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On the way to Seatac last week my alternator went south. I noticed the voltage gauge was way down and fluctuating a lot. Later came the high pitched noise, sounded like a supercharger. Now I noticed that my oil pressure guage has been fluctuating, at one point it got low enough while i was pulling into my driveway that i had to shut it down. Could the alternator be causing the other guages to go crazy or do i also have an oil pump problem? The brake light in the dash hasn't lit up for a while when it is engaged (before the alternator problem), could this be indicative of a dash wiring problem? I changed the oil pressure sending unit last summer, which fixed a previous high reading. I'm trying to sell this car so this is the last thing that I need. Any suggestions?

 

I'll bet the oil gage freaking out was just a result of the alternator dying. I've heard of bad alternators making gages do weird things. When my alternator died, my oil gage would tick along with the blinkers when I had my turn signal on.

 

Ya I've seen some wierd things when it comes to altenators going, so it's entierly possible.By the way what is it your trying to sell???????

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91'1LE Z28
K&N Filter (just getting started)All show no go.For now.

 

Oops, looks like I goofed. The car is a 1990 Formula 5.0L TPI 5 speed. Black with black interior.