Auto electrician

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madcalc
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Auto electrician

Postby madcalc » Mon Apr 18, 2011 5:14 pm

Does ANYONE know a good auto electrician that knows Discoverys??
3 sparkys later and I'm still none the wiser whats wrong with my motor! :cry:
What did people do to repair cars before computers were invented to diagnose them? :roll:
If I can't fix it, I bodge it!

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davew
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Postby davew » Mon Apr 18, 2011 6:49 pm

Maddison 4x4 will be able to sort it and I'm pretty sure Matthew would be able to too.

If you're really stuck I can sort it for you but as Pam will testify, I've got plenty on at the moment with my own fleet of vehicles :)

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Matthews
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Postby Matthews » Mon Apr 18, 2011 7:41 pm

We did it the old fashioned way with patience and a multimeter.
Matthew

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madcalc
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Postby madcalc » Mon Apr 18, 2011 9:19 pm

Well my patience has run out and my multi-meter probably doesn't work properly after being thrown so many times :roll:
Thats why I'm having to fork out cash to get it fixed:evil:
If I can't fix it, I bodge it!

TwoSheds
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Postby TwoSheds » Tue Apr 19, 2011 4:48 am

what are the symptoms? Perhaps somebody on here has suffered it before and can offer some advice?

nicks90
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Postby nicks90 » Tue Apr 19, 2011 7:34 am

throw your multimeter in the bin and use a test lamp.
if i had used a small test lamp, i would have fixed my whacky lighting issues in about 30 minutes flat. Instead it took me hours to find that my column switch had a good circuit until you put a load on it (test lamp) and then it tripped out. The multimeter didnt cause the switch to trip so i thought it was fine and ended up rewiring most of the lighting circuit in a hopeless attempt at brute forcing a fix through blind panic and guesswork,

Nick
Bugger!
Another bloody dent...

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Matthews
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Postby Matthews » Tue Apr 19, 2011 7:44 am

That's why you test the circuits under load Nick , I also use a test lamp but in conjunction with MM and yes LR wiring is a pain.
Matthew

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davew
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Postby davew » Tue Apr 19, 2011 8:46 am

From conversations I've had with Dave and Matthew there are three different problems. It may be there is some connection between them but it's unlikely.

The first is a classic spider fault, the voltage to the stop solenoid is at around 8v. Almost certainly caused by a faulty spider unit, best fix is to bypass the spider unit altogether for that circuit. That can be done from the multiplug at the left hand side of the driver's footwell from what I remember. That's assuming it's not an EDC 300TDi, as the EDC version and the EGR versions use a slightly different arrangement.

The second is the battery discharging which could be a number of things. First step would be to check it's actually charging. If it is then turn everything off and measure the current flow from the battery. If it's anything significant (more than 1A) start pulling fuses until it drops to narrow down the "leak".

The third is an intermittent brake light fault which shouldn't be hard to either find or bypass.

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davew
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Postby davew » Thu Apr 21, 2011 9:11 am

Dave's Disco is currently in residence at MKS Classics (Matthew's garage). It seems it's a later version than the ever unreliable spider and is the even more unreliable electronic 300TDi.

Current diagnosis is that the ECU has died, has anyone got a spare 300TDi mechanical injector pump so it can be "downgraded" ?

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tecnick
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Postby tecnick » Thu Apr 21, 2011 9:27 am

Matthew rang me today, mech pump sorted we think. Have one in stock!
Cheers Nick
If it ain't broke, I'd be bloody suprised.

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Matthews
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Postby Matthews » Thu Apr 21, 2011 6:09 pm

Now fixed running EDC system, starts , stops, brake lights work and alternator charges, bit of (lot of) ingenious rewiring bypassed faulty parts of ECU and alarm module.
PLEASE nobody buy a EDC Disco if you are looking for a new motor they are a f*****g awful and stupidly complicated system.

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tecnick
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Postby tecnick » Thu Apr 21, 2011 7:27 pm

I'll keep it then :lol:
Well done Matt, get ya wallet out Dave :!:

Cheers Nick
If it ain't broke, I'd be bloody suprised.

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madcalc
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Postby madcalc » Thu Apr 21, 2011 7:46 pm

Seems mine is a weirdo!! and an auto! everything is connected to the EDC including the dashboard instrumentation!
And you all thought I was whining for the sake of it :roll:
If I can't fix it, I bodge it!


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