Tere1071 Posted April 29, 2023 Share Posted April 29, 2023 My friend and I have been traveling for about 30 miles on a warm day and the gauge hasn’t moved. What should we check? Quote Link to comment Share on other sites More sharing options...
RX400h Posted April 29, 2023 Share Posted April 29, 2023 You should check to see if there are any codes. If you don't have a code reader, you can take the car to any O'Reilly's or other auto parts store for a free code check. Possible issues: Stuck open thermostat Faulty temperature sensor or gauge Quote Link to comment Share on other sites More sharing options...
paulo57509 Posted April 29, 2023 Share Posted April 29, 2023 If you have access to a scan tool, you can read coolant temperature and compare that with the gauge to see if the gauge is giving you a true reading. The issue will be something that RX has posted. I do know that the LS has a chronic problem with gauge needles sticking (at minimum or zero) because the instrument lube used tends to get sticky over the years. I know that this effects speedometers and tachometers; it may also affect the other gauges. 1 Quote Link to comment Share on other sites More sharing options...
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