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Re: GM 4cyl ecotech water pump
Posted to Technical Discussion Forum on 1/21/2020 1 Reply


Use the otc tool that bolts up to all 4 threads on the timing cover. The half circle one isn't as reliable. Make sure bolts are tight and there is no movement on the tool before removing the water pump bolts. You will need to remove the t-stat housi... Login to read more.

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