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Join Date: Jan 2012
Location: Weddington, North Carolina
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Tried to fix a/c created another problem

I have a vacuum problem with my air cond controls. I took out all the controls on the center consolee to get to the vacuum lines. I found the loose line and put it back. I then put back all the other controls and when I started the car the instrument gauges stopped working. Well sort of!!!!. The "information" button is illuminated and when I push it the tachometer works but reads over 2K at idle. When I pull the hand brake the tach dies and the information light comes back on. The oil gauge sometimes works. Is it safe to assume I loosened a ground wire when I dove into the console or did I blow a fuse somewhere.

Also the flashing emergency light on the instrument panel stays on. I hope I made this clear enough.

Any ideas???? Thanks

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1988 Porsche 928 S4 (rescue)
Old 06-27-2012, 05:36 PM
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Quote:
Originally Posted by Mpierick View Post
I have a vacuum problem with my air cond controls. I took out all the controls on the center consolee to get to the vacuum lines. I found the loose line and put it back. I then put back all the other controls and when I started the car the instrument gauges stopped working. Well sort of!!!!. The "information" button is illuminated and when I push it the tachometer works but reads over 2K at idle. When I pull the hand brake the tach dies and the information light comes back on. The oil gauge sometimes works. Is it safe to assume I loosened a ground wire when I dove into the console or did I blow a fuse somewhere.

Also the flashing emergency light on the instrument panel stays on. I hope I made this clear enough.

Any ideas???? Thanks
Sounds like a ground issue or two plugs got swapped in your reassembly.
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Old 06-28-2012, 08:17 AM
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Did you remove the pod?
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Old 06-28-2012, 09:24 AM
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Thanks for the response.

Dean, since you mentioned it I did venture over to the pod because the high pressure washer button was broken. I had to remove some items, such as the lower pod trim. When I looked at the electrical connection it only had one wire going to it. Like a dummy, I pulled on another wire of the same size thinking it should be connected to the other side of the button. I might have pulled something loose over there or does the button only have one wire to it? I am very bad at electrical diognostics. Thanks.
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1988 Porsche 928 S4 (rescue)
Old 06-28-2012, 09:37 AM
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Good news. I spent well into the dark last night looking for the problem. Well, I decided to check the fuses. I found a blown 5 amp fuse that is in slot 10. Lesson learned. Look at the fuses first.

Thanks for your input.

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1988 Porsche 928 S4 (rescue)
Old 06-29-2012, 03:38 AM
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