Bad ground someplace?     Possibly at the dash or even out at one of the
lights??

On Sun, Feb 21, 2010 at 11:28 AM, <rml...@comcast.net> wrote:

>  Well I got my dash back together with new temp and fuel guages and
> everything is working, and it looks great. Now when I turn on my lights, my
> turn signal lights in the dash light up. When I turn on my turnsignals they
> blink, they are working, However I'am pretty sure the the dash bulbs should
> not light up whith the rest of the dash lights. Any body have an idea on
> what might be the cause. Thanks, Bob
> ----- Original Message -----
> From: rml...@comcast.net
> To: "The Chevelle Mailing List" <chevelle-list@chevelles.net>
> Sent: Monday, February 8, 2010 3:49:24 PM GMT -05:00 US/Canada Eastern
> Subject: Re: [Chevelle-list] wiring question
>
>  I have voltage at my guages, and I have voltage on the lines to my
> sending units ie. temp. and fuel. I disconnected the plug in the trunk and
> checked for voltage which tested ok. However when I unplugged it my guage
> didn't respond by going to full. Iam thinking maby I need new guages. I did
> the same with the temp. I checked for voltage by disconnecting the line at
> the temp. sending unit and got a voltage reading. However, the guage didn't
> respond to being disconnected or grounded. Do yall think maby I need new
> guages.Thanks to you all for all your help.
>
>
> ----- Original Message -----
> From: 327mal...@gmail.com
> To: "The Chevelle Mailing List" <chevelle-list@chevelles.net>
> Sent: Sunday, February 7, 2010 10:37:50 AM GMT -05:00 US/Canada Eastern
> Subject: Re: [Chevelle-list] wiring question
>
> 
> I don't know if this will help you but give it a look.
>  *The Chevelle Engineer*
> http://chevelleengineer.home.comcast.net/~chevelleengineer/fuelgage.htm
>
>
> ----- Original Message -----
> *From:* rml...@comcast.net
> *To:* The Chevelle Mailing List <chevelle-list@chevelles.net>
> *Sent:* Tuesday, February 02, 2010 7:53 PM
> *Subject:* Re: [Chevelle-list] wiring question
>
> Jim I appriciate your help. It seems to me Iam being told 2 different
> things here. Leo say's there should be no power at pins 10 and 11 and it
> sounds to me like your telling me there should be power at those pins. I
> dont understand the principles of operation here. I dont understand how they
> work.I hope someone here can explain to me exactly how it works. Does 12
> volts go through the guage and the sending units add resistance to ground.
> Thanks every body for your help here. I just wanna get my guages working.
> ----- Original Message -----
> From: "Jim Thompson" jimthompso...@gmail.com
> To: "The Chevelle Mailing List" <chevelle-list@chevelles.net>
> Sent: Tuesday, February 2, 2010 7:10:29 PM GMT -05:00 US/Canada Eastern
> Subject: Re: [Chevelle-list] wiring question
>
>  I will suggest again that ground is critical. Your fuel sending unit
> should have its own ground wire. The temp sending unit is hot, internally
> the switch closes to ground. With the key to “on” both should be hot. Your
> fuse box should have one fuse marked “gauges” if it is hot on both sides.
> Then it is a ground issue or short in the gauge harness.
>
>
>
> *From:* chevelle-list-boun...@chevelles.net [mailto:
> chevelle-list-boun...@chevelles.net] *On Behalf Of *rml...@comcast.net
> *Sent:* Tuesday, February 02, 2010 4:25 PM
> *To:* The Chevelle Mailing List
> *Subject:* Re: [Chevelle-list] wiring question
>
>
>
> Does anyone know where the voltage for the fuel and temp. guages is fed
> from. I have voltage to everything except these two guages. I unplugged the
> 12 pin connector that plugs into the pcb and checked  for voltage there.
> everything is hot with the exception of temp and fuel. all my fuses are
> good. Any ideas.Thanks, Bob
> ----- Original Message -----
> From: dhoesc...@granitecityperformance.com
> To: "The Chevelle Mailing List" <chevelle-list@chevelles.net>
> Sent: Monday, February 1, 2010 10:03:58 PM GMT -05:00 US/Canada Eastern
> Subject: Re: [Chevelle-list] wiring question
>
> I would suggest disconnecting the tan fuel sender feed wire at the fuel
> tank. Turn the key to RUN position and wait a few moments (some gauges are
> slow) with the tan wire disconnected the fuel gauge should read past full.
