dkelly3103
Senior Member
I have a 2010 ram 1500 with the 5.7, it has around 190k miles on it. It runs and drives very well with the exception of a jumpy idle. Ive had it almost a year and it has always idled rough but has recently started to get worse. I am suspecting a vacuum leak. I took a look at the fuel trims and both banks show around +16% long term which indicates a lean condition and backing up my suspicions. I have sprayed all the common areas (throttle body, intake manifold, various vacuum lines etc) with brake clean and the idle didn’t jump or change at all so I’m not sure how else to check where it might be. Are there any common area on these that are known to have vacuum leaks?