Originally Posted by dewzram
I've had my Ram, which is a 2000 1500 QC 4x4 with the 5.9L and for the past 3 years (since I've owned it) I've had a slight intermittent stall. It is very random when it occurs, sometimes not at all, or sometimes 5 times a day. can happen at idle, or while driving 75 mph. It will stall for a split second, the RPM's cut out and then as quick as it does it, it comes back like nothing happened. It'd never killed or stalled itself out, but this stall on the highway can be a bit alarming and startling if it hasn't occurred in a while. I've replaced plugs, cap, wires, and rotor twice now and spent hours routing plug wires so they are not touching at any point, still hasn't done a thing for this miss or stall. I've replaced an 02 sensor a while back that threw a code. I'm not experiencing severe oil consumption or pinging. Just curiuos as to what my top culprets could be at this point? Seems like most likely could be vacuume leak of some sort or fuel delivery/management issue right? Intake Gasket possibly? Or Fuel Pump/filter issue, or relay possibly? I'm just kinda at a loss since It's never thrown a code or left me stranded, so been very hard to pinpoint and fix.
Any thoughts or suggestions from those that have had the issues, will be much appreciated! Thanks!
Sorry I didn't see your thread till now.
I think you are on the right track. Fuel pressure (check at the fuel rail schrader valve) should be b/t 45-49 psi.
Yes, track down any vacuum leaks. Find all the lines. Does your HVAC work fine? If not then that confirms a vac issue of some degree. I mean running A/C and it does not stay cold or defroster setting is always operating.
Check all your fuses. Pull them out and look.
The next things could be crank position sensor (unlikely though w/o more info) and/or cam position sensor (located on the underside of dizzy).