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PostPosted: Sat Oct 06, 2018 9:15 am 
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Joined: Wed Mar 18, 2009 8:21 pm
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Year and Trim: 2002 SLE Silver
The serpentine belt on my 02 Bonneville came off just as I was entering the parking lot of a restaurant last night. The lights went dim and the power steering lost power. I smelled the burning rubber just prior to the failure. I was able to park the car, call AAA and then enjoy a meal. Thanks Andrew for your advice on how far I can go without the water pump engaged! I will be replacing the parts today and was wondering which water pump was the best from the auto part stores. Any advice or just go with a lifetime warranty pump? What is the best antifreeze to use? Thanks!


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PostPosted: Sat Oct 06, 2018 1:20 pm 
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Year and Trim: 2002 SLE Silver
FYI: Mileage is 109,861 at failure.


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PostPosted: Sat Oct 06, 2018 11:11 pm 
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Water pump installed and system worked well during idle but overheated once I took the vehicle for a test drive. It turns out the thermostat had also failed during the initial water pump failure and subsequent engine overheating. Replacing the thermostat brought the temperature back to a stable level. :banana: Now to clean out the radiator. :roll:


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PostPosted: Thu Oct 11, 2018 4:19 pm 
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Location: Savannah, Georgia
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Be sure and purge all the water out of the system. That bleeder valve on the thermostat housing helps a lot with that. Very common on the site to have folks flush the radiator, replace the water pump, replace the thermostat and then post that it's running hot. These things have secret hiding places for air bubbles to hide and cause it to run hot. Lot's of good how-to posts on the site for making sure you get all the air out of the system.


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PostPosted: Sun Oct 14, 2018 6:06 pm 
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Thanks, I noticed the car running around 225 this afternoon after running with the needle in the middle of the Gage (200) all morning. I will try purging the system after I flush the radiator that has some gunk around the filler cap area.


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PostPosted: Mon Oct 15, 2018 12:32 pm 
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I have seen the caps get plugged with gunk after a radiator flush and the plugged cap would purge out hot fluid but not let the overflow fluid get back to the radiator causing an over heat issue. Make sure the cap stays clean to allow the proper flow to and from the overflow tank.


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