morr wrote:If the level sensor in your coolant bottle if faulty, or it's associated wiring (and relay on some models), or if you are low on coolant the led will flash, and on certain years it will also cause the gauge to go to max.
mmm interesting, thanks the low coolant light didn't flash even with the plug disconnected with old gauge and still does not will 'new gauge'
I wonder if i pull the relay what happens, test for tomorrow.
I tested a spare sensor in freshly boiled water ( probably 90 degrees once The sensor had taken time to warm up) and got about 165 Ohms so this gives me a rough idea of what the resistance should be so I can play with a fixed resistance.
P1100542 by
Paul_Barr, on Flickr
I then conncted the sensor dierect to gauge ( bypassing all the other level sensor wiring as the wire is cut just before dash) the gauge rose to about 3/4, not quite so high but may indicate the level sensor is part of the problem.
So it got me thinking I wonder if they are adjustable....
hello what are these holes with notches ??
P1100543 by
Paul_Barr, on Flickr
So out with the drill and drill and punch out rivets ( need a steady hand they are tiny)
Hard to see but it does look like they are adjustable, probably why every bodies gauges are different.
Out of time tonight I look more tomorrow
P1100544 by
Paul_Barr, on Flickr