So this started just after I got the truck home.  I moved from one driveway to an other and the engine stopped.  Restarted moved and stopped.  Then ran fine.  Week later and 1,000 miles into my get to know each other trip and the truck starts hick upping on the freeway going through Portland after 3 hours of driving.  Did it for 7 - 8 times, not in conjunction of the bumps in the road or anything. 

 

So we are a week later and it starts hic-cuping on the way to Ace.  Engine just dies then runs again.  17 PSI on the FASS to the VP.  No Water in the Water Trap.  Does it for 8-10 times.  Just like you bumped the switch off then on again.  I've seen things about data logging the edge is still connected, does it have an data logging capacity?  I'm pulling it off this weekend so that I can get it smogged next week.

 

Checked Codes and

P0521

P1693

P1765

P0622

 

Thanks Guys

Michael

Edited August 31, 20186 yr by int3man
Added Codes

Nope Somebody is still pissed!  Can't catch a break.  Drove it this morning after sitting overnight to put a heat cycle on it.  Died leaving the driveway, Coughed in route, stalled during cool down and threw the CEL.  Got home pulling  P1689  Communication to VP44; P1693 Code in Companion Module; P0622 Generator Field.  I replaced the Generator and was clear of this code.

 

New ODEBEC II scanner arriving today.

 

Michael

So I'm searching P1689 and found this little jewel.  Brought to us by Mopar1973man.  Thanks Mike

 

 

 

Could it be as simple as all that ?  Now to play relay mechanic!

Michael

Swapped relay with Spare.  Will test drive.  Got 4K ohms to ground on the relay.  Seems High!  12.5 volts from battery, need to check across relay.

 

W-T has been done but the Alt output still runs to the drivers side.

Measured 43 MV with my fluke from the battery terminal to the Alt post.

I have to look that one up.

Michael

 

 

Edited September 29, 20186 yr by int3man
added relay Alt Data

Yes it could be as easy as that.  P1689  The FUEL SYSTEM RELAY was causing the grief.  I swapped it with a  spare relay and have driven it for 3 trips no Hick-ups.  I'll post again in a week to verify.  If it was in there since new it had 318,972 miles on it.

 

So I took the old relay out and checked it out, it was greasy internally.  If it was dielectric grease that explains a lot.  Relays have contacts in them that need to make good contact, when you coat that contact area with non-conducting grease you shrink the surface are able to contact.  This increases the possibility of welding or arching.  When the relay or contact releases the current wants to continue to flow and it will arch as the two surfaces separate.  Once the surface area gets small enough they will weld together at higher current.  We used to have trouble with this on the 120 amp contactors for D.C. Power units.  The bus garage mechanics would coat the cable ends at the contactor with the red anti-corrosion battery terminal protector.  It would seep into the non IP67 contactors and dirty up the contacts.  That treatment is only for the Battery end not Starter motor or elsewhere.

 

Now to get through SMOG.

Michael

Edited September 30, 20186 yr by int3man

O.K.  Truck is running strong.  I passed Smog today.  Life is good once more.

 

For me P1689  The FUEL SYSTEM RELAY was causing the grief.

 

My problem solved.  Your mileage may vary.

Michael

Edited October 3, 20186 yr by int3man

Passed Smog and Truck is now in my name!!!!   Yippie!!

 

Thanks All

Michael