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Air Trapped in Cooling System
I recently changed the thermostat in my 09 6.7 cummins, and i'm having trouble purging air out of the cooling system. The expasion tank keeps over flowing and the radiator level drops.
I read online about jiggle pins, and do not know what/where they are.
Any help appreciated
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The jiggle pin is the little stem with a drop of metal on it. It's usually on the flat portion of the stat. I found the best way to fill it after the flush and drain is through the stat hole slowly until it's full, install the stat and then slowly cap off the radiator. Then there is very little air and the block and radiator and hoses are full. Left side of picture.
Are you sure you have the stat in correct ?
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Jim
2006 ~ 2500HD, Big Horn Edition, 5.9, 4x4, Q/Cab, 48RE, L/B, 3.73, S&B CAI & Snout, ProFlo 5" S/S exhaust, Smarty Touch, Oil ByPass Kit, 60 gal main tank, 110 gallon in-bed tank, XX-Fuel Filter System, Coolant Bypass Kit, Mag-Hytec front & rear end covers and trans pan, 285 x 70 x 17
"Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children’s children what it was once like in the United States, where men 'were' free." ~ Ronald Regan
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