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GMC 1500 AT4 3.0L Duramax Turbo Diesel engine

Discussions specific to the GMC AT4 3.0L Duramax Turbo Diesel engine
K
Block Heater Question
Replies
13
Views
4K
gemarsh
gemarsh
W
Hot! OBDLink
Replies
7
Views
117
gemarsh
gemarsh
J
2025 Duramax Diesel - COLD Below Freezing Temperatures Preparation
2
Replies
19
Views
588
Clarkely
Clarkely
T
Oil drain plug 3.0 Duramax
Replies
8
Views
344
Thunderstormgrey53
Thunderstormgrey53
K
Not many locations selling Low sulfur Diesel
2 3
Replies
34
Views
1K
Don S
Don S
L
Is a Cai worth the effort?
Replies
4
Views
336
olliechristopher
olliechristopher
D
2025 3.0. Diesel AT4 Oil change.
2
Replies
15
Views
4K
gemarsh
gemarsh
S
Def consumption with regular driving
Replies
11
Views
615
SmittysAT4
S
J
Flush tranny at 30K with AMSOIL?
Replies
4
Views
273
jonlsu
J
D
Engine Trouble
Replies
1
Views
170
gemarsh
gemarsh
ivey_usmc
S&B intake filter question
Replies
9
Views
2K
D Owens
D
H
Howdy
Replies
6
Views
163
pinebaron
pinebaron
D
Can the Banks iDash #66560 - iDash 1.8 Initiate a Manual Regen
Replies
5
Views
534
SmittysAT4
S
K
Engine exhaust cleaning
2
Replies
25
Views
918
R467X
R
W
IAT sensor locations
Replies
1
Views
134
gemarsh
gemarsh
D
2025 GMC AT4 Oil comsumption?
Replies
3
Views
323
Desertdog
D
Sevenonfouroff
Improved Stance
Replies
5
Views
1K
Sevenonfouroff
Sevenonfouroff
D
Do you drive in 2H, 4H or Auto?
Replies
9
Views
962
Dive Bar Casanova
Dive Bar Casanova
AdrianAT4
1500 AT4 3.0L Duramax; Level with Bilstein and UCA's
Replies
5
Views
5K
SmittysAT4
S
W
Transmission shift from a stop to 25mph (1st - 3rd)
Replies
5
Views
317
lowaggie
L
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