c/oil buzzer of doom

Post by **edoh** » 22 Sep 2008, 21:41

i read a while back that a sure fire way of removing the 'oil buzzer of doom' sound and light on the dash - was by removing the thinnest wire from the coil (having ensured that your van isn't really suffering from low oil pressure).

i've got 5 wires coming from the coil - 2 that arrive together and go the bottom left of the coil - and one that goes to the bottom right of the coil - all black (looking down on the coil). The 2 top wires - are green and green black -

see photos

any ideas which wire might be 'the buzzer' wire? how to find out?

any comments/suggestions appreciated -

any ideas what the different wires to the coil might be/ -
all useful learning -

[IMG:120:160]http://i270.photobucket.com/albums/jj89 ... eblack.jpg[/img]

[IMG:120:160]http://i270.photobucket.com/albums/jj89 ... tocoil.jpg[/img]

Post by **Ian Hulley** » 23 Sep 2008, 08:07

I believe you'll find it's the brown wire that passes down past the waterpump and to the sender next to the oil pump.

Ian.

Post by **ermie571** » 23 Sep 2008, 08:08

post deleted as it was utter nonsense...see below

sorry folks

Post by **Mocki** » 23 Sep 2008, 08:15

ermie571 wrote:u sure about removing a lead from the coil? Why would the signal be taken from there?

Blacks are earths.
Not sure what the greens do - other than provide a trigger signal for the engine running (its where my after market tachometer is wired to)

Em
x

BLACKS ARE LIVES
BROWNS ARE NEG
GREEN IS SIGNAL to rev counter, and dash, so it knows what revs to buz at!

removing signal only works if you dont have rev counter..........

replacing duff senders is the only fix if it isnt the wiring or oil pressure at fault

Post by **ghost123uk** » 23 Sep 2008, 08:19

Don't bodge it ( except to get you home ) one day you may regret it.

The senders are not dear and not difficult to replace.

The one by the water pump looks pretty inaccessible but you can get to it from underneath, I did mine a while back.

Post by **Ian Hulley** » 23 Sep 2008, 08:38

ghost123uk wrote:Don't bodge it ( except to get you home ) one day you may regret it.

The senders are not dear and not difficult to replace.

The one by the water pump looks pretty inaccessible but you can get to it from underneath, I did mine a while back.

IIRC you can't take it out without taking off the silencer and the heatshield, some have had a piece cut out of the shield to get to this sensor.

Ian

Post by **ghost123uk** » 23 Sep 2008, 08:46

Ian Hulley wrote:
ghost123uk wrote:Don't bodge it ( except to get you home ) one day you may regret it.

The senders are not dear and not difficult to replace.

The one by the water pump looks pretty inaccessible but you can get to it from underneath, I did mine a while back.

IIRC you can't take it out without taking off the silencer and the heatshield, some have had a piece cut out of the shield to get to this sensor.

Ian

Not so on my van Ian, was a bit tricky to get a spanner on but it did come out with no removals or mods.

Post by **edoh** » 23 Sep 2008, 08:52

as usual -
all really useful contributions -
thanks everyone -
will check wiring/sender before anything else -

Post by **ghost123uk** » 23 Sep 2008, 09:04

You can check the sender by the water pump by earthing the brown wire that goes to it. If the buzzer stops misbehaving it is that one at fault.

The other one ( on the head ) works the other way round and is "earthed" at rest and goes open circuit when running ( with good oil pressure of course ! )

Post by **Ian Hulley** » 23 Sep 2008, 09:40

ghost123uk wrote: You can check the sender by the water pump by earthing the brown wire that goes to it. If the buzzer stops misbehaving it is that one at fault.

Make sure there isn't a real fault with the system though .... otherwise it's like sticking your fingers in your ears

Ian.

Post by **edoh** » 23 Sep 2008, 21:11

folk singing - here i come!