1. Welcome to PlowSite. Notice a fresh look and new features? It’s now easier to share photos and videos, find popular topics fast, and enjoy expanded user profiles. If you have any questions, click HELP at the top or bottom of any page, or send an email to help@plowsite.com. We welcome your feedback.

    Dismiss Notice

Cooling issues

Discussion in 'Chevy Trucks' started by MarkEagleUSA, Feb 27, 2011.

  1. MarkEagleUSA

    MarkEagleUSA Senior Member
    Messages: 335

    Temp gauge reads approx 200, upper hose is hot to the touch, lower hose is cold, heat seems to work fine. Does this indicate a t-stat or water pump problem?

    Also, what's the purpose of the little rubber "cap" right below the radiator fill?
  2. tac48

    tac48 Member
    Messages: 41

    Sounds like t-stat is working if upper hose is hot, but sounds like you may not be getting flow through the radiator. T-stat is cheap and easy to replace. Definitely would not hurt to replace it regardless of what else you find. I am guessing the cap you are referring to is a plug or cap below the rad cap on a heater hose port. It makes the radiator fit more years as some trucks have a heater hose that connects there.