fuel and temp gauge wont works...think ive fried them! help please!

[manuto666]

my fuel and temp gauges won't work (and speedometer light) all the other works well... i think ive burn them when my voltage regulator stop... ive made a few tests... the gauges when to full when ive tork them screws for a few seconds...
so now i've change the voltage regulator to a 5V chips and all done well...ive put some blue LED instead of regular bulbs..(exept the ones in the turn signals and oil/break)

they all work exept the speedometer one...
so now is it that i've fried those gauges in having them 12V too long in them?

are they combined(in series) with the speedometer bulbs?

anybody have those gauges?

thanx a lot for your help!!

 

[67Dart273]

What are we workin' on? You should be able to easily follow the circuit path by looking at the circuit board.

You have done what, built your own regulator? Do you show that it's giving you 5v at the gauges?

 

[RedFish]

Ask yourself, "Why in the world would illuminating the speedometer side of the panel be related to the gauges in any manner ?"
All illumination bulbs are on the same circuit orange wire ( does not include the indicator bulbs ). If your panel has 2 separate circuit boards, there will be an orange wire to both.

 

[manuto666]

its for my 1968 plymouth valiant signet

 

[manuto666]

 

[manuto666]

ok i've found out that my voltage regulator (5V) chips was not sending any output...i've take the wiring harness that i can plug everything outside the dash and make the trouble shooting from there... so i can work better and see what's the problems was...i'm better at it everyday!! now everythings work except the TEMP gauge but it has 5 V going on there... surely blown but the gas gauge work well...

 

[KitCarlson]

Have you checked the temperature sensor wire connections, and associated sensor?