Temp idiot light, getting worse

[Huw Powell]

>   I have an question about the idiot light.  I am still waiting for the
> Bently to arrive.  When I bought the car (87 4000 Quattro), it would
> occasionally blink on heavy load (foot to the floorboards), but as the
> last month has progressed, it has gotten worse.
>   Today, on the way to work, it pretty much stayed on consistently.
> The temp gauge showed normal operating temp.  Does anyone know which of
> the apparant 3 sensors this is.  I checked the coolan level, it is good,
> and the engine doesn't act like it is overheating.
>   The three sensors I am refering to are the two stuck on the neck of
> the head were the radiator hose enters (top side and bottom side of the
> neck), or the coolant level sensors in the overflow tank.

i believe the top sender in the heck is for the gauge and the overtemp
warning.  the bottom sender is for the CIS-E.

have you tried disconnecting the level sender in the expansion tank?  it
also will set off the flashing coolant indicator, and might be
bad/stuck.

--
Huw Powell

http://www.humanspeakers.com/

http://www.humanthoughts.org/