Question about Cars & Trucks
92 s10 blazer 4.3
PCM is the 'computer' or 'brain' for the engine. Why do you think that is making the noise? It may be under the hood of the Blazer, which would be hard to hear.
Otherwise, it could be a relay or other electrical component. What operation issues are you experiencing?
Posted on May 17, 2017
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Posted on Jan 02, 2017
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