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05-17-2002, 10:03 AM
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#1 |
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Registered User
Join Date: Oct 2001
Location: Pittsburgh, Pennsylvania USA
Posts: 461
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Gauge Troubleshooting
Put an untested deluxe gauge set in an existing deluxe gauge truck. The untested cluster includes a tach. First the tach doesn't work or doesn't appear to, one lead to negative side of coil, second to fuse box for 12V. Do not know if the tach ever did work. Any bench tests known by anyone? ? I ran the 12v to the fuse box and piggybacked the panel lights to it. Also, the temp gauge will go full scale, with key on. Previous it read correctly. Any thoughts? Used to be ground would be ? full scale ? or zero?, and open would be the opposite. And last, the wire(black) that runs down the column with a light socket on it, goes to the upper right side of the gas gauge, correct or if not where? Majot league brain fade. Thanks for the assist. Obviously the tach dash looks great, but it would be better if it worked as well.
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05-17-2002, 10:52 AM
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#2 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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I don't understand the piggyback for the lights. If it is a factory tach you shouldn't have a light in it, it should use the lights in the cluster. It sounds as if you don't have it grounded right either. My 71 has a small ground connected to the back of the cluster on the speedodomter side down at the bottom of it on the back side. I would check the grounds really good they can cause all kinds of pains.
------------------ Andy 71's Are for ever!!! or 67,68,69,70,72 71,factory tach,tilt for straight drive,gauges,ac,speed warning,clock,305 HO TPI with 700-R4, lowered 2" & 3" ,and 17" Chrome Stealth wheels, Pioneer reciever,100 watt amp, 6 disc changer, 2-10" subs (behind seat) 2-6x9 in doors, 2-3ways mounted under seat, and 2 tweaters on door panels www.geocities.com/chevy71tpi/main.html www.picturetrail.com/Andy4639
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71  Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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05-17-2002, 11:28 AM
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#3 |
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Recovering Truck Driver
Join Date: Mar 2002
Location: Orleans, NE USA
Posts: 1,883
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it also sounds like a ground problem to me, that's the place i usually check after i find out if i have power to the item in question. the most overlooked porotion of an electrical circuit is the ground.
------------------ "In the words of Motley Crue, This will always be my home sweet home" Ol' Buck: '72 Chevy 1/2T 4x4 shortbox stepside 350/350auto on '84 ralleys and 31/10.5s Angel girl: 67 Cutlass convertible 330, 3spd stick Greener: 90 GMC Jimmy 350/auto Chad Stephens Orleans,NE no name yet: 72 442 under serious construction my site: http://communities.msn.com/Beastonabudget/homepage
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67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska |
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05-17-2002, 03:00 PM
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#4 |
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Senior Member
 
Join Date: Dec 2001
Location: Lexington,NC
Posts: 503
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If your old dash panel didn't have a tach in in it,I think you have to have the wiring harness for the tach dash.
------------------ 68 C-10 Custom LWB 307 V8 Three-on-the-tree Lexington,NC davideowens@lexcominc.net
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68 C-10 Custom LWB307 V8 Lexington,NC davideowens@lexcominc.net God Bless America |
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05-17-2002, 03:24 PM
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#5 |
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huh?
Join Date: May 2000
Location: Washington, Illinois
Posts: 5,692
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Not sure on the tach problem, but when I recently put the gauge dash back in my 68 stepside, it wasn't grounded well, and when I turned the lights on, hit the brakes, turned on the signals, etc, the temp and fuel gauges would go nuts. I installed a ground on the back of the cluster, to the dash, and haven't had any problems since.
TJ ------------------ 68 C10 Short Step (Christine), 406 SB, TH350, 3.73's, currently going on the back burner. New to my fleet, 67 C10 Panel (1 of 3827) (Nicknamed the laggin wagon, thanks to Josh, the webmaster), 292, p/s, speed, 86,000 orig. miles Gridley, IL bigbad406@msn.com I'm on MSN messenger under that address if you would like to add me...... Also on AOL IM under the nick tommy85z My Personal Homepage The 67-72 gallery on MSN, feel free to submit your pics! A pass-time of mine is storm spotting, click here to see Gridley IL's Emergency Services Homepage. AOL SN- Tommy85z
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Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay |
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