'89 v-20 I have.
My engine, a 3.7L, keeps overheating. Took bottom half of outdrive off to replace water pump. Found a brand new impeller, but small little pieces of a previous impeller had gone up thje water tube. Now must back flush the entire water system from heat-exchanger back for more little pieces od impeller that are blocking water flow. Will let evertyone know what progress I'm making.....
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