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Ford Focus ST Technical Discussion
Focus ST Mk3 Technical Discussion
Mk3 Petrol Engine, Exhaust and Induction
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Z
Is double roller timing chain necessary when doing a built motor?
ZEST3
14 h ago
1
57
13 h ago
by
sttwoton
MK3
Engine Teardown
Alb
29 d ago
2
285
28 d ago
by
Alb
H
Need help with maf connector
Hassan91
1 mo ago
Redirect
–
–
N/A
H
MK3
Need help and advice please
Hassan91
1 mo ago
2
440
1 mo ago
by
Hassan91
Weird engine noise or normal?
grmassey32
2 mo ago
4
538
2 mo ago
by
grmassey32
MK3
Coolant leak
hasler.ortizpalaci
2 mo ago
2
316
2 mo ago
by
the radman
L
Does the st3 hatch down pipe fit the estate???
Leepm
2 mo ago
2
286
2 mo ago
by
snowblind
LSPI Video
Swifty1
2 mo ago
0
285
2 mo ago
by
Swifty1
EGR Valve
TangerineScream😊
2 mo ago
0
219
2 mo ago
by
TangerineScream😊
New Owner With a Worry About Exhaust
Robc1985
3 mo ago
6
646
3 mo ago
by
Robc1985
Ramair induction kit maf sensor location
13iggie
12 mo ago
15
1K
3 mo ago
by
sttwoton
Map required after Custom Stainless steel 2.5 Flexi Back Exhauster with silencer.
RobD
3 mo ago
2
21
976
3 mo ago
by
sttwoton
Sheared vacuum pump drive
Grantstmk3
3 mo ago
7
597
3 mo ago
by
Grantstmk3
Back box ST3
TangerineScream😊
3 mo ago
14
949
3 mo ago
by
STokes
J
timing belt change
john h
3 mo ago
11
845
3 mo ago
by
sttwoton
D
Redline Kapoot!
DontheDragon
3 mo ago
7
588
3 mo ago
by
NickFST3
M
ST Engine issues
Monty02
4 mo ago
7
574
3 mo ago
by
trevorb
GPF
LeeHabbers
4 mo ago
4
387
3 mo ago
by
LeeHabbers
B
MK3
Seeking clarity..
BumblebeeChewna
4 mo ago
3
375
4 mo ago
by
sttwoton
T
MK3
Car is spluttering under deceleration
The new guy
Nov 20, 2021
2
3
44
3K
4 mo ago
by
The new guy
L
Car randomly dies then starts 10 minutes later
LarryL2000
4 mo ago
3
471
4 mo ago
by
Cfc blue
T
"Overheating" problems with my MK3 ST
Turner13
Jul 18, 2017
4
685
4 mo ago
by
Jason Sullivan
Seeping oil and corroded rubber.
Big Al 1982
5 mo ago
11
779
4 mo ago
by
Big Al 1982
Exhaust fitment
ST Ricks
4 mo ago
7
443
4 mo ago
by
Sean B
Interesting watch on the USA Ford 2.0L Ecoboost Engine Misfire and Coolant Consumption Issue Fix!
KAR
4 mo ago
6
525
4 mo ago
by
sttwoton
Exhaust sounds like a puff of air
Nathankerrst
5 mo ago
3
572
5 mo ago
by
Alb
Speak as you find.
sttwoton
5 mo ago
11
872
5 mo ago
by
Alb
S
Air filter housing upgrade?
Stwagon
8 mo ago
3
776
5 mo ago
by
sttwoton
H
MK3
Bolt on replacement for the resonator pipe?
Hale95
8 mo ago
2
652
5 mo ago
by
sttwoton
MK3
Revs dropping when coasting with air con
Shezz
6 mo ago
4
442
5 mo ago
by
Shezz
Car won’t start
Kingsley808
6 mo ago
2
503
6 mo ago
by
sttwoton
Running Full Throttle
Mears8540
6 mo ago
8
650
6 mo ago
by
Alb
Focus ST Cylinder 4 misfire - pulling my hair out
DCJAM
6 mo ago
12
1K
6 mo ago
by
Alb
Front Cover Oil Leak
LeeHabbers
6 mo ago
6
716
6 mo ago
by
LeeHabbers
Cooling Fan
Neill.burke
6 mo ago
1
382
6 mo ago
by
Jason Sullivan
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