Question about 1999 Volvo S70

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Car chugs what could that be - 1999 Volvo S70

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Many things... When was last "healthy" tune up? Plugs, wires, ALL filters especially fuel filter??? I would start there. Also might want to run a good fuel system cleaner like SeaFoan, STP etc through with next tankful of fuel

Posted on Feb 27, 2011

  • dwhite_1122 Mar 02, 2011

    I already tried those suggestions, but I did some research and I believe it is the electric throttle system.

  • Mical Caterina
    Mical Caterina Mar 02, 2011

    then have an OBII scan done and address what fault codes indicate. It could be TPS, MAF or MAP sensors.

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