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Chevy / GMC Duramax 04.5-05 LLY Forum
04.5-05 LLY Duramax Powertrain
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C
Sticky
LLY Low Oil Pressure
Crasher
Apr 11, 2013
2
22
62K
2 mo ago
by
mickrhines
Sticky
04.5 and 05 LLY issues
DieselX-Bob
Dec 28, 2011
10
11
12
230
254K
9 mo ago
by
Col. Walter E. Kurtz
Sticky
Read Before Posting Please
Durallymax
Jun 8, 2010
12
17K
9 mo ago
by
Col. Walter E. Kurtz
C
Sticky
LLY / LBZ Mouthpiece Flow Data
camdoc
Jul 16, 2009
9
10
11
217
109K
Jul 12, 2018
by
rta1197
Sticky
Engine RPO Codes
ob_1jr
Jan 20, 2008
7
17K
Nov 21, 2016
by
Duramax_diesel
L
Help diagnose possible injector prob
LLY Not?
3 d ago
1
84
2 d ago
by
SlowLml
T
Rear end clunk....Only when wet though???
treydg2003
Feb 23, 2011
7
2K
3 d ago
by
mtp1586
Heater fan blower problems
Dcsynthetics
3 d ago
1
49
3 d ago
by
scottydl
N
Limp mode help!
NailBender98
4 d ago
3
109
3 d ago
by
NailBender98
Lly abs c0035 and c0040
2006gmcdmax
Mar 27, 2018
5
3K
4 d ago
by
Rick Work
Low fuel rail pressure/ wont start
laspesa89
Mar 15, 2013
2
2K
4 d ago
by
Screamingmax95
D
Head gasket, block surfacing
drew74014
4 d ago
2
153
4 d ago
by
drew74014
S
2004.5 LLY Knock and no fuel gauge
Strz02
11 d ago
14
527
6 d ago
by
darmah59
New information on 04 lly Limp Mode
Raven
Aug 15, 2013
2
980
7 d ago
by
Manuel
S
Giving in and having heads done
Sparkmonkey
8 d ago
7
216
8 d ago
by
Sparkmonkey
M
Adapter Plate Coolant Leak Questions
Maine Silverado
Aug 2, 2011
15
43K
8 d ago
by
pauly67
S
What is happening?
skifox
Jan 17, 2012
1
928
10 d ago
by
AllStockLLY
S
LLY Mpg Poll and possible issue?
Silveradojunkie
10 d ago
Poll
3
206
10 d ago
by
blythkd1
C
Another 2005 LLY No start
Chevelle68327
10 d ago
3
168
10 d ago
by
Nate Dmax
S
Rebuild shop in San Diego?
saltyripper55
11 d ago
1
149
11 d ago
by
yip
Head gasket and ARP's worth it on this truck?
AaronOregon
Sep 18, 2016
2
3
51
9K
12 d ago
by
yip
C
PCV Reroute and Now Smoking Really Bad
ckaihara
May 5, 2016
12
4K
12 d ago
by
Arieldmax
S
Engine running too cool
starspangled6.0
Dec 26, 2018
10
1K
12 d ago
by
Scratchyourbum
R
Replace push rods?
r32rtb
13 d ago
0
90
13 d ago
by
r32rtb
Idles fine but jerks on acceleration
austinn61
14 d ago
2
131
13 d ago
by
austinn61
T
Losing Prime
thomas0202
May 22, 2018
2
23
5K
14 d ago
by
Mclilley
S
2005 Silverado Duramax LLY Crank No Start, please help
Shirazdrum
5 mo ago
3
219
15 d ago
by
Shirazdrum
S
2005 LLY cranks but no start .not the usual suspects
smokydave
Aug 11, 2017
1
467
16 d ago
by
SierraSledder
LLY Coolant Leak Passenger Side Rear of Engine
Bransjeep
1 mo ago
2
321
16 d ago
by
AxysAssault
S
Is this fuel filter complete?
scottydl
17 d ago
7
278
16 d ago
by
mray
S
2005 Silverado Duramax LLY Crank No Start, please help
Shirazdrum
5 mo ago
7
566
16 d ago
by
Shirazdrum
E
Top end cleaner. Hurt my injectors
Elcamino
22 d ago
12
535
18 d ago
by
Elcamino
LLY Hydroboost Upgrade....
AlisoBob
18 d ago
5
286
18 d ago
by
oldchevy4x4
Cranks with fuel pressure but won’t fire
austinn61
20 d ago
6
285
18 d ago
by
austinn61
K
04.5 LLY Fuel Rail Pressure 26,100psi ALWAYS
Kidsntote
19 d ago
0
88
19 d ago
by
Kidsntote
Can not manually rotate engine
Wesssin
20 d ago
2
197
19 d ago
by
Wesssin
Leaking injector return line cause injector knock?
keast112
20 d ago
1
129
19 d ago
by
bimmer95
Can not manually rotate engine
Wesssin
20 d ago
0
49
20 d ago
by
Wesssin
L
Trouble codes and electrical problems
lly mafia
Jun 7, 2015
14
2K
20 d ago
by
Aaron513
Suddenly in limp mode, but can't figure out why.
showme
21 d ago
1
164
21 d ago
by
Noble_dmax
1
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04.5-05 LLY Duramax Powertrain
Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.
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