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Hello and welcome to Just answer.com, Super mechanic here. About your vehicle.
It sounds like the condenser fan may be drawing too much current, (there was a service bulletin on that) but you will want to see if there are any trouble codes stored.
The a/c does work and is not impaired by the warning light appearing , my question is is it being causesd by a faultly cooling fan relay or a cooling fan problem? as i said if i switch to the Economy mode ( no A/c) the light goes off, if I disconnect the cooling fan ( remove the electrical line in) the light will not come on the a/c works but ofcourse the cooling fan will not operate. Also as I said the light will go off when the car is running at highway speed or up above tpypical community around town speeds
any more suggestions for me?
There has been a service bulletin for that type of concern. Here is what it states.
Some 1985-1987 De Villes and Fleetwoods may have a condition of an intermittent cooling fan fault light on and a code F41. Some 1986-1987 Eldorados, Sevilles and Allantes may have a condition of an intermittent "Cooling Fan Fault" message on the CCDIC and a code B441. If these conditions occur, and the diagnostic tree in the Service Manual does not lead to the cause of this condition, use the following diagnosis.
Step 1 - Check for the proper fan control module. 1985 De Villes and Fleetwoods should have a fan module with part number(NNN) NNN-NNNNimprinted on the black plastic portion of the case. All 1986 and 1987 vehicles should have a fan module part number(NNN) NNN-NNNNor(NNN) NNN-NNNN
Step 2 - Check the fan control module ground connection near the starter. A loose or dirty ground connection near the starter may cause a false code F41 or B441 to set.
Step 3 - Check the cooling fan motors for excessive amperage draw. Disconnect the cooling fan module signal connector (circuits 790 and 791). Using an in-line or inductive ammeter with a 50 amp or lower full scale reading, measure the amperage draw of each fan motor while the fans are overridden at full speed. Use of an ammeter with a 50 amp or lower full scale reading will help ensure a reliable amperage reading. Consult the chart below to determine if a cooling fan motor is drawing excessive current:
1986 De Ville, Fleetwood, Eldorado, 13amps 13amps and Seville
1987 Eldorado, Seville and Allantes 13 amps 13 amps
If a cooling fan is found to exceed the maximum acceptable cooling fan draw, it should be replaced.
For warranty purposes, use Labor Operation J3400 at:
.3 hours for one fan .4 hour for both fans on De Villes .6 hour for both fans on Eldorados and Sevilles
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