Question about 1997 Honda Accord

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Tachometer is working erratically

The tach will start bouncing up and down. When it does the vehicle will sirge or lose some power. It is normall at higher speeds

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  • jtl5 Dec 17, 2008

    The check engine light is on. I have been told that there is a sensor on or in the transmission that could cause this as well.

  • twalsh126 Dec 27, 2008

    My 1997 Honda Accord is having the same issues with the tachometer working erratically.

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  • 57 Answers

Clean throttle body housing the air by pass ports, sound like this is clogged causing engine to surge up and down trying to maintain proper idle.  Local should not charge more than one hour labor to address.  But very doable for a handy DIYer

Posted on Dec 17, 2008

  • Scott Resnick Dec 17, 2008

    There are many sensor. Start with the basics, clean the throttle body. get a can of carb or throttle body cleaner, remove clamps on throttle body and rubber hose, spray clean in throttle body, and small ports, remove vacuum line, one at a time, and spray into the ports not to the vacuum hoses. wipe away the residue, start engine and warm, vehicle may run rough until it burns thru the cleaner.

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Is there a fuse for the tachometer?


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Please note: I would be very cautious about connecting aftermarket equipment into your computer input or output circuits. These things have been known to cause all kinds of drivability problems as well as make it impossible to pass an emissions test (if it is required where you live).

I have personally seen aftermarket add-on equipment cause everything from engine cylinder misfires to transmission shifting problems to engine stalling and no-starts. I do not recommend using any at all. However, there are usually no problems created by "stand alone" accessories that are powered directly from the battery and do not require splicing into any of the computer circuits.

My professional recommendation on this is that if you think you need a tachometer to operate your vehicle, or you just like the looks of a tachometer bouncing up and down, then you would be money and headaches ahead to buy a vehicle that is equipped with a tachometer from the manufacturer - you may be opening a can of worms that you do not want.

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If it does not buzz, crank the engine for a few more seconds until you see the oil pressure go up. If it still does not have fuel then the pump or its wiriing may be bad.

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