RW> Once you get those plugs/wires changed, you might want to take a look at   
   RW> having the MAF and O2 sensors tested. The MAF gets contaminated by all of   
   RW> the particles in the air and oil (if you use an oil impregnated filter)   
   RW> and looses it's ability to accurately report to the ECM. At the same   
   RW> time,   
   RW> O2 sensors get carbon build up and when the two are out of spec, the A/F   
   RW> ratio gets screwed up and the ECM can't control how much time to leave   
   RW> the   
   RW> injector's open.   
      
   Right, I do plan to load the ECM software on my tablet/netbook computer,   
   connect it to the Durango and take it for a drive.  It is a delicate operation   
   when cleaning the MAF sensor.     
      
   Normally, the O2 sensor will throw some type of code - especially if you have   
   more than one of them.  I have seen a dirty MAF causing low readings and   
   throwing everything off.  They are not hard to clean - just have to be careful.   
      
   RW> All of those sensors have sealed connections on them, so you won't bother   
   RW> them very much unless you use the power washer to directly clean them   
   RW> off.   
   RW> Any overspray won't hurt them at all. Since you don't have a distributor   
   RW> anymore, there's no chance of getting it wet.   
      
   You never had a problem with the power washer ripping through a wire?  That is   
   my other fear.  There are so many wires and things in the engine compartment   
   these days.   
      
   RW> If there is a MAF in the hose from the air cleaner to the throttle body,   
   RW> check it too. It may have a clogged screen, which will also give you fits   
   RW> if it's dirty. Be very careful when handling that thing, as it's a very   
   RW> sensative device. Replacement costs are around $200...   
      
   Yes, they are expensive.  I had to replace one years ago in my 85 Camaro.    
   They are not cheap.  The good thing is, they normally only need cleaning vs.   
   replacing unless you damage the wire(s).   
      
   - Mark   
      
   --- WWIVToss v.1.50    
    * Origin:  http://www.weather-station.org * Bel Air, MD -USA (1:261/1304.0)