On April 14, 2019 at 15:21, Glackowitz said...
I just pulled one of our cars in to replace a water pump, we have owned the car for about 11 years and think itís still the original pump. Bought the car with 65,000 miles on it and now at 208,xxx.
Need to get the fan clutch and fan off first. Itís a 36mm nut with about 1/2Ē of clearance to get to it. My largest crescent was to thick, might be a call to OíReillys or autozone for a loaner tool.
If it's a GM clockwise rotation engine, the nut is left-hand thread, which ensures that the engine's rotation is always trying to tighten the nut. Put an open-end wrench on the nut and hit it with a hammer or dead blow hammer in the opposite direction and it should become loose. If not, give it a shot of PB Blaster and wait 15 minutes before trying again.