Hi. This is a common problem that I've noticed on the internet and this forum for the Ram Trucks. It took me some time to find the actual problem.
Yes, it is a vacuum problem, but it is the check valves that are the culprit! Instead of replacing them however, just add them in series with the old ones.
They are located on the intake. Mine was next to the carb. I have a 1995 Ram 1500 V6 3.9L. The other check valve was to the Cruise Control. That fixed that as well. It used to lose speed when accelerating.
Hope this helps!
:) BTW, the check valves cost just a couple of bucks at auto stores.
Friday, November 2nd, 2007 AT 1:12 AM