The temp gauge in my 94 S10 started doing that a few weeks ago, in a
narrower (20-25 degree) band. Then it settled down at 165-170 and
never went beyond that. Had the gauge checked, it was OK, so my
mechanic ordered a new sensor. Had the cooling system flushed and the
new sensor installed this morning, and now the gauge is acting right.
John Jones, Detroit
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