Wire/sensor on radiator

1987 CHEVROLET CELEBRITY
200,285 MILES • 2.8L • V6 • 2WD • AUTOMATIC
Avatar
ETERNALARIANNE
  • MEMBER
  • 203 POSTS
This is more information for me than anything else.

I am having a hard time finding what this is that plugs into the radiator. I’ve replaced the thermostat and temperature sensor on the engine itself, but I can’t find anything about what this is on the radiator.

It has a single wire going into it and it’s about 2 inches below the fill cap of the radiator. If this is a sensor, should I replace it since I’ve replaced the temperature sensor on the engine or what?
Image (Click to enlarge)
Attached Media
Feb 4, 2021 at 3:54 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi,

I believe you are seeing a coolant level sensor. I tried looking but can't find it in my manuals. I did, however, find an AC Delco part number. It is 25005074. If you don't have a light indicating low coolant, I would leave it alone. I did find a pic online and attached a pic of it below.

Let me know if this helps or if you have other questions.

Take care and God Bless,

Joe
Image (Click to enlarge)
Attached Media
Feb 4, 2021 at 4:53 PM
Avatar
ETERNALARIANNE
  • MEMBER
  • 203 POSTS
Okay, thanks. that’s makes since it would be a sensor of low coolant. I’m good on levels and haven’t seen a dash light so I’ll consider it good!
Feb 4, 2021 at 4:55 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
You are very welcome. I agree. If it isn't broken, don't fix it. LOL

Please feel free to come back anytime you have questions.

Take care,
Joe
Feb 4, 2021 at 4:57 PM