temp sender question 69 427
Thread Starter
Burning Brakes
Joined: Apr 2007
Posts: 1,186
Likes: 41
From: Pinecrest FL
2015 C3 of the Year Finalist
temp sender question 69 427
The temp gauge on my 69 just started to read really high.
With an infrared gun the lower water hose is at around 150 upper at 185, so radiator is fine.
Fan clutch sounds light a freight train and is pulling plenty of air.
Gauge comes up to temp slowly, but when the motor is really hot, starts to read at like 220 now.
Should I just buy a new temp sending unit? Is there shielding off some type to block heat at sender?
Gary
With an infrared gun the lower water hose is at around 150 upper at 185, so radiator is fine.
Fan clutch sounds light a freight train and is pulling plenty of air.
Gauge comes up to temp slowly, but when the motor is really hot, starts to read at like 220 now.
Should I just buy a new temp sending unit? Is there shielding off some type to block heat at sender?
Gary
Racer
Joined: May 2011
Posts: 423
Likes: 93
From: Mechanicville NY
Hi Gary , yes it's time for a change, make sure that you get the correct one, if you get it NAPA or Advanced , they aren't correct, get from zips,ecklers,Willcox etc they are correct, if you can, try to get NOS , they are the most correct.
Mark
Mark
Last edited by Kaper220; Dec 22, 2012 at 07:41 AM.
CF Community Team
Joined: Oct 2004
Posts: 19,366
Likes: 5,244
From: Cape Cod, Mass.
2025 C6 of the Year Finalist - Unmodified
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
2021 C8 of the Year Finalist Unmodified
2020 Corvette of the Year Finalist (performance mods)
2019 C1 of Year Winner (performance mods)
2017 Corvette of the Year Finalist
2016 C2 of Year
2015 C3 of Year Finalist
'Lectric Limited has properly calibrated send units. Check the connection at the send unit first. I've had them wiggle loose and cause errant readings.
Melting Slicks
Joined: May 2001
Posts: 2,131
Likes: 4
From: May help you? You can sure as hell try!
The Lectric Limited sending unit was the only way I could get a proper reading. I installed a new Delco unit after my engine rebuild and even it read too high. Its pretty bad when the General's own replacement parts aren't right.
