Re: 405 A/C problems, part 2

Adam_Rodnitzky@ACML.COM
Mon, 17 May 1999 09:53:31 -0400

This is certainly an odd problem, but I will hazard a guess here (by the way,
that is all this is, but it seems that this idea makes sense). Given that all
US-market 405s have an automatic climate control system, is it possible that the
cabin temperature sensor is bad? Perhaps it is sending the wrong signal to the
climate control ECU which is then opening the heater flap, if even only
slightly? Could be a possibility, anyone want to back up or disprove this
theory?

Adam
'89 405DL (with great A/C)

It's looking a bit different now. All last week, I ran the A/C as much as
possible, and 90% of the time it froze me out! I can live with that. But
then it ocurred to me that the weather was rather average spring-like
temperatures, probably never more than the low 60s. Over this weekend,
another thousand miles on the odo. Saturday, outside temps in the low
70s, no A/C except for the first mile. Sunday, temps in the low 80s, and
tons of real, regulation A/C for the first four hours of driving, then
just street air for the remaining four hours (outside temps probably
worked their way down below 70 by the time I got home).

So - I can usually have air conditioning on cool days, and may or may not
have air conditioning on warmer days.

Any ideas, what the heck is going on?