newbie here . sorry no photos yet . need my daughter to show me how . have 54 3100 with 12 v conversion just installed new gas gauge . should i remove the resistor from ign to gauge ? do posts on back of gauge require insulators when mounted ? thanks
Don't do it!!! If you remove the resistor, you will fry the sending unit in the tank. No insulators neccessary, but not sure why you ask the question.. No more advise without pictures!!! (just kidding) Welcome. We all look forward to pics of your truck. Andy
still wondering paper insulators were on the original gauge posts . reason for question about resistor with new gauge is it got really hot after turning on . or did i maybe cause a short somewhere? but why is resistor needed wit 12v gauge & 12v batt ? tank and sending unit has also been replaced is unit not for 12v system ?
Welcome fellow Texan! I'm pretty sure that if the new gauge is 12v, there is no reason for a resistor. With that said, however, I will put my standard caveat in here when it comes to electrical circuits. DON'T TAKE MY WORD FOR IT UNLESS SOMEBODY ELSE SAYS SO! I hate turning other people's trucks into toasters!
thanks Chiro and Ron. truck is out of town only get to see it on weekends. start from scratch again to get gauge working. belongs to SWMBO but i seem to be the one who gets to cuss and fuss. waiting for Nate to possibly give me some pearls of wisdom
Hi Booger ! Looking at the opicture I'm wanting to tell you it's JUNK and I'll be over soon to properly dispose of it..... The terminal posts on the back of the gauge are two , one is lefter more , this is the power one . the other , slightly higher one to the right , is where the sender wire attaches . The sender cares not a whit about voltage , the gauge head is what's 6 or 12 volts . if you put power to the leftmost post and have the other one disconnected , the gauge should peg on FULL , then use a jumper wire to ground the rightmost post , the gauge shopuld swing to EMPTY . Be aware the gauge pod *MUST* have PERFECT grounding or the gauge will never work correctly , there are four nuts and each one needs to have a star typ lockwasher to ensure good grounding , I use new nuts and washers plus I like to wire brush the mounting posts before installing the gauge pod... I hope this helps ? . Lots of older posts with perhaps more detailed fuel gauge diagnosis and repair tips .
Couldn't have said it better! Being 48 years old, this sounds like good advice! Please, listen to Nate. He knows what he's talking about!
