What is this attached to the radiator?
Supreme Member
Joined: Aug 2001
Posts: 1,896
Likes: 1
From: Warrington, PA USA
Car: "02 z-28
Engine: LS-1
Transmission: 4L60E
It is a low coolant probe. GMSPO supplies replacement radiators with that fitting even if the vehicle was not so equipped. If there is a wire there you should have a light that comes on to indicate a low coolant condition.
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MrPackstin
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