TC nose on sport and 5.0 temp needle high

Topic: TC nose on sport and 5.0 temp needle high (Read 5467 times) previous topic - next topic

TC nose on sport and 5.0 temp needle high

Reply #45 – May 18, 2014, 10:47:38 AM

im not done yet, have a thread on electrical tech discussing an electrical solution... then i will update this thread.
we are not actually overheating.. by the looks of things.

TC nose on sport and 5.0 temp needle high

Reply #46 – May 18, 2014, 10:20:44 PM

Did you measure the voltage coming out of your resistor? Do you know for sure that is the issue? And if you did measure, what is it reading? If your gauge's are slightly off, id bet your at 6-7 volts instead of 5v. If it was 12v it would probably be skewed all the way to the right like in the photos above. Good luck and keep us posted.

TC nose on sport and 5.0 temp needle high

Reply #47 – May 18, 2014, 10:26:06 PM

Scott, you need to get this all figured out for me so i don't have to work as hard to fix mine

TC nose on sport and 5.0 temp needle high

Reply #48 – May 19, 2014, 06:53:18 AM

TC nose on sport and 5.0 temp needle high

Reply #49 – May 19, 2014, 09:15:53 AM

thanks tom, yep, thats one of the readings i took.
i just had a thought......... i wonder "IF" the sender resistance is too high in the aftermarket units... depending on what vendor made it.
if the resistance is too hight in the mid resistance scale, then that would answer why everything seems normal , but the needle is just high.
if this is the case then yes i would certainly find it much easier to calibrate with a combo of resistors at the sendor.
all three of my senders read about the same resistance value on the work bench though... and they are from different places.

i am also starting to wonder if what haystack said before could possibly be true,, my regulator on the alternator is going bad, but not bad enough now to fail... thus its putting out too much voltage.
with KOEO, we had 12.1vdc at the ignition switch though so i really didnt have a reason to check the alternator output.. yet the condition i am experiencing could be associated to the regulator,, especially when i add load like lighting, the alt would attempt to compensate.

thanks!

by the way, make a note in your manual there,, the oil gauge is not on the IVR,,, the statement is true for the 2.3L,, i think the oem shop manuals simply forgot to add this difference, then aftermarket support manuals kept the error by default.

TC nose on sport and 5.0 temp needle high

Reply #50 – May 19, 2014, 09:26:48 AM

Quote from: Haystack;433925

Scott, you need to get this all figured out for me so i don't have to work as hard to fix mine .

son is in charlottsville va now so testing and such as been delayed due to distance.
He is picking up a few small as possible resistors to parrallel them in line with the sendor, also i will ask if he can swap in his back up alt voltage regulator

TC nose on sport and 5.0 temp needle high

Reply #51 – May 19, 2014, 07:36:30 PM

Here we go jay this is how it is done.

http://1962to1965mopar.ornocar.org/ml-instrument-voltage-regulator64.html

TC nose on sport and 5.0 temp needle high

Reply #52 – May 19, 2014, 09:59:16 PM

thanks! saving this thread

TC nose on sport and 5.0 temp needle high

Reply #53 – May 20, 2014, 06:06:14 AM

Jay you can use inline resistance to balance gauge readings against engine temp at the sender. And you can separate each gauge to a dedicated voltage reducer (5V) Split to remove the variable impedance of the other gauges. Remember the impedance is constantly changing whether you gas Gauge is full 1/2 or ETC. Or when the temp or oil gauge varies. This is why a pulsing voltage was chosen. Not to mention back then they never thought of doing it electronically. Once those gauges are balanced they work very accurately. Also i am a believer of lights and buzzers for critical info like oil pressure. Nothing gets your attention faster than a light and buzzer system. But i understand having the stock gauges is mandatory for atmosphere. Also Ford seems to be the only car company that uses resistance before the Gauges. For the life of me i do not know why?? Maybe they want reduced voltage to the gauges at various indications and higher load factors from the gauge. No other car line uses it that i can find. And i have been messing with this for years. Best bet is individual feeds and i know that works excellent for all 3 gauges. I thought i sent you some of those push in Aviation type indicator lamps in Green Red and amber. If not let me know if you need some. Or want to incorporate visual indication as well as buttstuffog gauge readings. I also thought i threw in some buzzer units as well. Have a great day everyone

TC nose on sport and 5.0 temp needle high

Reply #54 – May 20, 2014, 08:56:46 AM

my 20th does all that early warning stuff, not so on the oldes sons bird.
i did use one of your lights on the Ghia, tiny led white that illuminates the new center console i added around the wifes stick shift.

i imagine in your article i could remove and replace the oem resistance wire..... yet i believe i have an update.

for the record,,
and yes i was neglegent in mentioning this.....................

when my son and i were adding the strut tower brace and investigating the temp gauge issue in tandom, the door was open for about an hour or so.
the battery went dead and we had to jump it.
thats telling me that what stacks said earlier might have some real value. in my words, i said to Mason "that aint right", "that light shouldnt have drawn down that battery that quickly"

talked to my son last night and he said he would look into getting a new battery.

TC nose on sport and 5.0 temp needle high

Reply #55 – May 20, 2014, 11:36:38 PM

I commonly leave my radio and door open when working on the.car. sometimes for 5 or more hours straight.