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2002 Ranger Temp Gauge

Discussion in 'Under the Hood' started by Ranger2002, December 8, 2010.

^^Searches ExplorerForum.com^^
  1. Ranger2002

    Ranger2002 New Member

    December 8, 2010
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    '02 Ranger
    Hello everyone, an old Ranger guy joining up. Thanks for having me. So, I have a 2002 Ford Ranger.

    Lately, my temp gauge has been acting strangely. When I first start my truck, the engine temp will be on "C" and cold as usual. Within 5-10 minutes, the temperature has risen all the way up to "H" and the "check gauge" light will come on...

    30-60 seconds later, it drops back down to the middle and there seems to be no problem at all.

    However, when I am on the interstate and the heater is on, sometimes it will start climbing back up. Not to "H", but it will be about 3/4 of the way up, approaching the "H" before going back down. Other than that, everything is running fine with no differences in performance.

    Any ideas?
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