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Powertrain 2004-2009 Mazda3

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Stock Issues

Questions, Comments, and Problems about the stock setup and general questions.
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51.9K
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Modifications

Questions, Comments, Problems, etc about drivetrain modification issues
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17.1M
130K
17.1M

Forced Induction Discussion

Discussion Turbochargers, Superchargers, NOS and general FI issues.
59.9K
6.6M
59.9K
6.6M

Powertrain Technical Information, FAQ's, How-To's

Articles written by forum members relating to powerplant information about the Mazda3.
4.9K
3.1M
4.9K
3.1M
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Sticky How To: Mazda/Ford 2.5L Swap
14 15 16
308
133K
 by Tyler L
O
Sticky Front Wheel Bearing Replacement 2004 Early 2005
8
8K
 by madmatt2024
O
Sticky Problem: CEL Issues (Please post occurence and solution)
38 39 40
790
228K
 by Wisconsinite762
rpelich
does coil on boot brand matter?
2
129
 by shipo
rpelich
recommended maintenance for a 100,000 mile 2.3L?
2
27
360
 by rpelich
rpelich
changing tensioner assembly and belts, any recommendation for parts?
18
325
 by rpelich
rpelich
which alternator brand TYC, REMY, Wai Global? any of these good?
0
81
 by rpelich
rpelich
techron fuel injector cleaner and check engine light?
1
206
 by madmatt2024
Droptmazda3
knock correction
4
199
 by madmatt2024
rpelich
Normal for Mazda 3 to not downshift on the instrument cluster when slowing down?
0
128
 by rpelich
DAC’s M-3
Valve stem seals
13
292
 by VWandDodge
I
2008 Mazda 3I TCM Transmission control module missing?
11
13K
 by madmatt2024
G
My 2006 3 may have tried to kill me today.. (power steering, radio went out, dummy lights on intermittently)
7
352
 by Geofflolz
robert speed3
Rough idle after new OEM injectors replaced
2
219
 by Evolver_6
T
04 2.3l swap to 2.5l successful
77 78 79
2K
442K
 by Ajar
0
Likely Bad PCV, Will A Oil Filler Breather Cap Help Oil Consumption?
2
214
 by lout
J
2.5 + DISI?
0
155
 by JebusAlmighty
allfiredup
Problem starting my '06 MZ3, seems clutch-related
4
2K
 by Superior1071
Justamazda
2006-2009 mazda 3 engine swap
13
24K
 by TwoTapp
antics
No spark, no codes.
8
7K
 by Tyler L
Diggerr42
2.3l vin 4 swap
1
212
 by shipo
Droptmazda3
Header glowing red after i swapped in a 2010 ford fusion 2.5
2
201
 by Droptmazda3
J
Takeda Short Ram Intake with Ark exhaust for 2.0L 4 Cyl. Mazda 3 2005
1
1K
 by Michi
P
Knock Sensor triggers at 4000 RPM, retarding timing 6 degrees?
0
125
 by PaulyD
A
Check Engine Light and AT light : U0101 TCM issue
2
23
44K
 by Michi
Mazda30599
05 body part compatibility
2
256
 by markdip20
D
SOLVED - Car won't drive - Manual Trans - was "Clutch won't engage"
16
44K
 by Rayaviles23
fdsfdsgfdf
I have hard time to change gears from neutral
7
428
 by fdsfdsgfdf
M
Axle Seal issue
1
267
 by madmatt2024
anarchyx34
Trying to diag P2004. Anyone got ECU ground locations/wiring diagram?
1
284
 by Daniel C.
U
2006 2.3L - Coolant leak at water outlet
9
21K
 by mellethi
Brycewang
what could be the issue
0
162
 by Brycewang
L
177,000 on my 2008 S GT Hatchback. CV boot torn. Thoughts?
4
965
 by Ghostmazda3river
GREGE63
2009 Mazdaspeed 3 engine replacement
0
302
 by GREGE63
Mazda30599
Mazda 3 build questions
10
481
 by shipo
M
Spark plug replacement.
7
394
 by dudeskee1325
T
2007 1.6 TS² Engine Check Light (P0420)
2
699
 by markdip20
Robbinhood
2004 Mazda 3 no spark after motor swap
4
476
 by markdip20
Powertrain 2004-2009 Mazda3 Engine, Drivetrain, Exhaust, etc
288.3K posts
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