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Temp Gauge


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Hello all, I notice that on my temp gauge it takes a while for the engine to get warm. Maybe 15 min. I've noticed that after it has hit normal temp. If I drive around, and I realize it is cold outside (Los Angeles - Not that cold), the gauge will drop a bit. Enough to make it noticable. I believe that at least on one occasion it reved a bit to warm up the car at a stop. Is this normal or am I just Paranoid? I also have a 90 and 91 ls400 which don't seem to have this issue.

Issue is on 93 LS400

170K miles

Any Info would be appreciated

Thanks

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yeah actually its kinda of common to have the temp gauges on an older LS read innacurate. heck its better a tick colder than a tick hotter, thats for sure.....

as others have mentioned go ahead and change out the ole thermostat, it takes 15 mintues and the part is dirt cheap, and its just a good maintenence item to change anyway for the future

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Thanks for your responses, I kind of suspected the thermostat, but wanted to see if everyone else felt the same. I will be replacing it this weekend.

By the way do I need a gasket or any thing else when I put it back together?

Thanks Again

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By the way do I need a gasket or any thing else when I put it back together?

the gasket that you need comes with the thermostat, i did it last month. no need to put gasket sealant or anything else on there, just what comes with it.

clean the housing and the area the gasket connects to though.

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