Sorry guys.i have a 59 biscayne with a 283.stock temp gauge.just replaced the sending unit with a ts6t. I have an electric fan.when i run it it pegs shortly after running it.i checked the temp with a temp gun at the sending unit and it read 170. When its cold out it takes longer to hit the h.from what ive read the new replacement parts dont always match up to what they were.i read if you put a resistor in there you can get it to read right.again this is my 'first car'.ive been building bikes for 20 years.needed something new.its to hard to pack a 2 and 4 year old on bikes and travel.my 4 yr old and i have been going to local cruise nights and he loves hot rods.my dad was into cars as he was a mechanic.so id like to get my boy into some of the stuff my dad did with me.Thanks. TS6T the second T stands for Tru Tech, which is the 'cheap' brand of Standard Ignition parts.I've used the normal TS6 sender for years with the late 50s GM temp gages, they usually read so that 180 is about 1/3 to 1/2 of the way across the gage.What resistance is the sender when the engine is at 170 degrees? Just measure from the terminal to the outside of the sender, when the engine is warm.spec is 368 ohms at 100 degrees, 80 ohms at 220 degrees. So you probably would need maybe 100 ohm resistor?

1. Electric Motor Ohm Readings

With the temp sending unit unpluged the temp gauge goes to cold. My thought is a second bad sending unit or temp gauge. Sadly the only way to get a new gauge is with the entire 500.00 instrument cluster. Before i do that i will ohm out the sending unit from cold to hot. If it is the gauge ill just add a aftermarket gauge.

1. My Camaro has had a problem with the temp gauge over-reading by 30-40 degrees for several yrs. The engine, thermostat, radiator, temp sending unit and gauge have been replaced within the last year.
2. Sep 16, 2011  Have an ohm meter ready, as well as the tool(s) needed to remove the wire off of the sender. With the engine running/idling, notice what the gauge is reading, and write this down the reading. With the engine still idling, remove the wire off of the sender, then hook the positive wire of your ohm meter to the sender where the sender wire was.

Electric Motor Ohm Readings

Or something in that range.