Why does my coolant temp when driving highway speeds drop down to near cold? Not all the way cold but it will drop alot

Austin Port

Asked by Nov 01, 2015 at 05:18 PM about the 1983 Chevrolet C/K 10

Question type: Maintenance & Repair

At idle it runs at 195 just fine. just
when driving freeway speeds. (55-

2 Answers


Either your thermostat is stuck open, or someone removed it altogether.

1 out of 1 people think this is helpful.

You need a new thermostat.

1 out of 1 people think this is helpful.

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