car warmed up, runs okay, fluid level in overflow container okay, but engine temperature just above bottom.
Dec 8, 2023 at 12:37 AM
Temperature gauge floats around near bottom line?
1999 TOYOTA AVALON
POOR-JOHN
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Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
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This can happen when the engine cooling system thermostat sticks open, here is how to change it out and see if this is the problem which is likely. Here is a generic guide to help you step by step with instructions in the diagrams below to show you how on your car:
https://www.2carpros.com/articles/replace-thermostat
Check out the images (below). Please upload pictures or videos of the problem so we can see what's going on.
https://www.2carpros.com/articles/replace-thermostat
Check out the images (below). Please upload pictures or videos of the problem so we can see what's going on.
Images (Click to enlarge)
Dec 8, 2023 at 1:26 PM
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Thanks! This morning the thermostat worked perfectly so I deferred the replacement. Any idea what causes a thermostat to be stuck open and then recover? (i.e. should I consider replacement to be urgent?)
Dec 8, 2023 at 5:21 PM
If you have the problem again, I would replace the thermostat. They just stick sometimes.
Dec 9, 2023 at 8:57 AM