Vortec 4.2L I-6

C
Life expectancy of timing chain, guides, and tensioner?
Replies
6
Views
3K
Ilikemy3s
Ilikemy3s
M
NEED HELP Oil dipstick measurement
Replies
10
Views
2K
flyboy2610
flyboy2610
P
Code P0420
Replies
4
Views
1K
pell
P
Trekie47
Exhaust guidance
Replies
12
Views
2K
Trekie47
Trekie47
J
Looking at a used '08, possible exhaust manifold leak?
Replies
7
Views
2K
vipergg
V
mrrsm
Performing an Engine Swap in a 2007 Chevrolet Trailblazer
Replies
0
Views
3K
mrrsm
mrrsm
F
NEED HELP 02 Trailblazer LT Over heating
Replies
6
Views
923
JayArr
JayArr
T
Not firing
Replies
6
Views
957
mrrsm
mrrsm
R
No crank, no start
Replies
5
Views
1K
JerryIrons
J
H
Engine overheating
Replies
5
Views
2K
hugox_89
H
B
2006 i6 Upper engine noise, now have the head open
Replies
16
Views
2K
mrrsm
mrrsm
B
NEED HELP Question?🤔
Replies
4
Views
861
Mektek
M
C
Misfire
Replies
4
Views
1K
JerryIrons
J
Dubchevy74
Fuel guage.
Replies
3
Views
782
mrrsm
mrrsm
littleblazer
NEED HELP Transmission shift linkage issues
Replies
7
Views
2K
Blckshdw
Blckshdw
Repairman77
04 TRAILBLAZER 4.2 WONT REV PAST 3K?
Replies
16
Views
5K
mrrsm
mrrsm
C
Head bolt size tool
Replies
12
Views
3K
TollKeeper
TollKeeper
6716
truck sometimes dies at the stoplight with the a/c on
Replies
10
Views
2K
rchalmers3
R
D
2005 Trailblazer crank no start
Replies
19
Views
3K
mrrsm
mrrsm
P
Need help
Replies
2
Views
977
mrrsm
mrrsm
J
NEED HELP TrailBlazer 4.2 crank no start strange
Replies
6
Views
2K
Mooseman
Mooseman
0
Exhaust
Replies
8
Views
1K
Tankcruiser
Tankcruiser
E
2004 Envoy squealing when up to speed, already replaced belt and tensioner
Replies
37
Views
4K
Billdaman1
B
J
Starts then turns off security light comes on
Replies
1
Views
630
TJBaker57
TJBaker57
M
PCMofNC Swap - couple questions
Replies
8
Views
2K
niceguypmp3
N
O
source of rough idle and interpretation of live data
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4
Views
1K
budwich
B
P
P0305 error
Replies
48
Views
6K
PeachesSabrina
P
Timber531
NEED HELP Best way to lock flywheel for harmonic balancer replacement.
Replies
52
Views
7K
Mooseman
Mooseman
limequat
Corvette PWM Fans?
Replies
6
Views
2K
Mooseman
Mooseman
Z
NEED HELP 05 Trailblazer Fuel Gauge Problem. Bad PCM?
Replies
85
Views
7K
Mramses
M
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