Fox 5.0 Mustang Tech

Technical discussion related to the Fox body 5.0L Mustang.

Fox Engine Swaparoo New

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: 1.6K

Threads: 173

Messages: 1.6K

Speed density 302 to carb 351W

May 29, 2026
AeroCoupe

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Electrical How To Pull Codes From EEC-IV In 86- 95 5.0 Mustangs

Replies: 10

Views: 42K

Feb 18, 2026

DadLife0724

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Technical Thread/how-to Index

Replies: 1

Views: 58K

Jul 13, 2024

Noobz347

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Cranks OK, but No Start Checklist for Fuel Injected Mustangs

jrichker
May 22, 2006

3 4 5

Replies: 93

Views: 150K

Jun 2, 2024

Noobz347

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Administrative Questions Requiring An "opinion" Are Not Technical Questions

Replies: 1

Views: 4K

Mar 29, 2017

Noobz347

Normal threads

8

Foxbody high rpms and surging rpms

Replies: 2

Views: 47

Today at 10:53 AM

AeroCoupe

Engine Hiccup at full throttle

keel
Jun 2, 2026

2

Replies: 30

Views: 307

Yesterday at 10:54 PM

Noobz347

Engine Coolant boiling in hose?

Replies: 7

Views: 96

Monday at 8:38 AM

Mustang5L5

K

88 speed density misfire and bucking

Replies: 9

Views: 122

Monday at 6:18 AM

DadLife0724

K

Resolved Need some assistance. Holley Terminator X alongside H/C/I. Very rough/inconsistent idle

Replies: 0

Views: 46

Saturday at 12:17 PM

karhoot

K

J

Engine Tuning...?

Replies: 7

Views: 119

Saturday at 10:12 AM

Blown88GT

C

Engine Idle cuts out

2

Replies: 22

Views: 524

Friday at 8:28 PM

KRUISR

Electrical Defrost switch ignition?

Replies: 9

Views: 98

Jun 3, 2026

Teen'93stang5.0

R

Electrical 1987 Map Light

Replies: 7

Views: 126

Jun 2, 2026

Mustang5L5

3

Electrical Starter solenoid green wire?

Replies: 3

Views: 88

Jun 2, 2026

AeroCoupe

Engine A/C QUESTION

2 3

Replies: 51

Views: 2K

May 31, 2026

Mindseye007

A

1987 5.0 speed density Foxbody crank no start

Replies: 10

Views: 142

May 30, 2026

Mcmahst

Fuel Fuel injector cleaner?

Replies: 6

Views: 118

May 30, 2026

evintho

9

Engine Donor '00 Mountaineer meet '91 Fox

2 3

Replies: 41

Views: 531

May 28, 2026

91firecracker

9

Suspension Quad shocks

Replies: 18

Views: 270

May 26, 2026

Mustang5L5

C

Electrical HELP! 1989 5.0 Stick, Voltage Bleed onto Ignition Trigger wire

Replies: 7

Views: 131

May 24, 2026

ChickenDeluxe

C

Engine Contour fan CFM

Replies: 13

Views: 362

May 22, 2026

qikgts

C

92 4cyl with entire 95 gt drive train conversion

Replies: 5

Views: 651

May 21, 2026

Mustang5L5

Suspension End link replacement size

Replies: 6

Views: 104

May 20, 2026

Teen'93stang5.0

0

Drivetrain Engine whistle all of a sudden

Replies: 2

Views: 79

May 19, 2026

General karthief

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