Dear Group,
I've read with interest various posts from the archives and used them to fix various parts of my '94 405 1.9 TD (it's the "Hunter" one). I've come up with a problem which perhaps has been encountered before but I can't spot it in the archives...
Recently I've started using the re-circ function on my heater to quickly heat up the car (Edinburgh in winter is a wee bit chilly). Unfortunatly it's started playing up. With the recirc button activated, there is no problem. When I switch it back to fresh air (recirc off) I get an irregular (and pretty loud) clicking noise coming from the LHS dashboard. Took the car in for a service yesterday and the £50 opinion of the auto electrician was that it was a problem with the solenoid which changes the airflow path, and that to further investigate was a "whole dashboard off" job and would be about 2 hours (at the aforementioned rate). I thought for that amount of money I should conduct further investigations on my own!
I'm reasonably handy about taking off fashias etc. and fairly technically minded - is this a job that I could do myself? Has anyone else encountered it? The recirc is not a necessary feature - to be honest I would happily just disable it. Is it possible to do this anywhere other than at the recirc switch? Could I simply cut a wire at the (marginally more accessible) ECU end?
He also told me that the ECU had been sitting in a pool of water (the gutter at either end of the bonnet vents were blocked) - but that drying it out and resealing had not fixed the problem.
Many thanks,
Ben Panter.
Summary: Engine Running, Recirc on - no noise. Engine Running, Recirc off - clicking noise.
PS: Had problems with newserver today, apologies if this arrives a few times.