Page 1 of 3 123 LastLast
Results 1 to 15 of 34

Thread: 90' T-Bird SC. Help me?

  1. #1
    Join Date
    Mar 2006
    Location
    Oklahoma City
    Posts
    12

    90' T-Bird SC. Help me?



    I bought this car several months ago, and I really like it.. depsite all the problems I've had. I'll run down the list a little bit. I'll be the first to admit I'm not very knowledgable about cars, and I've been having some real trouble. Definately new to the game.

    The car has about 114,000 miles on it, set to California emission standards (though I live in OKC, OK). 2,500 at the dealership. However, it had some problems from the get-go that I worked with them to have fixed. Both window motors were replaced, a new ac compressor and freon conversion kit was put in. Fixed the speakers, put in a cd player. Rebuilt the transmission, and installed a new distributor coil pack.

    After all that I thought I was finished, but now it comes down to 3 outstanding problems with the car. One is just the auto seatbelt on the drivers side is stuck in the forward position, and its motor runs every time the door opens and closes. Second, the temperature gauge is shot. The third problem is a lot more dramatic, and was the reason the coil pack was replaced.

    After driving the car for a little bit (20-30 minutes usually) the power suddenly cuts out, and I can feel and hear an ugly clunking sound (misfire maybe?). I can still drive the car, but the harder you push it.. the worse it gets. The RPM raises but the car lurches forward, and it feels like I'm breaking something important. I always have to put on the hazards and take the nearest turn. Once I turn the car off, I sometimes have trouble restarting, but I've always been able to get it running again and take it home - I just can't trust this car for transportation and it's really interfering with my job.

    Any advice, comments, whatever would be really appreciated. I've had a lot of trouble finding help, and help is needed.

  2. #2
    Join Date
    Apr 2003
    Location
    North Port FL
    Posts
    1,386
    Try spraying some WD-40 into the track of the seatbelt and work it with your hand to free it up.

    Temp gauge look under the hood just above the water pump you'll see a yellow cap that reads something like "Remove before Radiator fill" and make sure its hooked to the sensor.

    The main problem you mention could be tranny related, have you checked the tranny fluid while it idles and warm? Could be the cam sensor also.

  3. #3
    Join Date
    Mar 2006
    Location
    Oklahoma City
    Posts
    12
    I haven't really done anything apart from replacing that coil pack on the advice of a friend. To be honest, I wouldn't even know where the cam sensor is, or how to check the tranny fluid at all.

    I'm doing my part to learn basic car maintenance and repair etc, but until I have better knowhow I'll need pretty specific advice. I'll try the wd-40 for the seatbelt and check the temperature sensor though, like you said.

    Could the problem be something as simple as the wrong gas? Plugs and wires? Fuel filter? Part of the problem is I don't even know what I'm talking about when I describe what's wrong. If it's a tranny or cam problem, what would be the first steps to fixing it, and what would the cost be approx? Could it also be a problem with the computer?

  4. #4
    Join Date
    Dec 2005
    Posts
    395
    does it give you a check engine light when this happens? When the engine is running, does the light come on?

  5. #5
    Join Date
    Mar 2006
    Location
    Oklahoma City
    Posts
    12
    The check gauges light is always on, but the check engine light I don't believe has ever been on.

  6. #6
    Join Date
    Apr 2003
    Location
    North Port FL
    Posts
    1,386
    Well you don't want to start relpacing parts for no reason on a SC it can get costly. Checking the tranny fluid is rather easy look on the passenger side engine compartment next to the throttle linkage almost against the firewall you'll see a dip stick that is for checking the tranny fluid. You do have an auto right? You'll need to check it while it is running and warm.

    You also might want to check the plug wires. I had #1 wire fall off b/c it was under the A/C compressor and I had a hard time getting it on and it caused symptoms similar to yours.

    Could be a major vac leak too tho.

  7. #7
    Join Date
    Oct 2004
    Location
    Charlotte, NC
    Posts
    8,159
    It might be clogged cats causing the misfire...

    Have they ever been replaced?

  8. #8
    Join Date
    Apr 2002
    Location
    Tulsa, OK
    Posts
    767
    Also check the #5 and #6 spark plug wires. You may have them switched.



    http://www.mn12performance.com/mn12h...sparkplugs.htm

    Also, send me a PM, I could come and help if needed.

  9. #9
    Join Date
    Mar 2006
    Location
    Oklahoma City
    Posts
    12
    The cats haven't been checked, no. Very little has been done to the car. I've been doing what I can on my own but without much money or knowhow it's been really limited.

    I'm planning to check the tranny fluid a little later today, as well as the temp sensor.. and if I don't get lost under the hood, the spark plug wires too.

    What throws me is that this is a very intermitant (sp?) problem. The car runs great until these little bouts.

    Also to correct myself before, the tachometer does NOT raise when the power cuts out. I remembered wrong.

    An unrelated question - I'm thinking of joining the SCCoA. It looks like there's a lot of good advice and discounts available for members. Should I?

