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#1060252 - 12/20/18 12:27 PM Temperature sender installation  
Joined: Apr 2000
Posts: 89
mikem Offline
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mikem  Offline
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Cleveland, OH
I need to replace the temperature sender (in the driver's side head -- not the ECM temp sensor that sits above the thermostat) and am wondering whether any thread sealant should be used. Unlike the sensor, which comes with a sealant pre-applied, the sender has no sealant on the threads. I don't want it to leak, but I don't want to interfere with the grounding of the sender. Also, how much (if any) coolant should be drained before removing the old sender? (Hope the sender comes out okay -- it's never been removed.)


87 SS, totally stock, original owner.
#1060253 - 12/20/18 01:46 PM Re: Temperature sender installation [Re: mikem]  
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tomh115 Offline
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Russellville, AR
My sensing unit came out fine. I did the stupid thing of thinking I could replace it with out draining.. I did but made a mess. Didnt use any sealant as I had to plug a hole puking antifreeze on me and the ground. Not saying I'd do it differently as the drain petcock is a PITA on my car to access just food. FWIW it didnt fix my issue of the gage not functioning


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1987 Monte Carlo SS Aerocoupe
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#1060254 - 12/20/18 02:22 PM Re: Temperature sender installation [Re: mikem]  
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Richie Cat Offline
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Richie Cat  Offline
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Lake Ronkonkoma, N.Y.
Drain at least a gallon out. The new sender has brass threads and will make a seal when you tighten it in. You can put a light coat of thread sealant on it if you want and it will work fine.


83 SC, 355 w/TPI
#1060266 - 12/21/18 01:07 PM Re: Temperature sender installation [Re: mikem]  
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Posts: 89
mikem Offline
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mikem  Offline
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Posts: 89
Cleveland, OH
Thanks to both of you. What happened was that the blade on the sender that the connector slides onto broke off. I noticed that it left a small round metal nub. What I've done in the meantime is to run a short test wire (with alligator clips at both ends) from that nub to the connector wire. It works, so I may put this job off for a bit. Jerry rigged? Yeah, but I'm afraid that the sender might break upon removal since it's been in there 31 years. I once had a spark plug snap off while being removed, and removing its remains was a royal pain.


87 SS, totally stock, original owner.
#1060268 - 12/21/18 02:35 PM Re: Temperature sender installation [Re: mikem]  
Joined: May 2016
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Witness86SS Offline
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Witness86SS  Offline
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Hatfield, PA
Solder it on


Justin
1986 Black SS
Upgrades: 350 L05 - Hooker Longtubes - FlowMaster True Dual 2.5" - Electric Cutouts - Electric Fans - Transcooler - Proforged Steering Kit - Astro Shaft - AR62 OUTLAW II Wheels - Energy Suspension Bushings - Bitflipper Chip - 87 ECM - Moog Springs and Ball Joints - Bilstein Shocks - Bucket Seats
#1060272 - 12/21/18 11:08 PM Re: Temperature sender installation [Re: mikem]  
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BadSS Offline
15+ Year
BadSS  Offline
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Posts: 1,556
Pearl, MS, 39208
Originally Posted by mikem
What happened was that the blade on the sender that the connector slides onto broke off. I noticed that it left a small round metal nub.


Mine came off years ago. I used a speaker terminal connector - slips right over the nub and holds tight. Seems like I had to open up the gap a little at the green arrow to get it to slide on though.
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Original owner of 1985 SS black hardtop w/gray interior. Frame-on restoration - 406 sleeper w/ heavily ported FIRST TPI. However the 1.875" headers, 3.5" duals, TH400, Ford 9", notched frame, and 10-point cage w/swing-out bars might tip you off it's not a lil' ole 305 TPI. Other mods: 2" drop, 18" wheels, f/r disk brakes, and custom stereo system.
#1060274 - 12/22/18 08:31 AM Re: Temperature sender installation [Re: mikem]  
Joined: May 2009
Posts: 1,889
Richie Cat Offline
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Richie Cat  Offline
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Joined: May 2009
Posts: 1,889
Lake Ronkonkoma, N.Y.
Originally Posted by mikem
Yeah, but I'm afraid that the sender might break upon removal since it's been in there 31 years.


As it's been said K.I.S.S. Use the correct size 6 point socket and remove it, install a new sender and you're done.


83 SC, 355 w/TPI

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