distorted sounds from the engine.

I don't know  but there are a couple of things to try.   Try pressing the Doppler key a few times on the remote(right at the  bottom in middle) until it say Doppler  "off". 

And a feature reset Menu/Advanced/ reset engine/ feature reset. good luck

Worth inspecting the speaker.  While PS-2 5V speakers (16ohms) made by star were the ones that would deteriorate and have metal flaking, I have seen an occasional PS-2 3V 4 ohm speaker made by star do the same thing.   Also seen speakers that have been punctured or gathered lots of metal part on the layout.

Otherwise doing the factory reset Gregg stated.   G 

When the DCS remote says the battery is OK, it only means the charging circuit is working.  Have you tried leaving the engine on the track with the power on at 18volts for at least 15 minutes before shutting down and starting up the train?  MTH says distorted sounds are a typical of low battery charge.

I recently found a speaker with a whole load of tiny nails and screws that were obviously picked up from the layout!  I never saw so many things stuck to a speaker before.

ok tried what gregg said to do and looked for debris like john said and nada. It almost  sounds like the voice coil has failed or there is a tear. I have a spare coors light that is broken so i will swap out the speakers and see what happens. Before i do can it be dirty track that causes the problem?

Dirty track isn't a top suspect in garbled audio, though anything's possible.  I'd start with a speaker swap and work from there.

Okay. Man that is a strong magnet. The speakers are the same so i swapped them out. One thing i did notice as i was swapping them out was the hold down clamps were loose because of the screws being too long. Shorter screws and a speaker from the dead Coors light train and bammm. It has proper sound now. I did swap screws first and that didn't fix the problem. Glad it is running after taking it apart a few times. Now onto trouble shooting two of the cars.

Thanks for everyone's help. It is greatly appreciated. Love this forum for all the advice and knowledge.

Great news!  Thanks for the update and glad it's working.  I love that train.  Did you get it used, because that is weird about the screw length.

Merry Christmas!

I got both sets used from the same person. Only one set was ever ran. That is the broken set. The engine with the distorted sound and long screws was brand new.

GGG both speakers were the 3V 4Ohm speakers and both were showing signs of metal flaking around the magnet ring.

Throw the distorted one away, and I would get a new one for the working one that is starting to flake.  Sooner or later it will do the same.  It actually flakes internal also and gets around the coil.  G

GGG. Thanks for the suggestion. I will be ordering a 2 new speakers then. There is still a hint of distortion but it sounds 100% better than the original. As for the other engine I think it is going to need some major overhaul. I dont see anything wrong but it is dead. When i hit the read button after deleting the working engine, it says no engines found. When my friend had the trains, this one hit the floor pretty hard. I have unplugged everything and plugged it back in. I will dig into it further after the holidays. For now I am enjoying a new train around the ceiling.

When i hit the read button after deleting the working engine, it says no engines found.

That's because you're misunderstanding what the READ command actually does. The READ command only looks for engines that have already been added, and are in, the DCS Remote.

If it finds one on a powered track, it assigns it to the Active Engine List.

If one in the remote isn't found, it relegates it to the Inactive Engine List. The READ command does not add engines to the DCS Remote. For that, you must use the Add Engine menu command.

This and a whole lot more is all in MTH’s “The DCS Companion 3rd Edition", available for purchase  from many fine OGR advertisers and forum sponsors, or as an eBook or a printed book at MTH's web store!

If the flakes actually contact the coil windings and the frame, they can short and take out the amplifier or even the whole board.  GGG's advice is well founded.

Oh yeah John. I am going to order the speakers. 

Barry thanks, I realized after I typed that I had made a mistake. I had deleted theworking engine and tried to add the broken one. That's when I got the engine not found. I am putting your companion on my birthday wish list. 

okay took the non running one back apart. measured the voltage across the battery. 2.1v  I tried to add the engine again and it is still coming back saying no engine found. Mr. John I guess I have two engines for you lol. The only thing I can think of is the coupler was broken off when it hit the floor. maybe it shorted inside or the main board got damaged during the hit.

Try a recover engine, or did you try it conventionally?  G