im still having gauge problems!!!

[txbronco_73]

guys, after alot of work on my gauges i finally found out that me gauges themselves are no good. something shorted them out. either that or they just are no good. anyways i took the cluster out of my project 73 bronco and put it in. now when i turn the key on all the gauges top out. the c/v unit im using is the one form my 73. i tested it as shown on the tech article to the left and it pulses like it shows to be good. what would cause my gauges to top out like that? any help guys? as much as it seems like im not getting anywhere with this, im far advanced from when i started trying to fix the problem. dirt donk has been a real big help, maybe he'll catch this and help me some more. thanks guys

 

[Broncobowsher]

Make sure the IVR has a good ground to the cluster
Make sure the cluster has a good ground to the body

IF the IVR has a bad ground, it won't work right, voltage stays too high, gauges peg

 

[77sport]

check to make sure that the gauge faces are not touching the back side of the speedo dial. if you tweek the speedo face or the gauge face or the mounts they will touch and short out. even if it works on the bench when screw it into the dash it can tweek it enough to short out, had my inst cluster in and out a dozen times before i discovered the problem. rebent the faces so they could not touch and it worked fine.

 

[txbronco_73]

thanks for the advice 77sport. jeepster and broncobowsher. ill try anything. ill let you know at the end of the day what happens. i hate these gauges, well i would like them if they worked.

 

[txbronco_73]

well guys, im happy to say that i now have all working gauges. im so happy now. i was ready to give up, but you guys kept me going and im thankful for that. turns out the problem was the ivr itself. the one i got brand new from o'reilly auto parts was no good. thats what threw me off. after getting another new one, i started it up and watched as my oil pressure rose to near 40 lbs, and my temp stayed steady around 170 degrees. oh it feels good, even got my gas gauge going. im one step closer to getting my d/d on the road. thanks so much dirt and all u other guys.