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  #1  
Old 03-28-2011, 09:13 AM
otero30 otero30 is offline
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Default Tachometer

My tachometer bounces between 2000 and 3000 rpm, any ideas?
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Old 03-28-2011, 09:24 AM
terryduanemiller terryduanemiller is offline
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Default Re: Tachometer

rpm surges? or faulty gauge?
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Old 03-28-2011, 10:34 AM
otero30 otero30 is offline
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Default Re: Tachometer

what could cause powere surges
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Old 05-20-2011, 02:16 PM
otero30 otero30 is offline
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Default Re: Tachometer

bad ignition coil
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Old 05-20-2011, 02:24 PM
turbographx turbographx is offline
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Default Re: Tachometer

bad MAF, IAT, Cold start valve, bad tach, bad ignition components.
Could be a lot of things.
First things first....
When the tach jumps do you "Hear" the engine rpms change, or just see the needle moving?
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