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    Throttle1982's Avatar
    Throttle1982 Posts: 41, Reputation: 1
    Junior Member
    		  
    #1

    Feb 23, 2009, 12:14 PM
    1989 Pontiac 6000 2.8 MPFI stalls in gear
    So I've got an 1989 Pontiac 6000 with a 2.8 MPFI that starts up and idles good, but when you put it in gear it stumbles a bit, then once you hit the gas it stalls out. You can drive it if you are REALLY slow on pressing on the gas.
    Any ideas?
    this8384's Avatar
    this8384 Posts: 4,564, Reputation: 485
    Ultra Member
    		  
    #2

    Feb 23, 2009, 12:53 PM

    Check for codes stored in the computer. Also check for vacuum leaks which could be causing it to stall under load.
    Throttle1982's Avatar
    Throttle1982 Posts: 41, Reputation: 1
    Junior Member
    		  
    #3

    Feb 23, 2009, 01:08 PM

    No codes given by the computer. Checked for vacume leaks, but no find.
    this8384's Avatar
    this8384 Posts: 4,564, Reputation: 485
    Ultra Member
    		  
    #4

    Feb 23, 2009, 01:27 PM

    Check fuel pressure. How old are the ignition parts?
    Throttle1982's Avatar
    Throttle1982 Posts: 41, Reputation: 1
    Junior Member
    		  
    #5

    Feb 23, 2009, 01:50 PM

    Plugs and wires recently replaced. Fuel filter replaced last weekend.
    this8384's Avatar
    this8384 Posts: 4,564, Reputation: 485
    Ultra Member
    		  
    #6

    Feb 23, 2009, 02:05 PM

    Check the pressure; the pump could be getting weak and not responding appropriately when you step on the accelerator.
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