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125
G
Info:
Sticky
4.8/5.3/6.0 Tips and Tricks
GetSome8.1HD
Mar 8, 2009
Locked
0
23K
Mar 8, 2009
by
GetSome8.1HD
G
Info:
Sticky
8.1L Tips and Tricks
GetSome8.1HD
Mar 1, 2009
Locked
2
78K
Mar 6, 2009
by
steady eddie
4
8.1L EGR Delete
406jeep
Aug 3, 2010
27
39K
Feb 25, 2024
by
Uncledim
Best Performance Upgrades for 8.1L/496
CHEVYHD496
Feb 20, 2009
2
3
4
95
280K
Feb 19, 2024
by
mfmotorsports
P
Question:
06 8.1 issues
Pops18261
Feb 12, 2024
4
271
Feb 13, 2024
by
ancho
1
Question:
8.1 low oil pressure
1HiLimo2
Dec 8, 2022
6
2K
Feb 13, 2024
by
1stdeuce
8
Question:
1987 350 loses coolant out back of block
83Chevy
Feb 4, 2024
14
518
Feb 9, 2024
by
57diesel
M
Question:
Cold air intake install
mistyd145
Feb 2, 2024
2
198
Feb 3, 2024
by
57diesel
S
Question:
1994 K 3500 454
sjbo659
Jan 21, 2024
1
221
Jan 22, 2024
by
ancho
Question:
350 Gas engine 150,000 miles
Ben A Gonna
Jan 16, 2024
12
687
Jan 20, 2024
by
Ben A Gonna
8
1980 350 cooling issue
83Chevy
Jan 13, 2024
8
337
Jan 20, 2024
by
83Chevy
8
Question:
1987 Chevy 350 TBI doesn't run
83Chevy
Dec 24, 2023
6
292
Dec 31, 2023
by
GrouchyOldMan
2
8.1 vortec no throttle response.
2001 8.1 yukon
Nov 11, 2023
15
944
Dec 20, 2023
by
macdaddyof9
Rate my plugs just removed for change
freecableguy
Dec 14, 2023
5
311
Dec 15, 2023
by
OkDually
O
Question:
Help with sensor ID 7.4L
o0TheDarkSkull0o
Oct 4, 2023
3
811
Dec 4, 2023
by
ancho
8
1980 Chevy K20 snapped leaf spring
83Chevy
Dec 3, 2023
7
361
Dec 4, 2023
by
83Chevy
Question:
2003 GMC 2500HD 6L: Electric Fan Choice..??
steakman
Jun 5, 2023
22
2K
Jul 23, 2023
by
steakman
K
Question:
GMT900 2500 Suburban fuel tank size?
KD4UPL
Dec 3, 2022
9
3K
Jul 16, 2023
by
KD4UPL
Info:
Tire Sizes
steakman
Jul 13, 2023
2
872
Jul 13, 2023
by
steakman
Question:
Radiator support
DXN1EL
Jun 15, 2023
5
1K
Jun 22, 2023
by
DXN1EL
Question:
CFM output of Stock 6L (2003 GMC 2500HD) FAN..?
steakman
Jun 10, 2023
1
465
Jun 10, 2023
by
shakenfake
R
2023 6.6L GMC AT4 exhaust
reb0957
May 25, 2023
0
491
May 25, 2023
by
reb0957
Question:
i have done a 1995 GMC dually that had a 6.5 turbo desoil in it that i pulled and 2003 5.3ls DBW LS swaped
jameslogan534carterl
Feb 11, 2023
5
1K
Feb 27, 2023
by
jameslogan534carterl
P
Cat stud removal
P35
Jan 30, 2023
3
681
Jan 30, 2023
by
OkDually
8.1 crank/ no start
snowman4evr
Mar 27, 2018
2
36
10K
Jan 26, 2023
by
GrouchyOldMan
8.1 L vortec ticks when warm only gets louder with acceleration and oil pressure gauge fluctuates
Jmpaulin44
Jan 6, 2023
4
1K
Jan 26, 2023
by
freecableguy
8
Question:
2001 8.1L new fuel pump replacement not working
83trekker
Jul 10, 2022
2
1K
Jan 26, 2023
by
GrouchyOldMan
Yukon XL Vortec 8100 Engine Cover P/N
freecableguy
Jan 24, 2023
6
731
Jan 24, 2023
by
freecableguy
I
Which GMT800 Suburban 2500 to keep? Quadrasteer or 8.1...
iptman
Dec 20, 2021
Poll
2
29
10K
Jan 21, 2023
by
freecableguy
K
Info:
2018 GMC Canyon 3.6 thermostat
Keith_J
Nov 14, 2022
0
917
Nov 14, 2022
by
Keith_J
2003 Harness/pcm
Meatwad
Oct 30, 2022
2
786
Nov 2, 2022
by
Meatwad
Question:
1997 5.7 Misfire Help
Tr00b
May 24, 2022
25
2K
Oct 7, 2022
by
Tr00b
F
Question:
2019 6.2 gas seirra
FRANK1958
Aug 15, 2022
1
996
Aug 15, 2022
by
FRANK1958
D
Where does the blue wire with the JL1 option terminate?
dkad260
Aug 12, 2022
4
894
Aug 13, 2022
by
heymccall
D
Seeking assistance to diagnose ITBC
dkad260
Aug 11, 2022
12
876
Aug 11, 2022
by
dkad260
Question:
1994 Suburban 5.7 TBI passenger side cylinder bank running rich
Ben A Gonna
Jul 19, 2022
19
2K
Aug 5, 2022
by
Ben A Gonna
W
8.1 Suburban upgrade questions
Wombat Ranger
Jul 27, 2022
2
2K
Jul 28, 2022
by
Mikey52
1
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