Re: main relay
Reply #6 –
Yahoo Message Number: 112506
Both of the problems in this thread could be caused by the ignition solenoid. Both problems have happened to me and it was the ignition solenoid.
For those where the engine won't start, check the front run board fuse panel fuses in the middle row with the key in the on position. These are powered by the ignition solenoid and if they aren't lit the solenoid is not switching on. Another check, and easier, is to see if your transmission indicator lights are coming on as they are powered by one of those fuses. This can be caused by a faulty solenoid or a bad ground wire to the solenoid. There is also a start relay on the transmission VIM that may be bad.
If the engine does not shut down, again check those fuses. With the key off and the engine running those fuses should not be lit. If they are, the solenoid stuck on.
One other possibility, probably of many possibilities, for the starting problem is the start solenoid. On my 2000 Magna there is a solenoid at the rear of the coach just below the passenger side tail lights. You have to lay on the ground and look up to see it. There is also a 30 amp inline fuse between that solenoid and the starter. That fuse is immediately above the solenoid and there have been reports of corrosion on the fuse blades causing similar starting problems.
pete
2000 40' Magna CAT C-10, #5892