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surging


patrari
01-07-2008, 08:22 PM
Hello my truck is a 93 gmc 1ton 4x4 7.4 auto 4l80 when driving any speed any gear it will surge just some time almost like the lock up converter kicks in and out for a split second. The rpm's jump just slightly I can not figure it out I am replacing the fuel pump today and the tps sensor anybody else had somthing like this ?? Thanks this is my first forum

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