Originally Posted by draboo
This is a still a problem. I have cleaned every single connection on the batteries. I have not cleaned off the connection to the starter. Are there any other connections, like relay connections, that I should look at? Could this be a bad relay? I thought I had it licked a few months back, but it did it again when I had to get propane.
2002 Holiday Rambler Neptune PDQ ISB 275 hp Cummins engine.
As said there are some pre-relay and pre-solenoids along with a neutral and maybe a lockout relay, before the main starter solenoid and even if you're sure that you're hearing the main solenoid clicking, it could still not be pulling all the way in.
The most likely culprit is some dirty and/or loose connections along the way, stopping or limiting current flow. Cranking over after some tries, with the heat building up, is sort of an indication of this phenomenon.
My cure is to install some emergency circuitry for by-passing all this paraphernalia.
I have one large and one smaller momentary push button mounted in a plastic residential box and hidden back in the last bay, next to the engine on the passenger side.
The large heavy duty button wires across the secondary solenoid contacts and in essence, puts battery voltage directly on the starter's main solenoid, so if that doesn't work in a pinch, you might as well, replace the starter.
The smaller button puts voltage on the coil of this secondary solenoid and if it doesn't want to work, then replace this said solenoid. If it always works, then you need to start looking up range. Least ways, you can get it started and look into it later. Beats crawling around in a rainstorm and/or traffic, or calling for a mobile mechanic and/or a tow.
Funny thing and with a lot of these add on backup systems, once they're installed, the problem doesn't resurface. This tells me that the loosening, removing and otherwise with installing the extra wiring, cleaned up the connections. Now, that mine is done, it's staying in there and like the idea of having it, for a just in case and some peace of mind. Now, if all else fails, I just turn on the ignition and walk back to push one of these buttons. Being first sure that it's in neutral and the parking brake is on, of course.