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TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Vortec 4.2L I-6
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NEED HELP
overheating 2002 TB EXT
bobo52
Apr 16, 2021
Replies
16
Views
2K
Apr 19, 2021
bobo52
M
Vacuum at FPR?
Maverickxeo
Apr 15, 2021
Replies
7
Views
1K
Apr 18, 2021
gmcman
New plugs fixed my transmission and evap leak
6716
Apr 17, 2021
Replies
1
Views
808
Apr 17, 2021
Mooseman
M
AC problem - yet another electrical gremlin?
Maverickxeo
Apr 14, 2021
Replies
7
Views
883
Apr 16, 2021
Maverickxeo
M
E
Keep blowing ignition j case fuses A and B
Envoy215
Apr 14, 2021
Replies
1
Views
874
Apr 14, 2021
Mooseman
SOLVED!
Cooling system test results.
JayArr
Apr 2, 2021
Replies
6
Views
1K
Apr 8, 2021
JayArr
NEED HELP
02 EXT LT, P1860, P740, P753, P758, P785. Under-hood fuse #34 blown
Brando_TB
Nov 17, 2020
Replies
24
Views
3K
Apr 8, 2021
Brando_TB
Alternator and Thermostat Replacement (How-to)
marinegrunt
Jan 17, 2015
Replies
12
Views
14K
Apr 7, 2021
JayArr
M
Injecteur TB 03
Mikequad
Apr 5, 2021
Replies
2
Views
997
Apr 5, 2021
Mooseman
Different "Limp Modes"
JayArr
Apr 3, 2021
Replies
3
Views
1K
Apr 3, 2021
JayArr
Better fuel economy
Trekie47
Mar 28, 2021
Replies
18
Views
4K
Apr 2, 2021
Reprise
J
P0014
Jdavis84
Mar 29, 2021
Replies
1
Views
653
Mar 30, 2021
Mooseman
How much oil pressure is enough?
TJBaker57
Mar 1, 2021
Replies
14
Views
2K
Mar 29, 2021
Mooseman
Stuck VVT solenoid.
TerryG
Mar 19, 2021
Replies
2
Views
2K
Mar 20, 2021
TerryG
J
4x4 Help
jmabs509
Mar 14, 2021
Replies
0
Views
456
Mar 14, 2021
jmabs509
J
NEED HELP
P0171 Code causing high idle and poor fuel mileage!
ghost_leader07
Feb 27, 2021
Replies
21
Views
4K
Mar 11, 2021
gmcman
N
oil pressure gauge
niceguypmp3
Feb 17, 2021
Replies
4
Views
933
Mar 7, 2021
rchalmers3
R
N
Intermittent starts, runs, then no starts no crank??
netbyte
Jan 24, 2021
Replies
16
Views
2K
Feb 26, 2021
netbyte
N
T
what is this part
thebat
Oct 14, 2020
Replies
8
Views
2K
Feb 23, 2021
Gunner
G
M
PS pump compatibility
Mektek
Feb 14, 2021
Replies
4
Views
863
Feb 17, 2021
Mektek
M
T
Stall issue
TBlazerD
Jan 27, 2021
Replies
15
Views
2K
Feb 12, 2021
gmcman
C
Anyone know what size hex key is needed for the oil pressure test port?
chuey_316
Feb 8, 2021
Replies
2
Views
2K
Feb 8, 2021
Reprise
SOLVED!
Noise Underneath & Rear
Nate8727
Jan 23, 2021
Replies
3
Views
1K
Feb 6, 2021
Nate8727
NEED HELP
Wet Coil Pack on CL#06
ghost_leader07
Dec 31, 2020
Replies
18
Views
4K
Feb 5, 2021
ThatOneWhiteTruck
T
R
LL8 Engine Test Platform Project
rchalmers3
Nov 28, 2020
Replies
27
Views
4K
Feb 4, 2021
limequat
NEED HELP
P0017 CPAS replaced. and still have the code
yazan
Feb 1, 2021
Replies
8
Views
2K
Feb 3, 2021
Mooseman
N
Looking for Mechanic in Rochester, NY
nova72
Jan 13, 2021
Replies
13
Views
2K
Jan 28, 2021
northcreek
Can I get more power from my 4.2?
JayArr
Aug 27, 2020
Replies
38
Views
5K
Jan 25, 2021
rchalmers3
R
I
Electrical
Iginan62
Jan 21, 2021
Replies
4
Views
1K
Jan 23, 2021
Mooseman
S
fuel pressure regulator
steve-in-ga
May 21, 2014
Replies
9
Views
10K
Jan 17, 2021
Isshman Garcia
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Engine & Drivetrain
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