Vortec 4.2L I-6

rolo95
NEED HELP 2002 tb Oil leak spilling in to the belt
Replies
11
Views
604
Mooseman
Mooseman
G
NEED HELP 4.2 cylinder sleeve replacement
Replies
40
Views
2K
mrrsm
mrrsm
Drec
NEED HELP Looking for info on testing COP, good ohm range
Replies
1
Views
333
TJBaker57
TJBaker57
T
NEED HELP After putting in new rebuild 4.2 Envoy can't get it to start up.
Replies
7
Views
576
azswiss
azswiss
A
NEED HELP Clean Throttle & MAF Sensor... Still Rough at Idle...
Replies
8
Views
702
mrrsm
mrrsm
A
NEED HELP Belt Tensioner?
Replies
14
Views
964
Realism
Realism
A
NEED HELP Manually Adjust Transfer Case Position?
Replies
21
Views
2K
AC75TB07
A
S
NEED HELP difference between a 2005 4.2l and a 2006 4.2l short block
Replies
2
Views
582
Mooseman
Mooseman
stvrob
NEED HELP Oil Pressure guage drops to zero (sometimes) during idle
Replies
5
Views
610
TJBaker57
TJBaker57
S
NEED HELP 02 Envoy cooling issues
Replies
7
Views
762
Scooter72
S
P
NEED HELP P0102 and P2101
Replies
9
Views
781
pell
P
cornchip
NEED HELP VVT disassembly information needed.
Replies
1
Views
422
mrrsm
mrrsm
BlueDazing
NEED HELP 2002 Chevy Trailblazer no crank
Replies
158
Views
7K
TJBaker57
TJBaker57
E
NEED HELP Envoy Parasitic battery drain
Replies
1
Views
749
Mooseman
Mooseman
H
NEED HELP Fuel Pressure regulator location
Replies
19
Views
2K
Harut
H
T
NEED HELP "Top End Soak" ... question
Replies
11
Views
6K
TollKeeper
TollKeeper
K
NEED HELP 2008 Trailblazer No Spark
Replies
13
Views
2K
budwich
B
D
NEED HELP Wiring diagram & pinout chart .
Replies
2
Views
4K
mrrsm
mrrsm
WhiteWolf
NEED HELP Fuel pump relay
Replies
3
Views
780
WhiteWolf
WhiteWolf
J
NEED HELP 02 envoy rep
Replies
15
Views
2K
Mooseman
Mooseman
L
NEED HELP 2002 GMC envoy won't start
Replies
3
Views
1K
59840Surfer
59840Surfer
P
NEED HELP Shifting problems
Replies
0
Views
714
pell
P
John Koda
NEED HELP Surging or lunging
Replies
3
Views
828
John Koda
John Koda
M
NEED HELP Oil dipstick measurement
Replies
10
Views
2K
flyboy2610
flyboy2610
F
NEED HELP 02 Trailblazer LT Over heating
Replies
6
Views
926
JayArr
JayArr
B
NEED HELP Question?🤔
Replies
4
Views
861
Mektek
M
littleblazer
NEED HELP Transmission shift linkage issues
Replies
7
Views
2K
Blckshdw
Blckshdw
J
NEED HELP TrailBlazer 4.2 crank no start strange
Replies
6
Views
2K
Mooseman
Mooseman
Timber531
NEED HELP Best way to lock flywheel for harmonic balancer replacement.
Replies
52
Views
7K
Mooseman
Mooseman
Z
NEED HELP 05 Trailblazer Fuel Gauge Problem. Bad PCM?
Replies
85
Views
7K
Mramses
M
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