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Thread: 95 sc. another crank but no start

  1. #1
    Join Date
    Feb 2010
    Location
    Maumee ohio. 43537
    Posts
    33

    95 sc. another crank but no start

    Any help would be appreciated. I have have a 95 sc that i just recently bought. i bought it not runnin, person said it needed head gaskets. pulled the heads had them checked and they got resurfaced. installed all new gaskets. im sure the car is put back together right, went by the book. the car cranks but wont start. replaced the crank sensor, fuel pump, had the dis module tested, tested good. got a spark tester tool, it fired all the way across, but the spark was orange not a nice blue or white. could it be weak spark? it has 41lbs of fuel pressure at the schrader valve. ive done some readin that the car will run if the cam sensor is bad, mine wont run at all so i kind of ruled that out. any suggestions anyone? also wont run with the maf sensor unplugged, and rented a code scanner and showing no bad codes. thanks

  2. #2
    Join Date
    Jul 2002
    Location
    Roanoke, Virginia
    Posts
    3,356
    Based on the fact that you have fuel and spark it sounds to me like a sensor issue. My instinct says the crank sensor based on what you've described, perhaps even a bad balancer. Have you checked either of these? If either of these are bad the car will crank and crank but will never fire.

    Also may want to check firing order (some books have it listed wrong) - car should still fire and run if wrong, will just back fire. Also never hurts to verify the cam positioning. If you did a headgasket job you probably didn't touch this but not hard to verify.

    Firing Order
    http://www.sccoa.com/forums/showpost...63&postcount=2

    Cam Sensor Position
    http://www.sccoa.com/forums/showthre...ensor+position

    -Tim
    Current Collection
    1994 Thunderbird SC - Auto converted to 5spd

    1995 Thunderbird SC - Auto

    1994 Thunderbird SC - 5spd
    1989 Thunderbird SC - 5spd - Daily Driver
    1990 Thunder/Cougar XR7 - 5spd
    1994 Thunderbird SC - 3v Project

  3. #3
    Join Date
    Feb 2010
    Location
    Maumee ohio. 43537
    Posts
    33
    i did replace the crank sensor already. i did some reading on some other forums and theyre claiming thatif the cam sensor is bad that the car will still run. it will run bad but it will run. my wont do anything but crank over, i cant even get it to backfire. all the bolts are in the balancer and it doesnt wobble when the engine is turning over

  4. #4
    Join Date
    May 2004
    Location
    harpursville, n.y.
    Posts
    115
    you said you had the heads off. did you hook the ground on the injector harness back up. it is a ground wire on back side of driver side head. if this is not grounded the injectors will not work.

  5. #5
    Join Date
    Feb 2010
    Location
    Maumee ohio. 43537
    Posts
    33
    i didnt check that. does the 95 have that?

  6. #6
    Join Date
    Apr 2010
    Location
    Tacoma
    Posts
    5

    95 sc wont start

    Hey
    Did you locate your problem. Mine is intermitant.. runs the wont start then starts. odd

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