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Thread: Svo wonít start

  
  1. #1
    4 PSI Boost
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    Svo wonít start

    How do I troubleshoot this 84 svo. Car is solid shape
    Pretty sure I have an ecm issue.
    Fuel air and spark and checked off.

  2. #2
    the well known PIA VIN guy Ken Potter's Avatar
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    SVO's: 84,85,85.5,86x2
    How many miles? Verify that the cam is turning. When the timing belt "Goes" it doesn't necessarily break but the rubber teeth simply shear off around the crank pulley. The engine will turn over but nothing happens.

    The easy way to check is to have somebody try to start the car and look down in the gap between the valve / cam cover and the back of the cam sprocket / pulley. It obviously should be turning. If it's not you'll need to replace the belt and retime the engine.

    Since the engine is a non-interference there will be no internal damage to valves or pistons.

  3. #3
    4 PSI Boost
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    It has 38k original miles. Itís been set up for NOS though. Donít know a lot about her history because it was sold to me by the father of the previous owner who passed away street racing. Iím anxious to see how this stang handles!
    Iíll start With the suggested steps. Iíll keep updating!
    Thank you sir! Much appreciated.

  4. #4
    OVER-BOOST!! svono50's Avatar
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    SVO's: 86 1C
    That is a very nice low miler for sure, but that few miles can also be troublesome with items too. Kens idea is a good one as well. After you check to see if the cam is turning, see if it is in 'time'. Bring the motor to TDC on the timing mark, pull the plug in the timing belt cover and see if the cam indicator is lined up with the marker. If it is not in sight, turn the crank another 360 deg to see if it shows up, since the cam turns at 1/2 speed of the crank. If you can, see if the thing is popping any codes by scanning the computer. Without it starting, not sure if it will 'tell' you anything. Lastly, check the TFI wiring harness for condition of the insulation on the wires. 84's are notorious for developing brittle insulation on that area of the harness and creating all kinds of electrical woes. Good luck and keep trying.
    Ted
    86 SVO Mustang
    17 Cooper S Clubman ALL4

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