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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
D
Fuel Mileage Questions
Replies
9
Views
2K
RebelDS
RebelDS
M
‘23 AT4 3.0 Coolant leak/burp
Replies
9
Views
300
muddernuker
M
W
DEF gage problem
Replies
13
Views
409
pinebaron
pinebaron
JimP
New shocks on 3.0 liter, AT 4
Replies
3
Views
249
Andystoy AT4
A
L
Is a Cai worth the effort?
Replies
7
Views
601
kinghorn4335
K
J
Rislone DEF additive
Replies
6
Views
1K
SmittysAT4
S
K
Engine exhaust cleaning
2
Replies
29
Views
2K
Waterfowler
Waterfowler
EdgerlyB
Air Intake
Replies
5
Views
1K
hdrolling
hdrolling
W
OBDLink
Replies
8
Views
460
why_rick
W
K
Block Heater Question
Replies
13
Views
5K
gemarsh
gemarsh
J
2025 Duramax Diesel - COLD Below Freezing Temperatures Preparation
2
Replies
19
Views
1K
Clarkely
Clarkely
T
Oil drain plug 3.0 Duramax
Replies
8
Views
1K
Thunderstormgrey53
Thunderstormgrey53
K
Not many locations selling Low sulfur Diesel
2 3
Replies
34
Views
2K
Don S
Don S
D
2025 3.0. Diesel AT4 Oil change.
2
Replies
15
Views
5K
gemarsh
gemarsh
S
Def consumption with regular driving
Replies
11
Views
817
SmittysAT4
S
JimP
Flush tranny at 30K with AMSOIL?
Replies
4
Views
405
jonlsu
J
D
Engine Trouble
Replies
1
Views
275
gemarsh
gemarsh
ivey_usmc
S&B intake filter question
Replies
9
Views
2K
D Owens
D
H
Howdy
Replies
6
Views
237
pinebaron
pinebaron
D
Can the Banks iDash #66560 - iDash 1.8 Initiate a Manual Regen
Replies
5
Views
769
SmittysAT4
S
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