2003 Chevy S-10 Code Po128B

2003 CHEVROLET S-10
45,000 MILES • 6 CYL • 2WD • AUTOMATIC
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SKEETER0352
  • MEMBER
  • 1 POST
I assume this to be the thermostat or coolant temp sensor. Could someone help with an opinion and some help locating each one? Thanks.
Mar 14, 2009 at 1:43 AM
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2CARPRO JACK
  • ✓Experienced Mechanic
  • 11,533 POSTS
Yeah, looks like itis the coolant sensor out of range.I would replace thermostat too, just to be sure.Thermostat is under the housing where the upper radiator hose mounts on the engine Coolant sensor is located on the drivers side cylinder head between the last two cylinders (see pic)


https://images.2carpros.com/forum/automotive_pictures/1639_s101_1.jpg

Mar 14, 2009 at 1:51 AM
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