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    janasia8's Avatar
    janasia8 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Sep 3, 2012, 12:01 PM
    Reduced engine power
    I have a 2003 Chevy Tahoe 4wheel drive it has been stalling on me I put a new alternator thinking that was the reason bcus it was already no good but the problem got worse n now it says reduced engine power n won't go faster than 30miles
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Sep 3, 2012, 12:40 PM
    . Replace the fuel filter.

    . Install the same ACDelco spark plugs that originally came in the truck, if they have not been changed in 50,000 miles.

    . Check for codes.
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