[ImperialCrown]

You want to catch this when it's acting up for diagnosis. Try to see if it's losing spark or fuel or both. A fuel pressure gauge and noid light with the doghouse off for a road test will help.
Don't discount the fault codes that you have. They may be truthful. The freeze-frame or snapshot information along with the codes will help place the times and operating conditions to help see if they are real.
There were a couple of PCM flash updates to rectify fault code sets/driveability concerns also.
http://dodgeram.info/tsb/1997/18-03-97.htm
http://www.scribd.com/doc/56744957/Chrysler-Pcm-Flash-Availability

 

[JeepJake]

[sub]Check the grounds for PCM,relays ect. It may be a ASD relay but it would normally get worse with heat. [/sub]

[sub]May have a fuel pump in tank going bad just starting. I would check the Coolant temp sensor. This is on the thermostat.[/sub]

[sub]Best to check with scantool datastream but you can with effort check it with doghouse off,when it acts up at operating[/sub]

[sub]temp take the Ohms reading of CTS. It should be low ohms range. According to my manual it should read about 650-[/sub]

[sub]720 ohms when van is at 200+F. It may be staying too rich or lean.- Check your relays both fuel pump and the ASD relay.[/sub]

[sub]Reason I put emphisis on CTS is becuse of the temp and cool off then does it again. Seen the CTS itself be fautly or the[/sub]

[sub]actual connector to it. Check connector for terminal integrity. Its right on near the thermostat housing two wire sensor.[/sub]

[sub]May need manual there may be two one is your CTS to PCM, for cold enrichment ect, the other is for temp gauage and light.[/sub]

[sub]Make sure if you have two,check be sure its the CTS to PCM. Check all grounds. bad grounds can do strange things.[/sub]

[sub]Jake[/sub]

 

[Gimpy]

Thanks for the thoughts, I found a bad wire on the crank sensor, run like a champ foe a while. Now it's starting to act up again, different this time, so here I go again!
Gayle

 

[TWX]

No CEL? Might want to check for codes anyway...

 

[Gimpy]

Nope, no trouble codes, found bare wires on 3 wire plug on side of trans were shorting. Taped them up and everything seems good. I kind of wonder if trans was kicking out and not engine. It just happened cruising down the road, like a big clunk then go again. Feels good now I'll let you know if it happens again. For now it works good. I do appreciate all the ideas and help. Gayle