Temp Sensor replacement UPDATE....
Melting Slicks
Joined: Jan 2004
Posts: 2,672
Likes: 1
From: New Cumberland PA
Originally Posted by DWncchs
68 ohms of resistance should read around 220*
136 ohms of resistance should read around 150*
136 ohms of resistance should read around 150*
Thread Starter
Melting Slicks
Joined: Jan 2003
Posts: 2,713
Likes: 31
From: Shreveport LA
LA Events Coordinator
Originally Posted by DWncchs
68 ohms of resistance should read around 220*
136 ohms of resistance should read around 150*
136 ohms of resistance should read around 150*
Melting Slicks
Joined: Jan 2004
Posts: 2,672
Likes: 1
From: New Cumberland PA
How far did you drop it? Anyway, curious how this turns out.
Sending units do vary. I purchased Vortech heads and bought a new sending unit because the threads were different. The one I purchased was recommended by someone on the forum. Unfortuanely it didn't read correctly. It read way to low. I installed the oringinal one with a bunch of adapters and it right back the way it should be, except for the horrible adapters.
Sending units do vary. I purchased Vortech heads and bought a new sending unit because the threads were different. The one I purchased was recommended by someone on the forum. Unfortuanely it didn't read correctly. It read way to low. I installed the oringinal one with a bunch of adapters and it right back the way it should be, except for the horrible adapters.
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
Originally Posted by mandm1200
Seems like a reasonable answer. Is that the resistance of the sending unit or does that include the gauge?
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Got a temp sending unit that ain't calibrated correctly for your vette?
These guys have em that're calibrated correctly for C3 & look correct in correct 1/2" pipe size ... for under $20 ... how much is your time & aggravation worth?
http://www.lectriclimited.com/mainpage.htm
No ... they do not have them in smaller 3/8" pipe that're correctly calibrated.
These guys have em that're calibrated correctly for C3 & look correct in correct 1/2" pipe size ... for under $20 ... how much is your time & aggravation worth?
http://www.lectriclimited.com/mainpage.htm
No ... they do not have them in smaller 3/8" pipe that're correctly calibrated.
Thread Starter
Melting Slicks
Joined: Jan 2003
Posts: 2,713
Likes: 31
From: Shreveport LA
LA Events Coordinator
The gauge went south. I checked the resistance at the gauge's connector and started the engine. As the engine temp rose, the resistance started to decrease toward "0"...so that tells me the sending unit is working and the wires are connected correctly....the ONLY thing left is the gauge itself.....
Getting the new gauge tomorrow (Tuesday) from ZIP....if THIS doesn't fix it, I gues I need to replace the muffler bearings....I heard they usally are the culprit......
Thread Starter
Melting Slicks
Joined: Jan 2003
Posts: 2,713
Likes: 31
From: Shreveport LA
LA Events Coordinator
Found The Real Problem....
Found the REAL problem....it wasn't the sending unit.....it wasn't the gauge either....it was the dang-blam THERMOSTAT!!!!!!
Aparently it failed-safe (in the open position)...thereby not letting the coolant temp raise...ergo the sending unit and the gauge was TELLING THE TRUTH....after all the time spent trying to fix this problem!!! oh well.... Changed the thermostat and WHAM...it was fixed.....
Aparently it failed-safe (in the open position)...thereby not letting the coolant temp raise...ergo the sending unit and the gauge was TELLING THE TRUTH....after all the time spent trying to fix this problem!!! oh well.... Changed the thermostat and WHAM...it was fixed.....
Racer
Joined: Mar 2006
Posts: 349
Likes: 0
Originally Posted by vetteguy75
Found the REAL problem....it wasn't the sending unit.....it wasn't the gauge either....it was the dang-blam THERMOSTAT!!!!!! Aparently it failed-safe (in the open position)...thereby not letting the coolant temp raise...ergo the sending unit and the gauge was TELLING THE TRUTH....after all the time spent trying to fix this problem!!! oh well.... Changed the thermostat and WHAM...it was fixed.....
Aparently it failed-safe (in the open position)...thereby not letting the coolant temp raise...ergo the sending unit and the gauge was TELLING THE TRUTH....after all the time spent trying to fix this problem!!! oh well.... Changed the thermostat and WHAM...it was fixed.....
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