[Shotimes] Re: Gauge Cluster Issues

[James F. Ryan III]

That 'wafer board' may be a de-bounce/stabilizer circuit that keeps the fuel
gauge needle from bouncing as the fuel sloshes around in the tank.  Just my
guess.


James F. Ryan III



>-----Original Message-----
>From: shotimes-admin@autox.team.net
>[mailto:shotimes-admin@autox.team.net]On Behalf Of Jon Heese
>Sent: Tuesday, December 02, 2003 2:29 PM
>To: shotimes@autox.team.net
>Subject: [Shotimes] Re: Gauge Cluster Issues
>
>
>I don't think it's a sender issue (in the case of the fuel/temp gauges)
>because the gauges worked fine before I pulled my dash cluster to lube
>my rattling speedo cable, and the chances are slim that two senders on
>opposite ends of the car would fail at the same time (for no apparent
>reason).  I know that the signal for the fuel gauge goes through the
>little wafer board snapped in at the bottom right of the cluster (I
>suppose in order to convert the signal from the sender into a signal
>that the gauge understands), so I might suspect that something on that
>board has failed, except that I'm getting similar behavior on both
>clusters, and also I don't believe the signal for the temp gauge goes
>through this wafer board.  I think that the problem is between the
>senders and the connectors...  but where?  I don't know.
>
>As far as the tach issue is concerned, I did some of research on the
>interoperability of the gauge clusters before I bought the new one, and
>everything I found suggested that everything on any Gen1/2 SHO/SLO
>cluster would work in any Gen1/2 SHO/SLO, including the tach.  I guess
>the GL could be excluded from this rule because of the tach, I'll have
>to look into it.
>
>> Some of your problems may be sending units.  I believe they are
>> different between gauges and idiot lights.  The GL never had a
>> tach, so there is no signal to the new cluster.  Don't know what
>> to do about that.  You'll have to pick up the signal from somewhere.
>>
>>
>> Mike Wojton
>> Toledo, Ohio
>>
>> -'95 White MTX
>>    '96 Brake Upgrade
>>
>> Do not taunt Happy Fun Ball.
>>
>>
>>
>>
>> shotimes-admin@autox.team.net wrote on 12/02/2003 10:12:42 AM:
>>
>> > I just put a (known-working) 1990 SHO cluster (green backlight, 5-digit
>> > odo) in my 95 SLO GL to replace the OEM cluster (blue backlight, no
>> > tach) which i thought had busted fuel and temp gauges (both pegged out
>> > all the time).  All the wiring and clips seemed fine, so I figured I'd
>> > take the opportunity to upgrade to the 140mph/tach cluster while fixing
>> > my fuel/temp gauge issues.  Unfortunately, with the new cluster, the
>> > fuel and temp gauges are both stuck around the middle of their ranges
>> > (not pegged out like before) and the tach is dead at 0.  All of the
>> > lights (that are easily tested) in the cluster work fine, so I know I
>> > have connections at the plugs.
>> >
>> > My next course of action is to pull the "new" cluster and
>probe the lead
>> > connectors for signals on the appropriate pins.  The gauges in question
>> > all have 3 terminals labeled ground, signal and "beede".  I couldn't
>> > find anything on the web as far as what "beede" is, but a little poking
>> > with 9V on my "old" gauges seem to indicate that it behaves almost
>> > exactly like the signal terminal, except +9V applied to beede and -9v
>> > applied to signal moves the needle one way and the opposite
>moves it the
>> > other.  Anyone know for sure what kind of signal I'm looking for on the
>> > lead connector pins?  Anyone have any experience diagnosing a
>dead gauge
>> > cluster?
>> >
>> > Any help is appreciated.
>> >
>> > Jon Heese
>> > '95 Vulcan GL SLO
>> > _______________________________________________
>> > Shotimes mailing list
>> > Shotimes@autox.team.net
>> > http://www.team.net/mailman/listinfo/shotimes
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