  10. #10
    Join Date
    Jun 2003
    Location
    Oviedo, Fl.
    Posts
    760
    Have one of the local auto parts stores run a code check to see what codes the car is throwing. Then post each code here, someone will be able to better help you then. Describing what the car is doing not a good way to find the problem.

  11. #11
    Join Date
    Mar 2006
    Location
    Oklahoma City
    Posts
    12
    I know it's not exactly the best way to figure out what's wrong with the car, but it's more or less my last option.

    I took it to autozone weeks ago and they didn't have the right system, so I took it to a family friend who has a transmission place. He ran the codes for me, and I let my uncle do the talking. I never even heard what code it was, but I was told it only came back with one.. and that it corresponded with replacing the coil pack. I did that with no result.

  12. #12
    Join Date
    Nov 2004
    Posts
    204
    First the easy one. SCCOA -- ABSOLUTELY!!!!!!
    It will be the BEST 15 bucks you ever spent. The people are great and the information is even better!!
    You might want to stick your hand down in the center of the crank pulley (with engine off) and check that the bolt head is still their. (one of the signs that the harmonic balancer is gone).

    I had a 90 that would intermitently buck for years. It would be ok then out of the blue I would be "coasting to the curb" or bucking like a bronco. I was real close to selling it when I stumbled onto the SCCOA and found out the "probable" cause. I replaced the crank sensor (need a 5.5mm socket and match cover on BOTH sides). It was exactly what was wrong. Returned my SC to "SC-Ya" condition. Hope you decide to join and BEST of TIMES/luck with you SC!!!
    --Fred

  13. #13
    Join Date
    Mar 2006
    Location
    Oklahoma City
    Posts
    12
    Just an update to anyone interested in helping with my car troubles.

    Yesterday I drove it over to a friends house, and on the way it started to rock like it often does, and then died. The car wouldn't start at all, but I was 2 blocks from his house.. so I locked it up, walked the rest of the way, then we towed it back to his garage. Once we were there we had to charge the battery to run it up on ramps. We replaced the crank sensor, made sure everything was how it should be, and gave it a test drive. Halfway around the block it started to rock (or whatever you would call it) again, and died. We could barely get it started again, and when it DID start it would die if you didn't constantly give it gas.

    After getting it back to his place, we charged the battery again, and tried our best to get it back to my garage. It rocked twice and died 3 times on the way, the last time as I turned onto my street. I had to coast up my driveway and push it into the garage.

    So the crank sensor is ruled out, and it looks like my battery might be shot too. What's the next step? I don't know whether to move to the DIS module, cam sensor.. of if it's even a problem in the ignition system at all. My friend told me to check the fuel pressure, but I wouldn't know where to begin. I have maybe 200 dollars to fix this thing, and that's a push. Is a mechanic out of the question? Should I really keep going on the parts when over 100 bucks has done nothing at all? I'm getting told by several people to get rid of the car, and I'm getting really frusterated.

  14. #14
    Join Date
    Aug 2004
    Location
    Panama city
    Posts
    447

    Question dis

    did the "dis" module ( grey thing on top of the coil pack) get changed as well?
    cutting off after 20 - 30 mins. symptoms sounds real familiar. im going to go with dis module if it was not replaced.

  15. #15
    Join Date
    Nov 2005
    Location
    Boise, Idaho
    Posts
    20
    Try checking the balancer. Does the car have more than 100,000 on it?

    When the balancer went bad one of my 90's, before it totally gave up, I had simular symptoms.

    Is the battery light on dash on while it's running?
    Have battery tested (for free at most parts houses).
    Does your problem start after it's warmed up or does it happen whenever?
    Check the DIS if it's only after it warms up.
    Does it affect your whole powerband or just certain RPM ranges?
    Fuel Filter?
    Bad sparkplug wires?
    Could be the CATs, but usually only if it runs funny all the time (and smells like rotten eggs)

    Oh... and the seat belt thing, you're going to have go get a new plastic drive ribbon for the darn thing. You can get one from the junk yard, but you'll be replacing it soon too.

    Keep Hope. When they run right... They're flat awsome.
    Last edited by SPR BRD; 04-15-2006 at 12:42 AM.

Similar Threads

  1. What's the prefered music of the SC cruizer?
    By puff c in forum Polls Forum
    Replies: 84
    Last Post: 05-04-2013, 10:15 AM
  2. The bird took one for the team
    By 92 Redbird in forum Super Coupe Club of Ontario
    Replies: 28
    Last Post: 02-02-2005, 09:41 AM
  3. Trick Bird
    By 1QuikV6 in forum Non Technical Forum
    Replies: 15
    Last Post: 11-15-2004, 01:22 AM
  4. full side pictures of my bird with 235 60 16 plus lowered in back.
    By blown96bird in forum Non Technical Forum
    Replies: 5
    Last Post: 09-27-2004, 02:02 PM
  5. new bird
    By danekejt in forum Non Technical Forum
    Replies: 2
    Last Post: 05-23-2002, 12:42 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •