Why does my Ram Van 2500 w/3

HALVIE1

MEMBER
1996 DODGE
147,000 MILES

Why does my Ram Van 2500 w/3.9L engine just periodically stop when coming to a stop? It usually happens when everything has gotten wet and or after multiple stops as in running errands. I have replaced the spark plugs, wires, PVC valve, crankcase inlet filter, coil and valve cover gaskets that were leaking. It will do it more after everything has warmed up but even sometimes when cold like sitting all day by work after getting totally wet from previous rain. I had the fuel pump replaced about four years ago. (?) It does almost act like it runs out of gas and when it stops it usually takes a half a minute or so before it will fire and start again. But when it starts it stops just about every time I am coming to a stop at a light or stop sign. I can sometimes keep it running if I put it in neutral and keep the engine runnung a little faster. I was told a few years ago that my head gaskets were leaking to because it does go through about one quart of oil every 2 months or about 1000 miles. I've also been told that the fuel filter may need replacing. I don't know what to do next. I hope you have some good insight about this and await your reply.

Aaron H

1 Reply

CARADIODOC

MECHANIC
33,873 POSTS

Forget the fuel filter. You'll never solve a running problem on a Chrysler product by replacing it, except on diesel trucks.

If the battery was recently disconnected or run dead the Engine Computer has to relearn "minimum throttle" before it will know when it has to be in control of idle speed. Until that occurs stalling at stop signs is common. You also won't get the nice "idle flare-up" to 1500 rpm when you start the engine. To meet the conditions for the relearn to take place, drive at highway speed with the engine warmed up, then coast for at least seven seconds without touching the pedals.

One quart of oil every two months or 1,000 miles is nothing serious. All engines use some anyway today due to the use of low-tension piston rings for better fuel mileage. To reduce the number of complaints of oil usage all manufacturers have "min" and "max" on their dipsticks now instead of "add" and "full".