Why does my 1999 honda civic vibrates when i go above 60mph

See pages 77, 78 and 79 in the owners manual from this link.

http://www.manualowl.com/am/Honda/1999-Civic/Manual/6970

dose anyone known were the diagnostic plus are on 1999 1800 honda civic

Have the tire checked to see if it is out of round,maybe move it to the right rear to see if it changes,also,have the front end alignment checked.

If you feel like the whole car is vibrating a bit as well, it is defiantly a tire alignment problem. Take into the shop you had the tires aligned last and they should fix it free of charge.

Good luck

If it's coming from under the car, the most common problem is the heat shields on the exhaust system

Each code is specific to the radio, you have to disable the anti-theft feature before removing the battery. The code may be listed in your owner's manual, if not, call dealer for more info

call honda they can get it for you by ur vn

If its a carburretor engine you'll get it when u remove the carburretor.

The brake discs may be slightly warped.

Hi,

To my knowledge, the PCV valve for a 1999 Honda Civic fits into a socket on the block and a tube leads from a nipple on the PCV valve to the intake manifold. As posted here, "Chiltons repair manual ... says on the passenger side near the top of the crank case leading to the air intake. In other words open your hood look down where it says "HONDA" right above the spark plug wires come out and to the distributor cap. Look at the letter "H" then look above the about 1.5 inches then left about 4-5 inches you will see a black hose with a clamp on it curving to the right to a smaller metal tube leading to the black box about (8-9 inches) where your air filter goes to. That's where it's >suppose< to be,up top near the letter "H"."

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

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