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1991

  1. 1991 aod shifting problem

    5.0L Tech
    Ok guys just an update, I haven't been on in awhile I joined up with a car club we have our own forum too, but im looking for an answer from anywhere I can, we did the motor rebuild got it in running and its timed, now im having a shifting problem, upgraded to a 3k stall. It is fine in first...
  2. 91 Mustang Gt Coupe Issues :(

    5.0L Tech
    I just bought a 1991 Ford Mustang Gt. All was good up until I checked the power steering fluid and heard a grumbling/grinding sound from the passenger valve cover/ bottom end. I hear the exhaust leak on the drivers side. The previous owner had BBK Shorty Headers installed with a H-Pipe. No...
  3. 1991 Mustang LX 2.3L Running rough, backfiring and possibly missing

    2.3L Tech
    Okay. So a few years ago, i bought a used 1991 mustang 2.3 L that was in rough shape. After a while tinkering on it and trying to get it fixed up to be my daily driver (mainly because driving around a mini-van as a daily driver is not very....manly). So I fixed some wiring issues with the...
  4. New Member - 1991 Mustang GT 5.0

    5.0L Tech
    Hey Everyone, We bought this car because I had to have it. A combination of sentimental reasons, plus, my 12 year old is a Mustang fanatic. It will not run and it is an EFI system. I am having some problems figuring it out. Where can I find an explanation of different fuel delivery...
  5. 1991 Ford Mustang Radio Wiring help

    5.0L Tech
    I am swapping the head units on my girlfriends 1991 ford mustang, i looked up a wiring guide and was going well.... until i discovered some anomalies... The "green/yellow" wire that is supposed to be the constant... isnt. I have a brown and pink wire, an all yellow wire, an all red wire, and...
  6. 1991 mustang, how much should I sell for?

    Introductions
    I was wondering if anyone could give me an idea of the worth of my mustang. First off I'm in VA. Okay, so it's and ultra blue convertible. Paint is chipping in a few very unnoticeable places and I have one tiny dent under the driver side panel. It's a 1991 5.0. I gotte be honest I don't know a...
  7. Worth of my 1991?

    Introductions
    I was wondering if anyone could give me an idea of the worth of my mustang. First off I'm in VA. Okay, so it's and ultra blue convertible. Paint is chipping in a few very unnoticeable places and I have one tiny dent under the driver side panel. It's a 1991 5.0. I gotte be honest I don't know a...
  8. 1991 Mustang GT wipers not working, blinker slow and radio turns off and on

    5.0L Tech
    Not sure if these issues are all connect but I'm thinking there is a good chance they are. To begin with my wipers were working but would sometimes stay on regardless of the switch and the only way they would shut off was to turn the car off. The blinkers had been working fine but then started...
  9. mustang 5.0 problems 1/4

    5.0L Talk
    i have a 91 mustang 5.0 my modds are trickflow intakes R-Series rpm range 2500 -7250 and stock e7 heads bbk headers msd 6a box h pipe flowmasters 75mm tb 255 fuel pump e303 cam and 355 gears t5 trany what should i be hiting at the 1/4 mile and are my intakes to much for my moddes
  10. '91 5.0 gear ratio stock

    5.0L Talk
    need some help finding the stock gears for my 91 5.0. the gears are shot and im just starting out any1 got some advice?
  11. 1991 Mustang 5.0 stock gear ratio

    5.0L Tech
    im just starting out in the racing world and bout a '86 gt with a '91 5.0 and cant find out what the stock gear ratio is cause the gears that are in it are shot. any help is great
  12. 1991 Mustang, 2.3L to 5.0 swap

    5.0L Tech
    I have a 1991 Mustang LX. I bought the body of the car and bought another parts car, and made one of the two. The body was from a 5.0 car while the parts car was a 2.3. I have wanted a 5.0 since i was a little girl, but at the time all I could find was a 2.3 engine. The front suspension in the...
  13. What does it take to install an aftermarket stereo in my Mustang?

    Audio, Video, Navigation & Alarms
    I bought my 91 stang conv with an aftermarket stereo included in the deal. The problem is the stereo was not installed properly. I can hook up the wire harness most likely but I don't have a dash mounting kit. I have searched crutchfield and several other websites and can't seem to find one to...
  14. big block 390 in my 1991 mustang?

    5.0L Tech
    ok guys im looking for some help i was just given a 390 with a c6 trans. i have a 91 originally a 2.3 with no trans that i found in a junk yard that was 8 years ago now the car has a 302 with and edelbrock performer package on it no computers running the car all old school under the hood. but...
  15. 1991 Mustang GT rear axle size?

    5.0L Tech
    Can someone tell me what size my rear axle is and what gears are in it if its stock?
  16. New guy from STL, MO,1991 Mustang LX

    Introductions
    Hey guys whats up? im new here but not new to mustangs. i love em and enjoy working on mine. i have a 91 lx red, 5.0 with black interior. it has cobra r's and has come a long way since i wrecked it in january 2009 pretty bad, i slid on some ice and had to replace the core support and inner...
  17. Help!!! Fast idle!!!!

    2.3L Tech
    I think this is the weirdest problem i have ever had....the engine seems to be idling really fast, like the belts are rotating 3 times faster than normal as soon as you crank it....i thought maybe the throttle was stuck open but it wasnt, no gas is being given to it whatsoever(except to keep it...
  18. black on black lx

    Introductions
    Hey. Guys. I've been building these cars since I was 16 years old, recently went int the modular cars and I'm finding it fun to be learning new things . I'm a 5.0 man at heart but these 4.6 cars are really pulling good with boost!
  19. 1991 mustang help overheating problem

    Introductions
    Hi i have a 1991 mustang 5.0 thats having a little overheating problem it. So when im driving on the city the gauge gets about 2 more lanes than half way when im driving on the freeway it gets stays at halfway and does not overheat. I jus recently did the 90k service it i changed the timing...
  20. How to remove 2.3L Airbox and Mass air flow sensor?

    2.3L Tech
    Ive been looking at different threads telling me how to somewhat remove the airbox but cant find any that really explain it well for me. I want to install a Cold air intake for my 1991, 2.3L that I found on mustangsunlimited. I don't know what I have to do to the Mas air flow sensor, if I remove...
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