You may have a bad ground on the fuel sending unit. I assume the engine is in the car.
From: chevelle-list-boun...@chevelles.net [mailto:chevelle-list-boun...@chevelles.net] On Behalf Of rml...@comcast.net Sent: Monday, February 01, 2010 6:02 PM To: dansolo...@msn.com; The Chevelle Mailing List 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 <http://www.chevelles.com/forums/showthread.php?t=260728&highlight=hot+wires+SS+dash> &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. No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2660 - Release Date: 01/31/10 14:35:00
