red flashing light on the dash

Big lumps of metals and spanners.

Moderators: User administrators, Moderators

Locked
lukewoolfenden
Registered user
Posts: 0
Joined: 26 Jul 2010, 11:14

red flashing light on the dash

Post by lukewoolfenden »

Hi guys,

I have a 1984 1.9 petrol t25 van. I've just started stripping it down to rebuild it. I didnt drive it much but when I did I had a red flashing warning light on the dash just below the water temperature guage . it came and went and the temperature behaved as you would expect from a healthy engine. Can anyone shed any light on

What this red flashing light represents?
Why it's flashing?
And how to fix it?

Thanks very much, any help is much appreciated.

luke

User avatar
kevtherev
Registered user
Posts: 18832
Joined: 23 Oct 2005, 20:13
80-90 Mem No: 2264
Location: Country estate Wolverhampton Actually

Re: red flashing light on the dash

Post by kevtherev »

The red light will flash when you turn on the ignition... it's a self check.
it will flash for a second or two
AGG 2.0L 8V. (Golf GTi MkIII)

User avatar
peasant
Registered user
Posts: 417
Joined: 29 Apr 2007, 17:02
80-90 Mem No: 0
Location: Ireland, NW

Re: red flashing light on the dash

Post by peasant »

It also indicates a low coolant level
Ex German army Syncro for sale

User avatar
..lee..
Registered user
Posts: 736
Joined: 04 Jun 2006, 22:13
80-90 Mem No: 4478
Location: llanelli, s wales

Re: red flashing light on the dash

Post by ..lee.. »

quite often caused by the float in the cap sticking.

lukewoolfenden
Registered user
Posts: 0
Joined: 26 Jul 2010, 11:14

Re: red flashing light on the dash

Post by lukewoolfenden »

Ah briliant, thanks guys i'll check out the float when I dismantle it and replaice if needed.

thanks again

User avatar
tonytech
Registered user
Posts: 1194
Joined: 11 Oct 2005, 06:40
80-90 Mem No: 477
Location: Liverpool

Re: red flashing light on the dash

Post by tonytech »

..lee.. wrote:quite often caused by the float in the cap sticking.

There isnt a float.

There are two electrodes... and an electronic circuit.
When the water level is OK a small current can flow and keeps the light off.

T
There are 10 kinds of people. those who understand Binary and those who dont

User avatar
..lee..
Registered user
Posts: 736
Joined: 04 Jun 2006, 22:13
80-90 Mem No: 4478
Location: llanelli, s wales

Re: red flashing light on the dash

Post by ..lee.. »

so there is. mixing it up with the brake fluid warning lamp.

Locked