Re: 1990 240SX Won't Start

Jim Yanik wrote:

> maybe your have a bad clutch lockout switch,that prevents
> cranking when the clutch is not pressed in.

Or even a faulty ignition switch or wiring, in the "start"
position, not applying enough current to the solenoid.

> you should be able to measure 12V at the solenoid terminal
> when you try to crank the motor.
> you should be able to jumper 12V to that terminal and crank
> your motor.

That's a good test.

> If you have 12V at the solenoid terminal and the starter still
> does not crank,then there's a solenoid/starter problem. Maybe
> a bad ground side wire.

I don't know what the voltage should be between the starter
motor body and the battery earth terminal while trying to crank
the engine, but I'd be suspicious about a bad earth connection
if it was more than about 2 volts.

Larry mentioned that the starter had been tested, but we don't
know how thoroughly.  I wonder if the brushes are worn.

John