Bleeding cooling system
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98buicklesabre
- SLE Member

- Posts: 55
- Joined: Sun Apr 24, 2011 5:17 pm
- Year and Trim: 98 Buick Lesabre Custom
Bleeding cooling system
How would i go about bleeding a cooling system on a 98 lesabre just want to make sure i have all air out, i see the bleeder just wanna make sure its running good
Re: Bleeding cooling system
If you follow this you should be all set. You can bleed the air without having to drill a hole in the thermostat. Might just take a little longer.
http://www.pontiacbonnevilleclub.com/fo ... f=53&t=159
http://www.pontiacbonnevilleclub.com/fo ... f=53&t=159
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01bonneSC
- Certified Bonneville Nut

- Posts: 4938
- Joined: Sat May 24, 2008 5:18 pm
- Year and Trim: 05 Chevy 'Hoe
1997 'maro (3.8L M5)
89 SkiDoo - Location: Sycamore, IL
Re: Bleeding cooling system
Get the car up to running temp, crack the bleeder till coolant comes out. Air will come out before the coolant so tighten it back down as soon as you see coolant run out.
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imidazol97
- Posts like an L67

- Posts: 1204
- Joined: Wed Jun 04, 2008 7:55 pm
- Year and Trim: 2003 Lesabre Limited, 2008 Cobalt, 2014 Malibu
Re: Bleeding cooling system
If the system was drained there may be air in the heater core. The manual says to heat the car until the lower radiator hose is warm (probably after driving it somewhere is best). Run the engine at 2500 rpm for 10-15 seconds. Idle. Repeat for a total of 5 times. I do this with the car in my driveway which has an up hill slope so the heater is lower than usual relative to the rest of the cooling system.98buicklesabre wrote:How would i go about bleeding a cooling system on a 98 lesabre just want to make sure i have all air out, i see the bleeder just wanna make sure its running good
After the heater is purged, then bleed at the thermostat cover!



