h-bo

The battery was dead after a long rest. I used jump cables from my BMW to the 993.

Lights turned on in the cabin of the 993. Keys in ignition, half turn, dashboard lights up, immobilizer disactivated. So far so good.

Full turn of the key... I hear cooling fan start, starter motor clicks... then all lights off, no life.

Have I blown a fuse? Anything I can do by myself at this point or do I need to call assistance? If so, what will they have to do?

Some further info: The battery is only a few years old. I have used the car a few months ago. A few week ago there was still enough juice for the cabin light but not starter motor. Basically I think the battery is ok.

The Eagle

Was the engine of your BMW running whilst doing this? The starter need a lot of juice.


~ The Eagle ~
---------------------
'96 Polar Silver/Black C4S, manual, litronics, LED's in the positioning lights, alu/leather shifter & handbrake,
silver face gauges with alu rings, sport seats, full leather interior, motor sound airbox, stainless door sills,
valve caps Porsche crested brushed alloy, front protection bar, with split rear grill and layered with Meguiar's NXT Tech Wax
__________________
'92 Carrera 2 (Sold)
'89 Carrera 3.2 (Sold)

Rialas

Bad connection on your battery or earth cable. Doubt it's a fuse. Clean all connections and let battery charge up properly. All should be ok.

h-bo

The engine was not running. The problem is that when the cables are connected now there is no light in the cabin or dashboard. However there was before I turned the key.

what would you do now in my place?

Rialas

This will happen if the battery cables need a clean and not making a good connection.
Remove cables and clean with sand paper. The sudden jolt of power has caused them to disconnect.

h-bo

Rialas: spot on.. Full marks! thank you so much....
I'm back on the road and no longer worried about selling the 997. This is all the car I will ever need!

Rialas

^ ^ your welcome.

+1

e9stibi

Selling the 997... I assume this is a typo and should be:

I'm back on the road and no longer worried about selling the 993

Very nice ride!

Chris L

Think he meant that he is selling his 997 and keeping the 993. And not worried about it.

Chris.

97_993C2

From his signature it looks like he has both so I am guessing he was worried about the reliability of the 993 if he sold his 997 and only had one Porsche.

Lorenfb

"Was the engine of your BMW running whilst doing this?"

Not a good idea! When the key is 'on' and the engine is running,
the complete 'donor' power source (full electrical system) is
exposed to damage. The most likely source of damage is a 'shorted'
starter motor or a 'shorted' battery on the no-start car, which will not
only damage the 'donor' battery but also the running car's alternator.

Bottom line: Just connect the jumper cables to the 'donor' car's
battery with the engine 'off' and always with just one cable
(the positive) connected to the battery and the negative cable always
connected to the chassis' (to avoid reversing the battery connections).

os993

nice h-bo! A road going 993 GT2. Very nice!

h-bo

exactly...

having only driven the 997 recently I had started to think it would be difficult going back to the 993. As I don't have enough time to drive either I have decided to sell the 997 and very happy to be able to enjoy the 993 some more.

AOW162435

Pictures of said 993 GT2. Please.

The only supercar I truly crave.


Andreas

vincer77

From my experience, you will seldom be able to start the drained car w/o the "donor" car engine running.