Hi, all.

I recently took my boat out of storage to run on a hose. It started up fine and idled without issue for several minutes. I went to rev the engine out of gear at which point, at higher RPM, the prop started to spin and a rather alarming grinding sound came from the transmission, or so I believe. Once returned to idle, it wasn’t an issue. I couldn’t get the most accurate read on fluid level, but I’d like some advice on what might cause this and steps on out to drain existing fluid to replace. I’m not quite sure which model of transmission I have, but it looks like that model year can take three different types of oil. Which do you suggest? I’m hoping this is something as simple as low fluid level, but it may be more than this.

As a fairly new Malibu owner, thank you in advance your guidance!

If you have disc brakes, the wheels will probably not spin freely.  Disc brakes are designed to always drag slightly, whereas drum brakes should release completely.

Having the same auto bilge issue without 23 Lsv. In the dealership now. Hopefully an easy fix. 

35 minutes ago, idiomkrone said:

Appreciate the info in this thread.  Think I have the same issue.  Thanks!

Gage

This is a really old thread.  You may find that your best bet is to remove the MMDC, open it up, and resolder the pins on the main connectors where they meet the circuit board.  You may be able to see visible cracks in the solder.  Put it back together and try it.

If no joy, everyone else here will simultaneously direct you to the Ron Tanis TRD solution of reasonably priced new gauges and controller.

I just completed this MDC delete conversion on my parents 2001 Sanger dxII. It was a bit more involved than this one because it has the 3 5” gauges and we converted to 6 individual gauges (cheaper) and I had to custom make a gauge panel but overall went well! Reach out if you need input!