Engine & Performance

Discuss Engine mods, Chips, Filters, etc. here.
YenloWang
Previous owner installed LPG conversion. How to revert to stock?
Replies
3
Views
1K
bodabdan
B
joezek
Problems with Throttle by Wire
Replies
3
Views
1K
joezek
joezek
S
When should head gaskets be serviced?
Replies
5
Views
1K
holeintheice
H
tekrsq
Not wanting it to be a head gasket
2 3
Replies
28
Views
4K
tekrsq
tekrsq
BP 09
Gearhead Tuning
Replies
1
Views
2K
BP 09
BP 09
tekrsq
Radiator Replacement Question
Replies
2
Views
921
tekrsq
tekrsq
R
Tuned Stealth Performance
2
Replies
19
Views
9K
JExpedition07
JExpedition07
H
3.5 Ecoboost not developing power
Replies
3
Views
993
Hbar
H
M
1997 eddie bauer 5.4 2v random limp mode
Replies
0
Views
784
mikec11
M
K
Tuner
2
Replies
10
Views
3K
prenticect
P
B
Performance Upgrade 4th Gen 2020 Expedition XLT w/tow package
Replies
9
Views
2K
BetterDays36
B
Jstekk
noise when cold in the morning, disappears when warmed up
Replies
3
Views
1K
Jstekk
Jstekk
F
P0139 code
Replies
0
Views
634
Frank Wilson
F
R
P0430 code
Replies
0
Views
1K
Randy Bassett
R
B
5.4 interchange 08 vs 12
Replies
1
Views
1K
bodabdan
B
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