How do I find and loosen the radiator petcock?

1999 CHEVROLET S-10
180,000 MILES • 2.2L • 4 CYL • 2WD • AUTOMATIC
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HAROLDTURK
How do I find and loosen the radiator petcock on the pickup truck listed above?
Dec 10, 2024 at 10:18 PM
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LUCASNIC
  • ✓ASE Certified Mechanic
  • 13 POSTS
  • ASE Certified Mechanic
Reviewing replacement radiators for the 2.2L engine in your vehicle, the petcock or draincock is located on the bottom of the radiator on the same side as the radiator cap. Both of which are on the driver's side of the vehicle. The drain is a plastic plug that has a wing nut end on it so you should be able to loosen it by hand. You may need to pliers to crack it loose and then spin it out by hand. Be sure to have a drain pan ready! See the picture for reference, drain is circled.
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Dec 10, 2024 at 11:27 PM
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