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roy4matra
YaBB God
Posts: 1199
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« Reply #4 on: December 06, 2007, 08:44:14 pm » |
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When fault happens no power to electrical system. Fault happened when returning home tonight,battery light came on, revs died engine stopped lights went out. Turn ignition off turn back on - nothing (DEAD). Turn back on again engine starts battery light goes out.
Please check or confirm this first please Tony: When it goes 'dead' do you still get the immobiliser warning light flashing? If you do, then check the ignition relay. If this fails, then you lose all the ignition circuits. If the immobiliser warning light has gone out as well, then I would suspect a total loss of electrics. As Anders has pointed out, I would look for a poor or loose main connection first if you are losing all your electrical power, so check both positive and negative battery connections, and earths to chassis. Don't forget the engine to chassis earth cable. Also check starter end of positive battery cable. If you have a meter, you can check for high resistances - an earth lead might be secure but if the connection is dirty, you could still have a high resistance. Earth resistance should be no more than 0.25 ohm. The only other thing if you are losing all power is you have a fault battery, possibly as it is shorting out owing to shifting silt at the bottom. If the ignition relay is suspect, the easiest way to check it out is to simply swop for a known good one and try again. If the relay is dropping out but the relay itself is good, look for poor connections to the operating side of the relay (commonly terminals 85 and 86 for DIN spec or 1 and 2 on a Renault relay!) Roy
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« Last Edit: December 06, 2007, 08:46:56 pm by roy4matra »
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Jurzi
Newbie
Posts: 9
I'm a llama!
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« Reply #13 on: May 25, 2013, 12:20:11 am » |
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I wanted to post my experience. The reason I did a grand repair to to my third in a row Espace (1990-1993) was that coolant water finally sprayed through the head gasket and temps raised to red. Thus I renewed at the same time: head gasket, water pump, timing belt, radiator and checked the heater matrix, which turned out to be OK. So I had to take off almost everything in motor and dashboard compartments. Finally, as I had finished to put back the motor parts I tried to check that motor runs OK, before putting back dashboard.
But.... there was no start and no power at all when I tried to turn the ignition key...DEAD. I checked short circuits and open-circuits for two days and asked my friends who are experts in electrical things. Finally, it turned out that the negative connection to battery was never well put into place thus no contact was between the battery and the pole. But to be honest, this lead is a tricky one which must be "screwed" deep and well around the pole.
So.... quite often you must check first things first!! Like you guys here always guide to do... Usually I always try to follow this rule as I know that quite often the problem is rather simple or easy, if you careful and accurate enough...
EDIT:
Everything works now fine except that some grease/oil is still burning in the motor compartment (exhaust pipe). This is such a fun car to drive&own....
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« Last Edit: May 27, 2013, 10:07:40 am by Jurzi »
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