Runs after key shut off

[CRWilliams]

I don't know if anyone else has had this happen, but on vacation pullng into Gunnison after a moderately hard run, I let the turbo cool down to 300 degrees and then shut the key off. The engine continued to run. I was just about to freak out and turn the key back on when it shut off. The time was really only about 1 to 1 1/2 seconds( I freak out easily with my new baby) but this is the second time it has happened to me, only after having the engine working fairly hard for an extended period. I have a feeling it is the fuel shut-off solenoid sticking when hot. Am I in for more real trouble or is this kind of thing fairly common?

 

[KEENO]

Was the pump ever rebuilt?

Hey mprtrpr!



I can't recall from you past postings whether the inj. pump has ever been replaced/rebuilt?



If not & the pump is failing, metal shavings internal of the pump can cause the fuel solenoid to become jammed and cause this "shut down" condition.



I hope it's only a sticky Fuel Solenoid for the sake of $$$$



KEENO

 

[Midnite]

Re: Was the pump ever rebuilt?

Originally posted by KEENO

If not & the pump is failing, metal shavings internal of the pump can cause the fuel solenoid to become jammed and cause this "shut down" condition.

This is exactly what happened to me during our trip down through Nevada and Texas this spring. The Cummins shop in Reno (Sparks maybe?) told me that the inj. pump was eating itself. He told me it'd last me until I got back to Alaska, and it did.



Unfortunately I didn't know to talk to Piers when I replaced the pump, so I just got a reman'd pump from Cummins here in Anchorage (for about $2000 ). One thing I didn't think about until I got back and was talking with Anchorage Cummins was that if debris was getting into the shutoff solenoid, was it also getting into the high pressure lines, possibly clogging the injectors? My idle was relatively smooth and I didn't have any real power problems, and as it turns out the mechanic I talked to was 100% confident that the debris wasn't getting to the injectors. I don't know what might've been different in my case, but I just recently saw a thread here on the TDR web site where a guy's failing injector pump did clog his injectors. For what it's worth...



Mike

 

[NOMOFO]

My cut-off solenoid recently failed but with opposite result. Truck just plain quit and would not start. Not sure if the plunger within could fail in the other extreme. I pulled it out and removed plunger and it was perfectly clean. You might just pull yours out and see if it's crudded up. I reinstalled without plunger and had to open hood and manually kill each time. Have since rigged manual shutdown cable as backordered unit has still not shown up. Might just give up on part and leave as is. Won't have to worry about thing just up and quitting on me for this reason again. Best of luck and hope it's not your pump.

 

[BushWakr - RIP]

I don't know if this may be your problem but... .

My younger brother had the same problem on his 92 CTD. In his case it would not stop, period. Dodge found that the wiring harness that passes behind the brake booster had chaffed right through and shorted alot of wires out, which in turn caused run-on condition. Believe it or not Chrysler went for the whole shot and paid over $1,500. 00 (CDN) for the repair. This happened the day he was to start his holidays and took 3 days to fix but they did fix it.

I hope this isn't your situation.



Regards, Bob

 

[CRWilliams]

Thanks all, I think I'll pull the solenoid apart and see if there is anything in it. I'll also check the wires. Its strange though, it did it right after I bought it and then again almost three months later. It has been fine again for three weeks.