Question about Ford Mustang

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I have a 94 Mustang GT, It runs great for about 5 -10 min then just shuts off like someone turned out the lights, It will start again after setting for 15 min or so? Any idea... Much appericiated

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  • Greg T Dec 29, 2010

    Now what I have done is, after running perfect after 10 min or so... like i said it's like someone turned off the ignition... BUT after it dies and wont start unless i let it set for 15 min. I shoot a little carb cleaner into the intake the car will start but wont stay running

  • Greg T Dec 29, 2010

    Ohh and now i Noticed that when the car dies the fule pump noise in the back just keeps going like it's staying on????

  • Greg T Dec 29, 2010

    I have noticed that once the card stops the fuel pump is still running?

  • Greg T Dec 29, 2010

    Car sorry

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  • Master
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Check your crank and cam position sensors as they are prone to heat induced failure. The cam sensor is usually magnetic and the cam sensor Hall effect. I am 95% sure that your fault lies with either one of there sensors. 2 pin socket (magnetic - sine wave output). One pin is 'ground' the other is 'signal'. A voltmeter set to 2 volts AC should measure a signal in the 0.2 to 2 volts range on the 'signal' pin.

3 pin socket (Hall effect, magneto - square wave form output). One pin is 'reference' (5volts), one pin is 'ground' and the third pin is 'signal'. A DC voltage should be detectable in the 0.5 to 1.5 volt range from the 'signal' pin.
It is important that the voltage measurement take place at start up when the engine is cold and again, 20 minutes later, when the engine has fully warmed up to operating temperature. Often the voltage output from faulty sensors declines with temperature rise. Just replace the faulty sensor.

Posted on Dec 29, 2010

  • Joseph Prosser Dec 30, 2010

    The use of carb cleaner to start the ignition can confuse the issue. Timing consists of supplying both a spark and an injection of fuel at the right time. If the timing of the injection is not right then no ignition. By spraying a general supply of fuel (carb cleaner) into the throttle mouth simply avoids the mistimed fuel injection issue. As soon as this secondary source of fuel runs out the engine also cuts out ....right. The input of various cam and crank signals is coordinated by a ignition control module (later the ECU). On some Fords the ICM was located on the distributor body but due to reliability issues due to overheating was later relocated to the inner fender. Check the cam, crank and ICM.

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  • Ford Master
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This sounds like the ignition control module, when it heats up it dies, remove it and have it tested at an autoparts store,this is where i would start.heres a few picture to show you where its located, its on the side of the distributor, hope this helps.I have a 94 Mustang - johnjohn2_47.jpg

Posted on Dec 29, 2010

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