The car sometimes won't start - it clicks and the lights dim, but it don't turn over.
When a starter motor gets old, it requires a higher voltage to get it going.
The wonderful aged GM wiring means that only about 7v of the 12v available gets to the motor. Normally that is enough but for an aging motor it is not.
There are lots of imaginative fixes which involve rewiring. However, the only easy option is to install a solenoid in the starter motor wiring.
However in an emergency you can use a piece of thick wire (covered of course) to bypass the starter circuit. With the ignition in the on position, attach the wire first to the blue wired contact on the starter motor (see image) and then to the live point on the battery.
Works a treat, but remember to ensure that the car is in PARK, as the inhibitor is bypassed.
Prestige Vauxhall fit solenoid, and there are instructions for how to do so in the files section of the Yahoo group.
