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1989 GMC S15 Repair Question


Topics covered: Temperature gauge.
Mileage: 173,000 miles.

Asked on March 13, 2013

GMC S15 Temperature gauge Problem

My truck has the 4.3L V6. The issue is that the temperature gauge will spike as if the truck is overheating. After the spike, it will return to normal operating temperature, but will consistently flutter between normal temperature and 210 deg which is the midpoint on the temperature gauge. What could be causing this issue?
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Answer

Replied on March 13, 2013

Might be an issue with temp gage sending unit?

Tiny Answered by JDL (expert)
14,406 answers provided