> Then ground the tan wire anywhere to the body and the gauge should read
> empty. If you get no response then you have a bad gauge or a wiring problem.
>
> -----Original Message-----
> From: "Tom Rightler" <bluess...@comcast.net>
> Sent: Monday, February 1, 2010 20:47
> To: "'The Chevelle Mailing List'" <chevelle-list@chevelles.net>
> Subject: Re: [Chevelle-list] wiring question
>
> If you want to check the gauges, send 12 volts directly to them and see if
> the needle moves.  If the needle moves, the gauges is good and there are
> wiring issues elsewhere.  I’ve seen brand new sending units fail.  There
> should be 12 volts at the bulkhead connector with the key in the run
> position for all wiring to the gauges.
>
>
>
> Tom
>
>
>
> -----Original Message-----
> *From:* chevelle-list-boun...@chevelles.net [mailto:
> chevelle-list-boun...@chevelles.net] *On Behalf Of *rml...@comcast.net
> *Sent:* Monday, February 01, 2010 9:01 PM
> *To:* The Chevelle Mailing List
> *Subject:* Re: [Chevelle-list] wiring question
>
>
>
> The sending. unit is grounded to the body, and the temp sending unit is
> new. Tom,do you know if there would or should be voltage at the 12 point
> connection into the pcb. for the temp and fuel guages
> ----- Original Message -----
> From: "Tom Rightler" <bluess...@comcast.net>
> To: "The Chevelle Mailing List" <chevelle-list@chevelles.net>
> Sent: Monday, February 1, 2010 8:53:30 PM GMT -05:00 US/Canada Eastern
> Subject: Re: [Chevelle-list] wiring question
>
> Is the fuel sending unit grounded to the body?  If the temp gauge isn’t
> working, it’s usually a problem with the sending unit screwed into the head.
>
>
>
> Tom Rightler
>
> MCC Newsletter Editor
>
> http://www.chevelles.net/mcc
>
>
>
> -----Original Message-----
> *From:* chevelle-list-boun...@chevelles.net [mailto:
> chevelle-list-boun...@chevelles.net] *On Behalf Of *rml...@comcast.net
> *Sent:* Monday, February 01, 2010 8:32 PM
> *To:* The Chevelle Mailing List
> *Subject:* Re: [Chevelle-list] wiring question
>
>
>
> I'am a firm beliver that there is no such thing as a dumb question. My dash
> lights are working fine. the dimmer switch is working I just dont have a
> temp. guage or a fuel guage.
> ----- Original Message -----
> From: dhoesc...@granitecityperformance.com
> To: "The Chevelle Mailing List" <chevelle-list@chevelles.net>
> Sent: Monday, February 1, 2010 8:25:13 PM GMT -05:00 US/Canada Eastern
> Subject: Re: [Chevelle-list] wiring question
>
> Forgive me if it's a dumb question...did you try rotating the knob?  I
> don't know if 1970 had the "dimmer" built into the headlight switch perhaps
> it's turned down to the lowest setting or the rheostat is burnt out?
>
> Second, did you check for power at the fuse?
>
> -----Original Message-----
> From: rml...@comcast.net
> Sent: Monday, February 1, 2010 19:08
> To: "The Chevelle Mailing List" <chevelle-list@chevelles.net>
> Subject: Re: [Chevelle-list] wiring question
>
> Yes I do have a schematic. I have a 70 ss with guages. Iam just not sure
> why the guages are not working.
> ----- Original Message -----
> From: dhoesc...@granitecityperformance.com
> To: "The Chevelle Mailing List" <chevelle-list@chevelles.net>
> Sent: Monday, February 1, 2010 7:27:55 PM GMT -05:00 US/Canada Eastern
> Subject: Re: [Chevelle-list] wiring question
>
> Do you have a wiring schematic -or- would it help if you had one?  What
> year Chevelle do you have?
>
> -----Original Message-----
> From: rml...@comcast.net
> Sent: Monday, February 1, 2010 17:02
> To: dansolo...@msn.com, "The Chevelle Mailing List" <
> chevelle-list@chevelles.net>
> Subject: Re: [Chevelle-list] wiring question
>
> Dan, The guages are not new nor is the engine harness or the dash harness.
> And no the guages did not work before. I was hoping that putting a new pcb.
