related quest for hissing noise stops when brakes depressed or steering turned on 2008 Dodge Ram 3500

I have about 600 miles to drive to get to a good dealer, any problens with driving this far. with vacuum like hiss?

Asked by for the 2008 Dodge Ram 3500
1 answer
if you spray some ether around the engine while its running you should be able to find the vac leak 600 miles is a long drive for just a service I would find some one closer