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Thread: Refill block with coolant
04-11-2010, 01:03 PM #1
- Join Date
- Apr 2010
Refill block with coolant
I have a 2005 Tahoe with the 5.3 engine and would like to drain and refill the cooling system. The shop manual says it is necessary to disconnect an air bleed line between cylinder banks to allow air out of the block. That proceedure looks like asking for trouble. I'm just wondering if I could achieve the same thing by disconnecting the top radiator hose. The thermostat is not connected to the top hose so I think it should allow any air to bleed out as I refill from the coolant bottle.
Last edited by Ba$$n; 04-11-2010 at 01:06 PM.
04-11-2010, 05:33 PM #2
Try parking it on an upgrade, fill it and start it w/ the cap off. Let it run until the level drops & top it off. Rinse & repeat until all the air works out and it won't take any more coolant.Still Loyal to GM after all these years...:shocked:
2006 Impala LT 3.5L
2005 Silverado WT small cab/longbed 4x4 4.3L V6
1999 Grand Am 3.4L in TX w/ our youngest
1993 GMC Jimmy 4.3L 4 door 4x4 'Ole Rusty' - 'SOLD'
1988 S-10 small cab/longbed HT3.4L Crate Engine
1970 Nova 250 I-6, factory 3 sp floor shifter.
1968 Chevelle 'Nomad' Wagon 250 I-6 w/ 3 on da' tree.
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