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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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52.4K
22.5M

Modifications

Questions, Comments, Problems, etc about drivetrain modification issues
130K
19.5M
1
130K
19.5M

Forced Induction Discussion

Discussion Turbochargers, Superchargers, NOS and general FI issues.
59.9K
7.4M
59.9K
7.4M

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

Articles written by forum members relating to powerplant information about the Mazda3.
5K
3.6M
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3.6M
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Sticky How To: Mazda/Ford 2.5L Swap
14 15 16
315
174K
 by daisuke
O
Sticky Front Wheel Bearing Replacement 2004 Early 2005
10
13K
 by madmatt2024
O
Sticky Problem: CEL Issues (Please post occurence and solution)
38 39 40
790
240K
 by Wisconsinite762
C
2006 Mazda 3 2.3L Manual: Axle bolt or nut?
2
29
278
 by Davids3
Axela876
Unknown:: Coolant Leak
2
76
 by Axela876
L
Engine Stutter in Idle; 2006 Mazda 3s, Manual (~110,000 miles)
1
70
 by BlueKoda
amazdacar
Unusual automatic transmission problem: 2004 Mazda 3 S 2.3L panel shows shift to 4, but powertrain does not engage
2
159
 by VWandDodge
kbong
hard shift into reverse 2006
1
257
 by kbong
H
Engine Swap Compatibility 2.3 to 2.5
2
26
20K
 by VWandDodge
A
Need engine swap info....
10
290
 by Downermazda
S
Timing cover differences
4
3K
 by Mr.Vee
W
2004 auto 2.3l engine into 2006 manual engine, suggestiions?
2
37
13K
 by Gobucstb12
olorenzo
PCV Valve replacement
16
30K
 by goldwing2000
its_thebeesknees
Strength of 2.5 duratec?
6
389
 by its_thebeesknees
P
Piston directions
2
172
 by BlueKoda
C
Coolant not flowing
2
176
 by Christnunn
S
VTCS Swirl Flap Eyes Broken
8
476
 by superluminal51893
K
Need suggestions
6
297
 by madmatt2024
C
In need of a part. Countershaft Gear for 2007 Mazdaspeed 3
1
158
 by Swappinit2006
Des1001
Better off fixing, or selling?
6
409
 by JavierV
trapper7
Mazda 3 2005 2.0L BK, burning oil and a lot of blue smoke.
2
289
 by trapper7
T
AC Blowing Warm Plus Car Overheating
10
415
 by m3iguy
V
car shuts off
1
169
 by BlueKoda
RayLivingston
2007 Mazda 3 2.3L Fuel Pump Wiring
1
155
 by theblooms
B
Engine Swap - Elation! Then Stumped!
15
579
 by madmatt2024
C
VVT for the 2.3 to 2.5 swap
5
351
 by Swappinit2006
D
Shift solenoid C?
18
17K
 by Milanomike
C
San Diego 2.5 swap
1
179
 by Davids3
amunson4
A/C Help!!!
11
2K
 by madmatt2024
D
When do you change the spark plug coil?
2
26
857
 by theblooms
mads720n
Quite long and inconsistent clutch bite point
1
408
 by DrLAzorTOes
B
2007 Mazda 3 2.3 L Manual AC oil capacity
1
331
 by madmatt2024
D
What after market material do you guys use to replace the oem engine valve cover insulation?
3
447
 by Grendel65
D
How many miles do you have on your 2005 Mazda 3??
7
1K
 by fknsaara
MazdaThreeGuy
2005 Mazda3 Automatic Transmission Shifting like the HULK!!
2
32
2K
 by MazdaThreeGuy
D
Oil leaks from this area, anyone know how to replace this part?
4
721
 by Davids3
Re7r0
Issue with ignition / immobilizer after battery reset
3
263
 by Re7r0
patx35
Thinking about making an open-book write up for the Mazdaedit Personal ROM definitions. Curious if it's something that the community wants.
8
963
 by Grendel65
Powertrain 2004-2009 Mazda3
Engine, Drivetrain, Exhaust, etc
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290.2K posts
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