> in would get them working. All the wiring is still original to the car. I
> did put voltage to the gas guage when I had it on the bench and was able to
> get movement. I used a 9 volt battery and the guage moved to around 1/2
> tank. I then reversed the polarity and the guage went back to E. So with
> that said I kinda assumed the guages were o k. I really appriciate your
> efforts, Keep pitching maby eventually I'll get a hit. Thanks Bob
> ----- Original Message -----
> From: "Dan Solomon" <dansolo...@msn.com>
> To: "Chevelle List" <chevelle-list@chevelles.net>
> Sent: Monday, February 1, 2010 5:34:52 PM GMT -05:00 US/Canada Eastern
> Subject: Re: [Chevelle-list] wiring question
>
> Are the gauges new? How about the dash harness and the engine harness? Did
> the gauges work before you made your changes? The reason I ask is that the
> pins are in different locations at the firewall. If one harness is from a 70
> and one from a 71-72 that may cause your problem.
>
> Thanks, Dan
> --------------------------
> Sent using BlackBerry
>   ------------------------------
>
> *From: *rml...@comcast.net
>
> *Date: *Mon, 1 Feb 2010 21:54:45 +0000 (UTC)
>
> *To: *<dansolo...@msn.com>; The Chevelle Mailing List<
> chevelle-list@chevelles.net>
>
> *Subject: *Re: [Chevelle-list] wiring question
>
>
>
> Dan, I did ground the cluster with one of the screws that attach the metal
> to the plastic housing. And all my lights are working, dash lights, head
> lights, but none of my guages are working. Fuel, temp, or amp. All of my
> fuses are good. Any ideas. Thanks Bob
> ----- Original Message -----
> From: "Dan Solomon" <dansolo...@msn.com>
> To: "Chevelle List" <chevelle-list@chevelles.net>
> Sent: Monday, February 1, 2010 4:41:31 PM GMT -05:00 US/Canada Eastern
> Subject: Re: [Chevelle-list] wiring question
>
> Bob,
>
> I don't remember if all of the wires in the connector are hot but you do
> need ground to the cluster. Use one of the screws that attach the metal
> cover to the plastic housing. Don't use the ones that attach the PCB.
> When you say your lights are working do you mean dash lights or headlights?
>
> Thanks, Dan
> --------------------------
> Sent using BlackBerry
>   ------------------------------
>
> *From: *rml...@comcast.net
>
> *Date: *Mon, 1 Feb 2010 20:56:09 +0000 (UTC)
>
> *To: *The Chevelle Mailing List<chevelle-list@chevelles.net>
>
> *Subject: *Re: [Chevelle-list] wiring question
>
>
>
> Thanks, Dan. Should I have a voltage at each pin on the 12 pin
> connector.ie.the fuel, temp, and amp. My lights are working, I didn't put a
> ground on the guage cluster itself. can that go on any screw on the back of
> the cluster. All the screws on the back go through the pcb.
> ----- Original Message -----
> From: "Dan Solomon" <dansolo...@msn.com>
> To: "The Chevelle Mailing List" <chevelle-list@chevelles.net>
> Sent: Monday, February 1, 2010 10:04:44 AM GMT -05:00 US/Canada Eastern
> Subject: Re: [Chevelle-list] wiring question
>
> I had a hell of a time with the dash in my 70. Must have pulled it out and
> put it back in 6 times. Make sure that you have the three black ground wires
> hooked up. One goes to a screw on the cluster, one to the metal frame of the
> dash carrier and one to the e-brake. Also did you put the ground strap back
> in under the light switch?
>
> My problem turned out to be the headlight switch. Power to the cluster
> passes through this switch. One of the spades slipped out aside the
> connector and was not making contact. Here is the topic on chevelles.com.
> It has some great pics and information to diagnose the headlight switch. It
> also includes information on the 12 pin connector and tests to verify
> voltage at the fusebox.
> http://www.chevelles.com/forums/showthread.php?t=260728&highlight=hot+wires+SS+dash
>
>
> Dan
> "It is a mistake to allow any mechanical object to realize you are in a
> hurry."
> http://www.freewebs.com/chevelles1970/
>
>
>
>
>
>
>   ------------------------------
>
> Date: Mon, 1 Feb 2010 10:06:28 +0000
> From: rml...@comcast.net
> To: Chevelle-list@chevelles.net
> Subject: [Chevelle-list] wiring question
>
> I set my restored dash in place and connected the wires, turned the key to
> acess. and my temp. fuel, and amp guages did nothing. Should there be a
> voltage at the 12 point plug for each of these three guages. My dash lights
> work. Turn signals work. brake lights. All the lights are working. Iam
> stumped. Any ideas,Thanks. Frustrated.
>
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>


-- 
Rick Schaefer
72 TPI El Camino

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