Re: '88 505 GLS: heater/defrost fan

Brian Holm (peugeots@plainfield.bypass.com)
Mon, 17 May 1999 13:31:43 -0400

John

With the key in ACC or ON, engine on or off, pushing the ECO button should
disengage the electric fan behind the grill, and disengage the compressor
clutch. Releasing the eco button should do the opposite.

I suggest you try running with the ECO button disengaged to see if the
engine overheats (that is, temp needle hits the red zone, and or overheat
warning light comes on with needle well up).

The zdjl engine has the hokey viscous clutch engine cooling fan, with which
it is very hard to tell if it is working, unlike with the magnetic fan on
n9t, xn6 and most diesels. If that fan does not move air when hot, you
might need the condenser fan to keep the engine cool in traffic.

Rob, re your n9t temp gauge readings--IMO you are probably overcooling your
engine, unless your gauge is defective. Normal, and recommended
temperature reading is above the middle of the gauge.
Your thermostat should be 82C (at least), which should keep the needle
above the middle where it will make the engine run best and cleanest.
Otherwise I think your advice to John is excellent.

Brian Holm

At 04:54 PM 5/14/1999 -0700, John Gibb wrote:
>Hi Rob,
>
>thanks 4 the quick reply; is your ability to get HEAT and DEFROST tied at
>all to the 'new A/C compressor and a fresh charge of R12'? That's my
>current top priority.
>
>Can you turn on your fan withOUT the engine running; if so how? (I just
>want to test the fan itself)
>
>Without special equipment, can I myself test whether/not i need a new
>compressor or R12 charge? (or do you think my symptoms have already
>confirmed the need for one or both?)
>
>thanks
>
>PS: my vehicle is NOT a turbo...
>
>-john
>
>John Gibb
>jgibb1@earthlink.net
>
>-----
>From: <Rgvivace@aol.com>
>To: <jgibb1@earthlink.net>
>Cc: <peugeot@padui.org>
>Sent: Friday, May 14, 1999 4:29 PM
>Subject: Re: '88 505 GLS: heater/defrost fan
>
>
>> In a message dated 99-05-14, you write:
>>
>> I can get a FAINT cool breeze to come out of the vents, but it doesn't
>seem
>> strong enough. Perhaps if someone can help me understand the following,
>I
>> can confirm whether or not I have a problem.
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> As a baseline: my 88 505S Turbo with new A/C compressor and a fresh charge
>of
>> R12 moves a MASSIVE amount of air, even with the fan in the off position
>> (slider at bottom). If the dash vents are all opened and pointed at me I
>> have to set the temperature slider at roughly 75-80 degrees F to keep from
>> getting goose bumps. The defrost and floor vents are far less effective.
>> Nonetheless, the ventilation/HVAC must counted one of the most successful
>> features of the 86-and-later 505.
>>
>> Rob Gold
>>
>
>
>
Brian Holm, Parts for Peugeots
at Peugeot Holm, since 1969
2120 Maple Hill
Plainfield, VT, 05667
802-454-7132, fax -1310