foxbody 5.0

  1. 1


    Hello everyone, New to this page here. I have a 1990 Mustang 5.0 ( manual T-5) I just replaced the starter with a brand new SVE high torque mini starter from LMR. I also put in a new fender mount solenoid. When I go to start the car, it makes a loud rubbing / grinding noise. It’s not the same...
  2. opihinalu

    Drivetrain How to identify year of rear end?

    Hey all, I’m shopping for an 8.8 for my fox and I found this on Facebook market place. The guy doesn’t know if it’s an 8.8 or what year it comes from. He says 94-04. Can anyone tell me how to identify? Or just identify for me with this pic? Also, will 94-98 mustang rear ends all bolt up to my fox?
  3. Thepreacher413

    Foxbody issue for 2 years

    I’ve been having this issue for 2 years. Hasn’t been drove because I can’t fix it. When I crank it up cold it’s fine, then when it drops to idle rmps it will dip to 200 rpm real fast and then back to 700 back and forth fast until it dies. When I rev it up, it will come back down to 1000 rpms and...
  4. N

    Engine Fuel pump won’t turn on

    91 GT. Went to start a few weeks ago and battery was dead. Ended up replacing it completely, will crank but no start fuel pump endless priming, read on forums it’s capacitors on ecm. Replaced capacitors which all looked bad and I’m still in the same situation just now the fuel pump doesn’t turn...
  5. J

    Engine 89 lx 5.0 sporadic missing and dies

    I have a maf car it has gt40p heads and tfs intake. It has the smog pump delete and I’ve check for vacuum leaks and the iac. TPS is set right and timing is good. Cap, rotor, plugs, and plugs are good. Any ideas would be awesome.
  6. D

    91 GT Convertible AOD Upgrades

    Hello, I'm looking to upgrade my stock AOD Transmission in my 91 Fox Convertible. My engine is stock, but I have some intake and exhaust modifications. I bought a shift kit from Baumann already, but I want to change the stock gears to a 4.10. I heard that if you upgrade the gears you should...
  7. D

    1991 Mustang GT SN95 5 Lug Conversion, Wheel Sizing and Offset Questions

    Hello, I am planning to purchase 94-95 Spindles for my 91 Fox GT Vert, and looking to buy Fox-Length rear axles. I'm installing Cobra front and rear brakes, and removing the quad shocks, and replacing the front and rear control arms for aftermarket tubular control arms. I'm thinking of going...
  8. opihinalu

    Engine Drove great for 20 minutes, shut off and now no crank no start.

    Hey all. After working on my fox for a while I finally decided to give it a drive. I drove it to my girlfriends house and it drove great, no problems at all and it felt so good to be driving her again. I get to her house and we are going to go get breakfast. We hop in the fox and I get maybe 2...
  9. opihinalu

    Brakes JB weld to fix brake fluid leak?

    I know I know this is probably a terrible idea, but I recently installed a wilwood proportioning valve because my stock one was leaking. When I installed this, on the inlet side the brake line was slightly bent and caused me to strip the female threads on the proportioning valve. I went on my...
  10. opihinalu

    Engine First start after 8 months, smoking in the engine bay.

    I started my foxbody today for the first time in 8 months after I replaced the radiator, added an electric fan, thermostat, hoses, water pump, AC clutch, brake proportioning valve, air intake, transmission cooler, and serpentine belt. It started smoking around the area near the battery and the...
  11. opihinalu

    Brakes Bleeding the brakes

    I installed an adjustable proportioning valve and now I need to bleed the brakes. Do I need to jack up all 4 sides of the car to do this? I can’t locate the bleeder valve on the rear drums so I feel like I really have to get under and behind them for it to work.
  12. opihinalu

    Brakes Am I flaring my brakes the wrong way?

    I stripped one of my flare nuts and I am attempting to replace it. I cut the line and put the new nut on. Now I am trying to double flare the line. I really don’t understand though. I have been practicing this on some 5/16 transmission cooler hardline that I cut off of my car. I could not get...
  13. opihinalu

    Electrical What is this connector?

    What is this connector? It is on the drivers side right next to my power steering filler. It goes into a wiring harness. Also you might be able to see in the first picture, why is power steering fluid on top of the cap? This car has not been run in over 6 months. Is it leaking out somehow?
  14. B

    Engine Cylinder #8 header glowing red after rebuild?

    Hey all! I'm new here, and I'm sure its been spoke about but I have a 84 fox with a carbureted 87 5.0. I'm a little new to cars and just rebuilt the engine. Stock bottom end with TFS2 cam and gt40p heads. Upon the first start up, we let it run for a minute or so and noticed that the cylinder...
  15. opihinalu

    Progress Thread Starting a progress thread for my 86 GT.

    Hi all! I have owned my car for almost 2 years and daily drove it for a little over a year before I decided to start working on it. My goal is to make it into a nice street car doing a little bit of drag stuff for fun. I’m 18 and I have never worked on any car before this one and I have...
  16. opihinalu

    Engine What is this thing?

    attatched to the header closest to the front on the driver side. What is it?
  17. opihinalu

    How to get window run channel weatherstrip in on a power window?

    I am installing window run channel weatherstrip on my 86 GT and I have made it to the point where the weatherstrip goes down into the door panel and you have to connect it to the bracket. There is barely and room to get in there with the window motor in the way. Any suggestions on how to do this?
  18. D

    Electrical 1987 cruise control help

    When I got my 1987 foxbody it had the buttons for cruise control on the dash. I’ve been trying to get it all hooked but I’m running into some problems with the wire hookups under the dash. I ordered the yellow cruise control module but there’s only one plug for it under the dash and two white...
  19. opihinalu

    How do I remove the seat belt anchor cover?

    1986 GT. Can’t figure it out.
  20. red5.0fox

    Fox GT40P Heads Exhaust Setup

    Im sure this has already been answered, but it's hard to find a straightforward answer on the interwebs. I wanted GT40 heads, but junkyard had the P's for 70 bucks so here I am. I know about the sparkplug situation, and atleast I know I need 90* boots. Speaking of which can someone send a link...