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5.0

  1. T

    Fox *Solved* Motor mount bolt question

    I’m replacing the driver’s side engine mount and removed these bolts. Have anyone seen them before? They felt like they were torqued in by hulk. Now, the bolt from the back won’t thread in when installing the new mount. They appear triangular, but I’m at a loss as to where the previous owner got...
    • TDM389
    • Thread
    • Mar 21, 2026
    • 5.0 engine mount
    • Replies: 3
    • Forum: 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  2. S

    5.0 Rebuild

    Hello, First time poster and excited to be here. Picked up my first Mustang - 1990 5.0 with a 5 speed a few months ago. It appears to be a 7up edition but have not verified this. So I've only drove it about 45 minutes home after the initial purchase and then around the block a couple times...
    • smittys7up
    • Thread
    • Nov 29, 2025
    • 5.0 foxbody gt40p rebuild
    • Replies: 8
    • Forum: 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  3. X

    Engine 5.0 Head Gaskets installed wrong block coolant passages???

    Hi all, I’ve been chasing heat problems for a while now. About 9 months ago I swapped gt-40s and a cobra manifold onto my 5.0 with an Anderson cam. The problem arose after this swap. When the car heat soaks coolant temps can get all the way to 220f, and Intake Air Temps up to 180f. I have a...
    • Xam Sirrah
    • Thread
    • Jul 21, 2025
    • 5.0 fox body sbf
    • Replies: 12
    • Forum: Fox 5.0 Mustang Tech
  4. G

    What's it Worth? ⚠️ I have a brand new set of original KPI/Trick-Flow High Port Cylinder Heads, Stage 2 Ported

    I bought this set of Heads brand new after they were Stage 2 ported and have had them in my basement (dry and controlled) for about 30-35 years ago. Talk about blast fron the past right? Anyways, I'm curious since they're such a rare speed part, what might they be worth? At the time I purchased...
    • GhstRider68
    • Thread
    • Jul 8, 2025
    • 5.0 5.0 fan alum heads foxbody mustang original pushrods rare trick flow trick flow r-series
    • Replies: 14
    • Forum: What is it Worth?!?!?
  5. S

    Drivetrain 8.8 Pinion and 302 rear main seal leaks after replacing. 93 5.0 with t-5

    93 5.0 with 8.8 rear and t-5. Hey guys I have a few questions. Just replaced my pilot bearing, rear main, flywheel pressure plate and clutch, throw out bearing and clutch fork and pivot stud, trans output seal, new rubber motor mounts, prothane trans and crossmember mounts, new u joints, pinion...
    • Steigy4827
    • Thread
    • Jun 23, 2025
    • 5.0 8.8 ford leak pinion t-5 vibration
    • Replies: 10
    • Forum: Fox 5.0 Mustang Tech
  6. B

    High 2k idle(1988 Mustang GT 5.0 non maf)

    Ive been scouring the internet to look for this issue, my mustang is idling at 2k rpm Ive replaced the iac and tps and set them correctly, aswell as setting the idle screw and nothing has changed still idles at 2k Came to get some help on what this issue could be (BONE STOCK 88 Mustang GT 5.0)
    • BurtHurts75
    • Thread
    • May 28, 2025
    • 1988 gt 5.0 foxbody idle issues
    • Replies: 5
    • Forum: 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  7. R

    For Sale 91 Foxbody [cobra clone] 100,??? Miles

    I have a 91 mustang gt hatchback. I hate to sellit but I just don’t drive it or need it at this point in life. It’s a factory all black interior car with no REAL wear on it. It looks 20 to 15 years younger than it is inside! I’m not sure of the mileage on the motor but it has been swapped due to...
    • Rabid fox
    • Thread
    • May 13, 2025
    • 5.0 black cobra fox body mustang silver
    • Replies: 1
    • Forum: Fox Body Mustangs For Sale (1979-93)
  8. Y

    Fox 1984 5.0 EGR & Emissions

    So my 1984 5.0 didn’t pass emissions due to the EGR valve not opening or closing at all I’m looking for a diagram for the vacuum lines for it or any ideas of what’s going on?
    • Ybfav84
    • Thread
    • Mar 21, 2025
    • 1984 5.0 four eyed manual
    • Replies: 5
    • Forum: 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  9. Y

    Brake issues again smh

    So I’m almost done I hope this is the last time. I keep running into issues. 1984 mustang 5.0 did a 5 lug Rear 1995 GT diff and brakes and front 04 cobra spindles and brakes. 1993 booster and 1993 mc Now I’m running into an issue when I press on the brakes the car wants to stall Is it a...
    • Ybfav84
    • Thread
    • Mar 8, 2025
    • 1984 4eye 5 lug 5.0 mustabg gt
    • Replies: 7
    • Forum: 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  10. V

    I’m Back!

