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clinebarger · 04-01-2015, 08:35 PM

I have used them in the past, They rarely/never work correctly. I have used resistors to up the resistance to get the gauge to read half way at 210°F, But the Scale/Sweep is still off.

If it helps, The '98 3-wire CTS puts out (approximately) 1365 ohms at 100°F & 55 ohms at 260°F on the gauge wire.

Never had an issue drilling & tapping the head (3/8" or 1/2" NPT).

04-01-2015, 08:35 PM	#2
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: Coolant temp sensor question I have used them in the past, They rarely/never work correctly. I have used resistors to up the resistance to get the gauge to read half way at 210°F, But the Scale/Sweep is still off. If it helps, The '98 3-wire CTS puts out (approximately) 1365 ohms at 100°F & 55 ohms at 260°F on the gauge wire. Never had an issue drilling & tapping the head (3/8" or 1/2" NPT).