Question about 2001 GMC Yukon

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Why did my 01 yukon stall out while driving?

Why does my 01 GMC Yukon stall out while driving? Cranks right back up after you turn it over about 6 to 10 times. No check engine light on. Acts like it is out of gas. I have replaced the catalyic converters, fuel filter and pump, and throttle body has been cleaned. Very frustrated please help!

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  • DESHAWN PORTER May 02, 2010

    The fuel pressure test was done by the dealer when they cleaned the throttle body. They said it was fine. I believe it could be a mixture of the sending unit and something electrical. Fuel hand puts out a false reading at times.

  • DESHAWN PORTER May 05, 2010

    I took it to the dealer and they changed the fuel filter and the relay. It is still doing the same. They say the converters are coming apart and the fuel pump is dropping. I may have the fuel sending unit changed and the converters again. What do you think?

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Check throttle position sensor, IAC Valve, and loose or leaky vacuum lines.

Hopefully fuel pump isn't bad.

Posted on May 06, 2010

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  • Master
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I would check the fuel pressure regulator. Make sure there is vacuum going to it. Also, there is a screen in the fuel pressure regulator, that screen could be clogged. I would also check the fuel pressure just to make sure the fuel pump isn't defective. 4.8 Liter or 5.3 Liter?

Posted on May 02, 2010

  • James Milzheimer
    James Milzheimer May 02, 2010

    I would check the fuel pressure regulator filter. On the electrical side, it maybe the camshaft or crankshaft sensor, but I would think that if there was a problem with one of those, it would set a code. It could also be the PCM itself, since there isn't a control module, the PCM fires the coils.

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