D2 won't start or turn over - all electrical cuts out...help!

Meisterbr?wn

Well-known member
Jul 20, 2004
252
0
48
Longview, WA
Hi folks, here's the subject:
2000 Disco II 65k, fairly recent battery ('bout 2 months old, very well maintained).

The Disco would not start this morning after driving it to coffee. It started up normally at the house and drove in with no problems. Got coffee and came back out after approx. 5 minutes, tried to start it, but got nothing. And when I say nothing, I mean it. I turned they key and absolutely nothing happened. No dash lights, no dome lights, no clock, nada.

At first I thought the alarm had disabled something, so I tried arming and disarming, all I got was a half-hearted blink of the turn signal indicators on the insturment cluster and some clicking noises behind the climate control unit.

I checked the fuses - fine, battery connections - fine, alternator felt warm too. I got back in the cab and turned the key to the "Acc." setting and all the dash lights came up like normal, dome light worked, clock worked. Turned the key to start and everything cut out immediately.

I repeated this a few times and was able to get the dash lights on, but anytime I tried to start the car OR I put my foot on the brake pedal, it cut out completely.

I pushed that imobilizer/fuel thingy in the engine bay for good measure too.

Anyway, after calling for a ride, and noticing my brake lights were not functioning I decided I'd replace my brake light switch (what the hell). Yes I carry a spare, doesn't everyone???

I got that replaced and wouldn't you know it, she started right up. However, I was skeptical. Frankly, I didn't think my symptoms pointed to a brake light switch, but it was something to keep me busy.

We got it home, turned it off and tried to start it and got the same problems - instant cut-out. The brake light switch was not the answer - I never really thought it would be something so easy :(

Any ideas? I disconnected the battery a few minutes ago and was going to replace the batteries in my key fob, but I doubt that will do much. It seems like it could be a problem with my ignition or a general wiring problem. Any ideas are greatly appreciated!

Adrian
 

Meisterbr?wn

Well-known member
Jul 20, 2004
252
0
48
Longview, WA
Chris!

Well good news/bad news:

I checked the battery bolts/nuts/clamps on the positive and negative sides and they looked fine. I took the leads off and they appeared to be working as designed - nothing had sheared off and the nuts turned on the bolts. However, while I had them off, I decided to apply a liberal amount of Vaseline.

I hooked them back up and the Disco started right up! I turned it off, and tried again and it started a second time. I'm going to have lunch and let her decide if she's cured or not, but this looks good.

Prior to the "fix" I was having the same problems: clock, dash and dome lights would work, but as soon as I tried to start, turn the headlights on, depress the brake, set the alarm etc all electrical would go dead for a few seconds....strange.

I'll wait a bit and see what happens!
Adrian
 

hywy61

Well-known member
May 25, 2004
738
0
atlanta, ga
same problem here

Mine used to do this all the time. If i remove the positive lead and then immediately place it back on (or wait ten minutes -doesn't matter) it works no problem. I was baffled for a while. Replaced the MAF and the batteries in my remote and then the problem mysteriously disappeared for a while only to return.

I removed the anti-corrosion pad on the positive lead. In reality i think it probably has a short or just wasn't seated correctly. Hasn't done it in a while.
 
B

barefoot

Guest
my wifes montero did the exact same thing...i replaced the battery cables and connectors and all has been well for 4 mos...very strange though, cables and connectors looked ok...just a hair of corrosion. i tried cleaning first with a wire brush and all...but it would only return in a few weeks.
 

Meisterbr?wn

Well-known member
Jul 20, 2004
252
0
48
Longview, WA
Hey lads -
Well it's been a few days of starting and stopping (including a 2.5 day sleepover at the airport) and all seems to be well.

Sounds like something goofy with the leads. I'm going to keep an eye on them and maybe replace eventually.

Thanks everyone for the help!
Adrian