Heat gauge stopped working?

1993 NISSAN SENTRA
400,000 MILES • 1.6L • MANUAL • ELECTRIC
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RUNGANATHAN
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I checked behind speedometer wires are fine ,I just can't find the heat gauge sensor,any idea who I can find it model GA16DE bubble shape
Jun 29, 2026 at 11:12 AM
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STRAILER
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Usually they are near the thermostat housing. The temperature gauge sender is usually not the same sensor as the coolant temperature sensor for the computer. The sensor will have 1 wire going to it. Check out the images (below). Let me know what you find.
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Jun 30, 2026 at 6:22 PM
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RUNGANATHAN
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Thanks I found the temperature sensor there was a cable loose,can this affect the rev meter? it use to jump idle a lot now that I joined the wire back properly it some how seems more stable before that I did clean the distributer cap and changed spark plugs back and it was still jumping
Jul 1, 2026 at 4:42 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,542 POSTS
Nice work, no the coolant temperature sensor will not affect the engine RPM, please start a new question for the additional issue and add a video as well. We only handle one problem per thread, please post your new question here, you must be logged in.

https://www.2carpros.com/questions/new

Please go over this guide and get back to me.
Jul 1, 2026 at 6:25 AM
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