Why would my 1997 honda odyssey's speedometer be jumping and the van be hesitating as if it was shifting wrong or misfiring?

SOURCE: I need radio code for honda odyssey 2004

my code was on the inside of the glove compartment

SOURCE: 2004 Honda Odyssey D Light Does Not Work, But Maintence Required

D problem is simply a lightbulb out on the cluster board.
Simple to remove the cluster and replace the bulb.

The Service Required light can be reset by
1) Turn they key to the II position

2) Turn the key to the off position, and push and hold in the odometer reset button

3) Turn they key back to the II position, while still holding the button.

4) After about 10-15 seconds, the light should go off.

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SOURCE: Our 2005 Honda Odyssey had a check engine light / misfire

When a cylinder mis-fires there is a reason. The dealer should have told you that. Most likely you have a fouled out spark plug. Which means you need new spark plugs and maybe wires. All this would be covered in a standard tune up. Once the bad spark plug is replaced, the computer will quit registering a mis-fire. Please give good ratings, they meen a lot to us.... Thank you

SOURCE: I have an 2002 Honda Odyssey. hesitates at 45-55mph

change fuel filter, check fuel flow and preasure.

SOURCE: 2002 Honda Odyssey TCS light comes on after driving approx 1 mile

There are several things that will turn the check engine light and TCS light on .If you get the code I can tell you exactly what the problem is . On your year i see transmission problems as well as EGR problems. If you go to any large auto parts store they will check the code for free or a very small fee.