1. Disconect battery. Drain coolant below level of waterpump at a min.
2. With 3/8 " drive breaker bar or ratchet move tensioner to loosen belt (enough to be out of your way but do not remove if not replacing.)
3. Remove metric bolts holding pulley to waterpump and remove.
4. Remove metric bolts holding water pump assembly and remove it.
5. Clean ALL old gasket off engine side of waterpump housing.
6. Install new waterpump with gasket with weep hole down & or arrow up.
7. Reverse steps 4-1, GM parts advised me to use new bolts for pump.
LJ
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Get a bentley. Look it up.
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