Quote:
Originally Posted by 20GMC00
Spark plugs all looked the same...brownish.
No bubbles in coolant when it is running.
I am gonna check the coolant tank tomorrow and let you know.
Thanks
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If the coolant does not bubble with exhaust pressures[place a ballon over the cap hole ] , then remove valve cover[s] and inspect for coolant leak running down into the oil drain back hole , on top of the head.