Question about GMC C2500

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My fuel filter will not prime on a 6.2 diesel what could I have done wrong

Tried for hours it will not prime over and over in the manual they say to disconnect the fuel injector pump silinoid were is that at

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  • mannalight Oct 26, 2008

    thanks for the help all along it was the pump now it wont start how do u bleed injectors thanks for help

  • Anonymous Mar 20, 2014

    Diesel in oil. Replaced priming pump and change oil and filter. Ran for 6 hours and still putting fuel in the oil

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Hi from the uk if your vehicle is equiped with a manual fuel primer device? and unable to prime f i pump ? no fuel at f i p are you trying to prime with the ignition on ? as the fuel shut off solenoid that is fitted to f i p is elec/ignition on activated so fuel can then be primed into the f i p and then to assist starting just loosen a couple of injectors delivery pipes while turning engine over then retighten the stop solenoid is liken to a temp sender unit ? and is normally located at the top of f i p adjacent to fuel inj pipe connections solenoid has a wire attached to activate fuel valve in solenoid allowing fuel flow and ign off shuts fuel supply if you operate on/off with key ign you can hear click if working? but better test is by volt meter to test if ign supply ok? if you have merely ran out of fuel or just changed filter ? then provided no air leaks on supply fro tank the above should get you started ? come back if you have more info/update? hope and wish you good luck

Posted on Oct 26, 2008

  • silver top Oct 26, 2008

    thanks for update it was the pump ? assume fuel inj pump ? when you have pumped/primed the fuel up to f i p slacken fuel injector pipes at injectors and turn engine over then when fuel begins to show at injectors ? re tighten then try starting providing pump is good and timed it should start

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