Where is the voltage regulator on a 1988 Chevy S10 2.5L?
The voltage regulator on a 1988 Chevy S10 with a 2.5L engine is integrated into the alternator. Unlike older vehicles where it was a separate component, the 1988 S10's alternator has the regulator built-in. Therefore, you won't find a separate voltage regulator unit. If you're having charging problems, the alternator itself is likely the culprit.