Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - Speedometer jumps/bounces and car trembles/shakes
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Old 12-04-2012, 12:31 AM   #16
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Join Date: Mar 2012
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Location: Corona, CA
What I Drive: 2002 Red Focus SE 4door

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Problem solved

I think u might be having a problem with ur Mass Air Flow sensor aka MAF sensor my 94 tbird had the same problem but the only diff was that the rpm and the Speedo would jump I bought 2 cats new wires spark plugs and coil pack and all to find out that the maf was the problem wich was worth on 8 buckaroos at AutoZone vs 400 for the cats and stuff
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