S sonnyfresh2004 New member Joined Jan 26, 2010 Messages 1 Reaction score 0 Points 0 Jan 26, 2010 #1 Why does my truck's engine pulsate while driving @ any speed? I can watch the RPM's raising and lowering all the time, even at a constant speed!
Why does my truck's engine pulsate while driving @ any speed? I can watch the RPM's raising and lowering all the time, even at a constant speed!
