Hello! Welcome to the site! Thanks for coming! I'm Ron Z. I'm here to provide as much info and insight as I can, to best answer your question.
According to the Honda Normal Service Schedule, the Timing Belt should be replaced at intervals of every 105,000 miles. When replacing the Belt, it is recommended that the Water Pump be replaced at that time. Although the Water Pumps are fairly solid on these engines, this is a "better safe than sorry" repair. If the pump is to let go after the belt repalcement, the Coolant will damage the belt, and you'll need to re-pay for the Timing Belt job all over again. Having the Timing Belt replaced at the recommended intervals is a very good preventative maintenance idea. If this belt is ro break while the engine is "under load" (highway speeds, uphill, etc) there is a strong chance that internal engine damage can be done. As for the price- the Belt sells for around $50 and the Labor Time Guide calls for 2.7 hours to complete the job. If you do opt for the Water Pump replacement at this time, it sells for around $105 and you'll need to add another half-hour or so to the Labor Time. Labor rates vary from shop to shop, so what you pay for labor will effect the botXXXXX XXXXXne. For a job of this type, a "fair" labor rate can by anywhere from $85-$125 per hour. Shop around, and find a reputable shop that warranty their parts and labor.
As for the Coolant and Transmission
fluid- the Coolant is recommended to be replaced at intervals of every 45,000 miles and the Transmission at every 60,000. So if these haven't been done yet, it may be a very good idea. Keep in mind, the correct transmission fluid is very importnant! Use of any other fluid or "universal" fluid will harm the system!
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