
What oil for 6.2?
2
Replies
12
Views
325
TheAgency
TheAgency
Quark
How about some gas mileage reports?
7 8 9
Replies
82
Views
9K
Bob2C
Bob2C
E
Oil Catch Can
3 4 5
Replies
43
Views
6K
Pyramid_Head
P
gilboyj
2WD or AUTO for better MPG?
Replies
9
Views
691
Tyler M
T
A
2021 Escalade vs 2021 Yukon Denali. Warning!! Long read…
Replies
4
Views
306
swathdiver
swathdiver
DangIt
Anyone Having Repeat Issues With A 2021 Tahoe/Yukon/Escalade After Replacement Of ALL Lifters?
2
Replies
10
Views
1K
dmcdaniel1962
D
B
6.2 vs 5.3 and premium gas
5 6 7
Replies
62
Views
4K
Bill 1960
B
Stbentoak
No more Duramax???
Replies
8
Views
896
BrokerThis
B
T
Auto shutoff disable process
Replies
1
Views
385
Joseph Garcia
Joseph Garcia
M
Transmission/Shifting Won't work 2021 Yukon XL Denali
2 3
Replies
25
Views
3K
FutureTahoe
F
R
GM Bi-scan for baby duramax?
Replies
0
Views
149
Rangerdeepv
R
Hollywood666
Has anyone ever put a 12V Cummins in a 3rd Gen? I want to tackle the project.
Replies
3
Views
288
exp500
E
E
What is wrong with my 2021 Escalade? Horrible MPG
2 3
Replies
21
Views
2K
Gibby13
G
A
2nd time Lifter Failure... 2021 Yukon AT4
2 3
Replies
24
Views
4K
mikeyss
mikeyss
T
Substance Dripping
Replies
9
Views
675
Bigmanny
Bigmanny
TrucksterZ71
Vibration at low gear
Replies
5
Views
319
Joseph Garcia
Joseph Garcia
Haninoy
Advice on 2021 Tahoe, 5.3 V8 vs. Duramax 3.0
5 6 7
Replies
68
Views
18K
TollKeeper
TollKeeper
jayoco
Lifter question
2
Replies
16
Views
2K
Quark
Quark
M
3.0L Duramax D.E.F. Gauge Issues?
Replies
5
Views
770
MrMike1289
M
AaronDenaliXL08
PowerStop Brake Upgrade
Replies
2
Views
552
adventurenali92
adventurenali92
M
Lifters
2 3
Replies
25
Views
3K
Micahsd
Micahsd
robgreg75
2021 Tahoe with 6k miles mine has already had a head off
5 6 7
Replies
67
Views
16K
DangIt
DangIt
bigT63
2016 Tahoe Engine Coolant Temp
Replies
0
Views
301
bigT63
bigT63
T
Oil filter leak after 1st change…
Replies
9
Views
891
PNW VietVet
PNW VietVet
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