RE: [Paddlewise] Toyota Problems

From: Paul Hayward <pdh_at_mmcl.co.nz>
Date: Tue, 13 Apr 2010 20:18:10 +1200
> cut all the power from batteries and generator, as it did on old
cars/motorbikes.

Tord - surely that is exaggeration. I doubt there's been a car built in your
lifetime where this was true. They all had parking lights... and most had
other functions that kept working with the ignition key removed - cigarette
lighters, engine & turbo cooling fans (my '78 SAAB), burglar alarms, clocks,
etc - quite a long list. 

So historically, we haven't needed to kill all power in the vehicle - just
stop the engine; which we can do by killing the power to the sparkplugs or
(if it's a diesel) shutting off the fuel supply. I would love to hear from
anybody with a vehicle (old or new) which doesn't do one or both of those
when you turn off the ignition switch !

If the engine is stopped, it shouldn't greatly matter if the gearbox or
accelerator is under computer control or completely insane - you can deal
with those issues later.

Most cars will retain enough 'power assist' to steer & brake to a safe halt
when the engine shuts down. Don't assume that you have much extra time
however, eg: to wend your way down a long grade to a pull-off on the flat...

Last weekend, travelling with a group of friends (all with kayaks on the
roof) a friend had his main 'fan' belt break when we were 100 km from
anywhere. We called upon one of the 4x4s in the group to give him a short
tow - to a safe spot for the car. Because the fan belt drives all the engine
accessories (as in many cars), he very soon lost power brakes and steering
which caused him some excitement - as he claimed to have no effective brakes
at all. (He's a very strong guy.) Luckily, the handbrake worked and the 4x4
escaped unscathed ;-)

This is worth keeping in mind - you might even want to test your car's
ability to retain some power-assistance (when the engine stops) to brake and
to steer. Just be careful that the testing session doesn't go pear shaped
;-)

Best Regards
Paul Hayward, Auckland, New Zealand
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Received on Tue Apr 13 2010 - 01:18:29 PDT

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