How do you replace the water pump on a 2002 oldsmobile intrigu? on 2002 Oldsmobile Intrigue

it was spelling water form the overflow for a while so i replaced the thermostat, so the next morning driving to work it overheated. After about fifteen minutes into the drive, and it spiked very quickly. Been parked every since.

Asked by for the 2002 Oldsmobile Intrigue
Best source for information would be Alldata. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate
Autozone have some popular workshop manuals for free on line once you register (for free) on their website
and get an online repair manual subscription.
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The Intrigue is one of those pesky burppers. If your fortunate to find what looks like drain cock, in the upper passenger side of the radiator. Fluid comes out behind light, watch for bubbles. GOOD LUCK