mystery wire

Post by **246gts** » Fri Dec 09, 2005 4:33 pm

I have a green with thin red stripe wire"hanging about" in the engine compartment.
This wire comes out of the loom near front bulkhead, has a black plastic sleeve wire round it and an insulated female spade connector. It ends up on floor of engine compartment below the distributor.
Wiring diagram show only green / red as LH flashers front and rear but both of these (and all other lights) work without this wire being connected. Any ideas?

Post by **rayofleamington** » Fri Dec 09, 2005 5:06 pm

could it be for the the 'oil-filter-blocked' sensor?
or maybe the oil pressue sensor?
From memory these have wires 'green + something' on the later cars.

Post by **Packedup** » Fri Dec 09, 2005 6:29 pm

Oil ones are both green/ yellow from memory. Green/ red certainly sounds like indicator, could it be the wire failed and someone's run another one to the lights, leaving this one hanging around?

Post by **bigginger** » Fri Dec 09, 2005 6:47 pm

There's definitely a greed/red tracer going to the area of the headlights - I just broke it while pulling an engine out

Post by **Willie** » Fri Dec 09, 2005 7:45 pm

Another possibility is that your car originally had the relay used on the 948cc
cars which was mounted in the engine bay? If so this had a green/red wire
which mated with a green/blue lead to terminal 4. If your car has been mod-
ified to the later type flasher unit then it would have been redundant? In other
words what year is your car?

Post by **246gts** » Fri Dec 09, 2005 9:31 pm

Car is 1968 saloon but it has a "new" wiring loom which may well accommodate various options.
Dave

Post by **g_land** » Sat Dec 10, 2005 12:28 pm

even with the new looms, green/red is a indicator wire - just did mine last week

Post by **bmcecosse** » Tue Dec 13, 2005 7:44 pm

Do you have wires going to the oil pressure switch, and the oil filter blocked connections ?

Post by **Willie** » Tue Dec 13, 2005 8:22 pm

246GTS....In that case I think the wire in question was included in case your
model was using the earlier 948 type relay. (the oil filter warning light,if fitted
would be a Green/yellow lead,and also green/yellow on the oil pressure switch).

Post by **246gts** » Tue Dec 13, 2005 8:35 pm

I have come to the conclusion that the wire must be something to do with the oil filter / oil pressure switch. It ends up in that area and no other obvious use and everything else is working fine (today!).
Thanks for your help
Dave

Post by **Skeggysteve** » Tue Dec 13, 2005 10:39 pm

Must be late........

I (mis)read the thread title as:
'Mystery Wife'

Off to Specsavers!

Post by **chickenjohn** » Wed Dec 14, 2005 10:20 am

On both of my late cars (69 Traveller and 71 saloon) there is also a wire hanging around by the distributor that appears to have no function!!!

Oil filter light blocked is a possibillity as both cars also have the light on the speedo.

I might connect the wire to earth amd see if the extra orange light comes on!

Post by **bmcecosse** » Thu Dec 15, 2005 10:59 pm

It gives a cheery wee glow to the speedo!

Post by **Willie** » Fri Dec 16, 2005 8:32 am

CHICKEN....as I said above, if the wire was for the oil filter warning light
it should be Green with a Yellow trace.

Post by **RogerRust** » Fri Dec 23, 2005 9:00 pm

I've got a the same wire in my 71 traveller. I couldn't bring myself to cut it off - so just taped it up out of sight. A word of warning mine is a live (-ve) switched by the ignition. so don't short it out.

Post by **Cam** » Sat Dec 24, 2005 5:53 pm

That wire will read live when not under load as until it is earthed (usually by the switch) it will be showing the 12v from 'live' through the bulb and down the wire. If you earth it it will cause the bulb to illuminate.