BennyLumpkin
Member
So two questions on my 99 Ram ...first is when on max cold it randomly switches itself from blowing out the vents to out the defrosters. Sometimes it switches back and other times I have to turn it off a bit then back on to get it back on right.....makes no sense to me.....secondly when lugging the engine it has a bit of a surge or gallop....only thing I havent replaced is the cap and rotor....plugs are new. Could that be the issue or is there something else going on?