1998 Dodge Ram Van 3500 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1998 Dodge Ram Van 3500

The AC/heater (HVAC) system may unexpectedly switch to the defrost mode when accelerating. This system is operated by engine vacuum and should be inspected for any vacuum leaks if this problem develops.  There is also a revised vacuum check valve available to address this concern.

Some vehicles may exhibit one or more of the following: Spark knock complaints when the vehicle is under load, various single cylinder misfire, and surge in 4th gear (around 45 mph). Our technicians tell us that rerouting the coil and spark plug wires to minimize induction effects will commonly correct this condition. If wires must cross during the reroute procedure, they must cross at a 90 degree angle.

On 3.9L V6 and 5.9L V8 engines, the intake manifold gasket may leak and cause increased oil consumption and a spark knock during acceleration; the gasket should be replaced.

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Driver side, towards rear is an onboard generator. Underneath the generator, under the vehicle is what looks like a compressor tank. I want to remove this, but there is black hose that run from the tank that goes up and over the gas tank. I can't see where it terminates. Is this connected to ...

is it possible to rebuild a rearend on the above vechile.if rear

end bad.

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VEHICLE DESCRIPTION: PASSENGER VEHICLES BUILT WITH POWER SEAT OPTION. THE DRIVER'S SIDE FRONT SEAT ATTACHING RISER WELDS WERE NOT CORRECT.

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I have a 1998 Dodge B3500 conversion van by Pleasureway. The excessive rear end sway was nearly totally eliminated by installing 2"spacers on rear wheels and raising air pressure in rear air bags to 75lbs.Front steering problem (wander) improved by replacing all four ball joints, shocks & steering damper. Steering wheal still wanders a bit, but havingit checked on 4-22-15. I'll let all know ...

I have the Dodge 3500 with a coach house conversion. I found that if I put more air in the air bags, it added more weight to the front and took away the sway.

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