[Wingwrench]

I have the 5.3 in my 70 El Camino running right thanks to Hotwire Jeff, but I am still fighting with the temp guage I have tried all kinds of resistors the 125 ohm ceramic resistor is the highest one that I have tried so far and it is the only one that will get the needle to move from full left to the 100 mark even though the scanner is reading the temp at 187 to 190. I'm using a 98 Camaro LS1 3 wire temp sender, so I'm wondering if anyone else is using this sender with factory type guages and what resistor you may have used. As usual any help is greatly appreciated. Thanks

 

[123pugsy]

Since your stock sensor works with your car, make that fit your motor:

Swap Coolant Temperature Sensor Adapter M12 1.5 to 1/2'' NPT for LS Engines, Coolant Temperature - Amazon Canada


I ended up making one as I ordered the wrong size and didn't want to wait for the correct one. I had to add a resistor as it was showing 1/2 tank at regular operating temp. That brought it down to 1/4 tank. I don't have digits on my 69 factory style temp gauge.

 

[Wingwrench]

I just ordered this thing! We shall see what happens.

Temperature Gauge Adjustable Resistor 68-76 | Shop Gauges and Related at Northern Corvette

Shop for Temperature Gauge Adjustable Resistor 68-76 for your Corvette today. We are Canada's best source for Corvette parts online!

www.northerncorvette.com

 

[modern malibu]

all sending units must match the cars gauges get a temp sender for a gauge for your car. tryto get a shorter adapter because it will place the tip further into the coolant jacket for more accurate readings and dont use sealer on the adapter or sending unit.Are we talking about a temp sender or a fue tank sender?I am confused by your post

 

[Wingwrench]

No it was for the temp guage, but I'm gonna try the adjustable resister because when I put a 125 ohm resistor on the back of the guage it did actually move a little only over to the 100 line but that was the most I'd seen it move, and the highest resistor I had so since I don't know what I need this seems like the best option to me. I still have the original ac box on the firewall so the adapter to be able to install a install a factory sender on the passenger head wouldn't work in this situation and I can not afford a stand alone ac system!

 

[modern malibu]

use the adapter offered by dakota digital.It is shorter than the one pictured which puts the probe more in the coolant stream for more accurate readings..Ask me how I know?

 

[Wingwrench]

use the adapter offered by dakota digital.It is shorter than the one pictured which puts the probe more in the coolant stream for more accurate readings..Ask me how I know?

Ok maybe a picture?

 

[danbo]

Here is what I did

Working factory water temp gauge

I swapped an LS1 into my '69 and wanted to use the factory gauges. I tried to find a modern 12mm sending unit that had the correct resistance range to put the gauge needle in the center of it's travel at operating temperature. I have not been able to find one. The 12mm ones that fit the LS...

www.chevelles.com