Radiator drain plug location needed

Tiny
THUNTERIII
  • MEMBER
  • 2003 CHEVROLET S-10
  • 4.2L
  • V6
  • 4WD
  • AUTOMATIC
  • 250,000 MILES
I cannot find the radiator drain plug. Need to know its location.
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Friday, December 8th, 2017 AT 1:24 PM

3 Replies

Tiny
RANDY B
  • EXPERT
Good. Stop looking. These newer plastic drain cocks are made of plastic, and they use rubber O-rings. There have been way too many instances where opening them just once breaks the plastic in the tank where the O-ring seats up against, then you have a coolant drip about once every five seconds. The fix for that is to replace the radiator. We never use those drain cocks any more. We pull the lower radiator hose loose.
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Friday, December 8th, 2017 AT 2:25 PM
Tiny
STEVE W.
  • EXPERT
Docs advice is very good on the S series. They put the drain down under the lower hose and below the trans cooler line right in a spot where it drains onto the frame rail. They are very prone to breaking off.
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Friday, December 8th, 2017 AT 2:38 PM
Tiny
THUNTERIII
  • MEMBER
Thanks for the prompt reply and appropriate advice.
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Saturday, December 9th, 2017 AT 9:26 AM

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