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Darrell 4/6/2010
2000 GMC K3500 Sierra SLE 8 Cyl 7.4L - Engine
Engine Studders and Hesitates at low speeds
Engine studders while driving at idle speed. There is a small coolant leak in front left corner of manifold. Engine starts promptly when cold but after running awhile, hard to start.

any help would be appreicated, thanks

Darrell R. Lee
1 Answer
  • Bobby
    Bobby 4/6/2010
    Is this a diesel? If it is check fuel pressure. If it is gas start checking engine controls, map sensor, temps sensor crank sensor etc.

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