    After being without a Mustang for a while I’m finally back in a pony. Just picked up a 2012 GT/CS and it is a fantastic car. Glad to be back!
    • VistaGT
    • Thread
    • Mar 4, 2025
    • 5.0 california special
    • Replies: 2
    • Forum: The Welcome Wagon
  11. Y

    Brake swap

    So I’m almost done with my brakes Do I have to gut the proportioning valve? And can I run my brakes without one? Also I was pumping my brakes and no fluid is going down What could be the issue?
    • Ybfav84
    • Thread
    • Feb 22, 2025
    • 5.0 brake brake conversion four eye foxbody 5.0
    • Replies: 14
    • Forum: 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  12. C

    For Sale 1994 Mustang Cobra

    1994 Mustang Cobra Everything working except for the handbrake. Exterior in good shape for the age but not perfect. Interior is almost like new. Very few modifications. Muffler delete/x pipe. Pioneer head unit and sub in trunk. Cobra R wheels. AC blows ice cold. 96xxx on the dash. Asking $9500...
    • cobrakai
    • Thread
    • Feb 19, 2025
    • 5.0 cobra mustang sn95
    • Replies: 1
    • Forum: SN95 Mustangs For Sale (1994-04)
  13. G

    Introducing my fox body mustangs

    These are my two fox bodies that I have! The silver one is a 1991 convertible LX. The black one with red pinstripes and the cream colored convertible top, which I have been informed by a shop owner and his mechanic that she's all factory original but the exhaust (Which I wasn't surprised...
    • girlcalledkill
    • Thread
    • Jan 15, 2025
    • 2.3 5.0 aod auto trans convertible
    • Replies: 3
    • Forum: The Welcome Wagon
  14. D

    Roller rockers with no compression

    I have a 1990 Mustang that I swapped a rebuilt 302 and t5 into, I got gt40p heads and upper and lower intake, got the heads rebuilt and bought some 6.250 length pushrods with some pro form sbf rockers, was cranking the engine over with a wrench to do a spark plug thumb test and the only cylinder...
    • DPORTER0729
    • Thread
    • Jan 14, 2025
    • 5.0 compression foxbody foxbody 5.0 mustang rockers
    • Replies: 23
    • Forum: 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  15. L

    What's it Worth? 1991 Mustang LX 5.0 Convertible

    My mother in law has a 1991 LX 5.0 with 45k. Leather interior, automatic. Has been garaged its entire life. There is a problem with the transmission where it won’t shift past 2nd gear. Looking to see what the value of the car would be. Thanks!
    • LolaDriver
    • Thread
    • Jan 4, 2025
    • 1991 mustang lx 5.0 value?
    • Replies: 5
    • Forum: What is it Worth?!?!?
  16. S

    Help! Fuel pump not turning on.

    Hey everyone! First time post here. I inherited a 1989 foxbody 5.0 with 72k original miles a couple of years ago. Admittedly life has been busy and have not touched it since I parked it in the driveway. Did a fresh oil change, charged the battery, and went to go start it up and it’ll crank all...
    • Steezin636
    • Thread
    • Dec 13, 2024
    • 5.0 foxbody fuel relay help lx
    • Replies: 35
    • Forum: 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  17. Engine Throwing codes 94, 33, 34, 44, and sporadic engine shutoff.

    While using the Equus Ford OBD I code reader, after preforming the KOEO test and passing then preforming the KOER test I'm getting codes 33 ( EGR valve not opening properly (just replaced it today) and still getting that code why? Code 34 which is the same as 33, code 44 (thermactor air system...
    • Ryu
    • Thread
    • Oct 9, 2024
    • 1993 5.0 code 33 code 34 code 44 code 94 help please lx surging idle checklist
    • Replies: 11
    • Forum: Fox 5.0 Mustang Tech
  18. M

    1993 2.3 Auto to 5.0 Manual

    I have a 1993 Mustang Convertible that I removed the 2.3 4 speed from and I bought a 1989 302 to install. Is there a difference between the parts from the 1989-93? Should I buy engine parts for an 89 or 93? All I have from the 89 is the block, crank and pistons, and I will be using GT40 p heads...
    • malikaimiller08
    • Thread
    • Aug 28, 2024
    • 1989 1993 302 5.0 engine swap foxbody
    • Replies: 36
    • Forum: Fox 5.0 Mustang Tech
  19. Resolved 93 LX 5.0 fox body Smog pump bypass belt size and consequences?

    On a road trip and broke down on the side of the road, seems to be the smog pump cause it seized up won't turn at all by hand. So what size belt do I need, what belt path configuration do I need and what consequences come with driving another 1,000 miles so I can get back home? It's a stock...
    • Ryu
    • Thread
    • Jul 31, 2024
    • 1993 5.0 help
    • Replies: 3
    • Forum: Fox 5.0 Mustang Tech
  20. J

    5.0 Swap into 1959 Edsel Villager Station Wagon

    Hello Everyone, I am new to this forum and hope to get some pointers here to an issue that I am having with this swap. I have a 5.0 and wiring harness that we sourced from a 1987 Lincoln Continental. This was a running driving car before the swap. Now the car cranks and runs but when you try to...
    • jahcdp
    • Thread
    • May 1, 2024
    • 1987 1988 5.0 swap vintage
    • Replies: 15
    • Forum: Other Auto Tech
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