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#1
08-02-2005, 07:52 AM
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speedometer
i have a 92 sc2 dohc and im having a lil trouble with my speedo. everything seems to be workin but when i get up to about 60mph my needle starts to jump up and down slow at first but the faster i appear to go my faster and wider range my needls moves. what cold the problem be and could it be an easy fix? thanx
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#2
08-03-2005, 12:52 AM
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Re: speedometer
possible problems
1. vehicle speed sensor 2. PCM 3. gauge cluster 4. wiring most likey the gauge cluster IMHO, but diagnosis require special tools(scantool at a minium). sorry i can't be more of a help
__________________
Daily driver: 1995 Buick Regal Custom 3.8L 4T60-E 150K miles Gone: 1994 Saturn SL2 1.9L MP3 168,666 miles EPA 608 Universal Certification EPA 609 Certification
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#3
08-03-2005, 01:28 AM
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Re: speedometer
so theres basicaly nothin i can do w/o a scan tool? if i had one would it read any error codes or would any even be present if there are no warning lights on?
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#4
08-03-2005, 02:26 AM
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Re: speedometer
no codes, you would watch the live data stream to determind what the PCM reads for speed, then use a osilioscope to confirm. you could just use the osilioscope but it would be a little harder. in cases like this, the gauge cluster is the most common problem IMO. if diagonsis is to much, you might be able to find a cheap cluster at a local junk yard.
__________________
Daily driver: 1995 Buick Regal Custom 3.8L 4T60-E 150K miles Gone: 1994 Saturn SL2 1.9L MP3 168,666 miles EPA 608 Universal Certification EPA 609 Certification
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