'can I replace just the motor for the blower if that is the cause of the
hi speed not to work or just leave it alone or is there somoething else
I can check to see like the capicitor (and how to check it)'

Yes..you can change out the motor only. You dont have to replace the
blower wheel unless it is out of balance . If the high speed for the
motor works but doesnt come up to speed...there is a good chance that a
new Capacitor would solve it. If high speed doesnt work at all, then its
the high speed winding thats gone., in which case youd have to replace
the motor.

'how do you tell if the inducer isn't working properly it does make a
little noisy sound--not quite right'

That particular Rheem furnace has somewhat noisy Inducers even right
from the factory. If it isnt working right...the amps usually go up on
it / it vibrates excessively / the motor can be hotter than normal /
and it can make high pitched noises indicating (usually) that the
bearings are worn and going out. Make sure the mounting nuts havent
worked loose. Oil it if you can.

'Is there anything else to check on the condensate trap and/or the port
where the tube from the condensate trap goes to on the main unit. What
should inside the port look like when one takes off the tube.'

Pull off all the tubes and make sure theres no debris at each nipple.
Also, blow thru each tube to be sure theres no obstructions. The port
should be wide open when you take the tubes off. BLow thru the
condensate trap to remove any debris that accumulated, then, refill the
trap with water before operating the furnace.

'The furnace is 12 years old and for the most part has worked fairly
well until recently, but we have had a lot of remodling going on and I
would like to get at least another year or 2 out of this furnace before
I replace it with a new one.
Thanks'

There were alot of problems with these RHeem first generation 90 plus
furnaces ; have it checked and cleaned every year. Heat exchangers have
been a big problem in the 1980's-1990's. Have it looked at closely and
have a carbon monoxide detector in your living area --- NightHawk at
Menards gives you a ppm digital readout . Cost is $40