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Need help , Ac Condensor fan

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Old Jun 13, 2007 | 07:40 AM
  #1  
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From: Columbus Ohio
Default Need help , Ac Condensor fan

Hey guys, car has been in garage for apporx 1 1/2 year and the brake lights are no longer working, I have checked the bulbs and they are ok... can someone go over with me where the brake light switch is, I think it is in the master cylinder, also are the brake lights fused through the fuse panel.


Thanks

Last edited by Zandramus; Jun 14, 2007 at 01:12 PM.
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Old Jun 13, 2007 | 09:00 AM
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EC928NC
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Look under the dash and make sure you didn't kick the wires off the pedal switch.... ask me how I know...
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Old Jun 13, 2007 | 12:33 PM
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I printed out a fuse chart from 928gt.com and am going to start there I think I am just going to replace all the fuses as it looks like some arent the size they should be.


Thanks
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Old Jun 13, 2007 | 08:01 PM
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Many, I am not sure all, of the 928s have a bulb monitor system that detects bulb failures by comparison on the resistance of the rt. vs. lf. (if I understand corerctly). In my case the module was corroded and either needed to be replaced or bypassed. There are a number of posts in the archieves about a bypass that eliminates the benfit but also the head ache of this system.
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Old Jun 13, 2007 | 11:32 PM
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It would help to know the year of your car. Prior to 1984, the 928 used a pair of pressure switches mounted on the bottom of the master cylinder. 1984 and after used a switch mounted on the brake pedal. Do you have as flashing "brake press." light in the dash? On the earlier 928s, this occurs when both pressure switches have failed. When only one fails, you simply don't have any brake lights.
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Old Jun 14, 2007 | 04:56 AM
  #6  
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try checking the connection at the master for the brake lights also check the connection for the bulb tester computer this is just above the brains on the right side of the dash I think its a 14 pin black connector also check the CE panel for corrosion
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Old Jun 14, 2007 | 08:04 AM
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Found the problem, was a loose bulb on one side... Once I moved it around a bit both lights started working.

Thanks
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Old Jun 14, 2007 | 12:58 PM
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Originally Posted by Zandramus
Found the problem, was a loose bulb on one side... Once I moved it around a bit both lights started working.

Thanks
See guys, we didnt' need to know what MY.
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Old Jun 14, 2007 | 01:10 PM
  #9  
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Default Ok Nother problem has cropped up

1982 928...

Charged the AC system last night, car is blowing cold air but condensor fan hasnt come on yet. Realy is good Fuse is good , if I disconnect it and power it fan turns on. Is there a pressure or temperatur switch somewhere that I am missing? Last year I did timing belt water pump thermostat, new raqdiator hoses, car runs with temp guage below half, is it possible it just doesnt get hot enough to kick it on? still the difference in pressure on the high side was like 220 lbs without the fan running and about 180 lbs with the fan running seems like it should run whenever the AC is turned on....


Thanks
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Old Jun 14, 2007 | 04:14 PM
  #10  
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Originally Posted by Zandramus
1982 928...

Charged the AC system last night, car is blowing cold air but condensor fan hasnt come on yet. Realy is good Fuse is good , if I disconnect it and power it fan turns on. Is there a pressure or temperatur switch somewhere that I am missing? Last year I did timing belt water pump thermostat, new raqdiator hoses, car runs with temp guage below half, is it possible it just doesnt get hot enough to kick it on? still the difference in pressure on the high side was like 220 lbs without the fan running and about 180 lbs with the fan running seems like it should run whenever the AC is turned on....


Thanks
You should make a new thread for this problem, not change the title of an existing one. Makes for confusing reading if you click on the subject.
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