I've noticed a new old issue lately as it has warmed up, the idle rises while I am driving. I notice it at stops and it won't drop unless I hit the gas and let off it quick. I have a feeling it will get worse when it starts staying over 80.
I had this problem only it was much worse with the old Weber when I first bought the truck and the 1/2" plastic spacer seemed to be the cure. I'm half tempted to pull the intake and drill out the coolant hole like Geezer described in one of his posts. I am using a regulator and the mechanical pump.
Any ideas?
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