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Thermostat Replacement and location?

Tiny
WESTVAKNIGHT
  • MEMBER
  • 1999 FORD RANGER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 96,000 MILES
About two weeks I noticed my engine temp gauge running hotter than normal. I turned my heat on high and it went down to what it normally runs. Ever since then the engine temp gauge will runnin way up there, then drop way down. It will runnin in the red for a few seconds before going down to normal. I ask a friend and he said it sounded like the thermostat was sticking. Does this sound correct or could the cause be something worse? Radiotor levels are full. And the oil was recently changed.
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Tuesday, December 22nd, 2009 AT 9:54 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Sounds like the thermostat is sticking if its shut closed completely it will cause the engine to overheat then there goes a major problem. this guide will help walk you through the repair with instructions for your truck in the diagrams below.

https://www.2carpros.com/articles/replace-thermostat

Check out the diagrams (Below). I have included both the 4 and 6 cylinder engines Please let us know if you need anything else to get the problem fixed.
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Wednesday, December 23rd, 2009 AT 3:00 AM

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