URGENT - water light issue

[JC]

right - need urgent help before i torchh the golf - or blow the engine

following my recovery, and finding out that my stat and matrix had gone i have replaced them

but i still have an issue

when i fisrt start the engine, the water light goes out.

then after a while it starts flashing.

the level is ok.

the AA man says theres another sensor that can cuase this light to flash

HELP.

[Leon R]

Level sensor which is part of the expansion tank playing up?

[JC]

no, removed, bridged etc, still the same 

[JC]

further to my last,

I tunred the ignition to 2

all lights flash then the water one goes out.

stays out for about 30 seconds ( same as when engine is running ) then starts flashing again


so this fault is the same with or without engine running 

are the 3 sensors on the end of the block

i have red / yellow, blue / white and green/ red wires going to 3 sensors, all round the big plastic flange.

help please, I dont fancy blowing me engine up 

[Conker]

I think its the red/yellow sensor thats your dash temp gauge. Swap that wire round onto the other sensors to see if the fault clears up??  Perhaps the overheating baked the sensor?

[JC]

cheers dave, fooking thing, thank fook i got a spare lump to nick sensors off   

[rubjonny]

is it a pre-90, if so the light is controleld by the coolant light control relay, #53 clipped above the fusebox.  pop it out and see if that sorts it!

[JC]

erm, wouldnt know, its got the hazard light switch on the steering column. 

[rubjonny]

90spec then, gonna be down to the sensor, wire or the clocks!  as conker says chuck the red/yel wire to one o the other 2 sensors

[JC]

cheers both,

 job for tomorrow then ,

then i can use one  fromthe spare donk,

then finally bleed the system properly,

check the stat and matrix for leaks,

rebuild the interior,

fit the pas pump back on,

and then get sponsorship from savlon, i am cut to shreds