Hi All,
My mechanic recommended I change the fuel filter, oil filter and spark plugs on my 48 D24, which I did this evening. After replacing everything, the engine idled very rough.
Being a rookie, I thought I may have had the connections criss crossed on two of the spark plugs. Now it only turns over. So I'm assuming I need to switch the two connections I changed?
Any ideas what may cause the rough idle? I made sure to gap the plugs as directed. The old plugs were ancient, black and the ceramic cracked in spots.