temp sending unit question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

MARIOS68PANEL · 02-24-2012, 06:06 PM

First ,Do temp sending units fail and cause hi temp reading?
my truck has 67? - 72? stock gauges but not original to my 67.
It has a GM crate 350 that was resently installed.
Just when it gets warmed up it peggs the temp gauge.
I didnt believe it was correct but I bought and installed new thermostat same thing, new water pump same thing. And then a cheap tremp gauge at Kragens and its running just under 190 steady.
So I am guessing the sending unit that came with the GM Crate 350 has failed or is incorrect for the old gauges
Any Ideas would be helpful. I would like to use the stock gauges.

02-24-2012, 06:06 PM	#1
MARIOS68PANEL Active Member Join Date: Mar 2005 Location: North Highlands. California Posts: 449	temp sending unit question First ,Do temp sending units fail and cause hi temp reading? my truck has 67? - 72? stock gauges but not original to my 67. It has a GM crate 350 that was resently installed. Just when it gets warmed up it peggs the temp gauge. I didnt believe it was correct but I bought and installed new thermostat same thing, new water pump same thing. And then a cheap tremp gauge at Kragens and its running just under 190 steady. So I am guessing the sending unit that came with the GM Crate 350 has failed or is incorrect for the old gauges Any Ideas would be helpful. I would like to use the stock gauges. __________________ 67 short step 71 Custom

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