dies when letting up off the throttle

[Andylad13]

i remember reading about this somewhere but the search came up negative. sometimes when i let up off the throttle all the way in a low gear, it will die. the only instance was today when i was backing up fast and stopped...then it went down to 300 rpms, and just died. all to fast for me to notice anything else.

any ideas??

 

[oregon-mike]

What I remember hearing about that symptom is lube for your fuel system. Add some biodiesel, some powerkleen, a quart of ATF, something to lube up your fuel . I don't remember what it is that is the problem, just the fix for it. Somebody will be along shortly with the technical reason why you need the lube I'm sure.

 

[RLDSL]

Kind of sounds like time for s fresh filter for starters.

 

[Diesel JD]

Plugged filter, bad fuel, bad IP or underrunning governor in the IP. I'd change the fuel filter and feed it some good fuel additive and fresh diesel before I would worry about anything worse.

 

[2manydsls]

Could also be the torque convertor not unlocking completely.
Ross

 

[hesutton]

If I remember correctly your metering valve is sticking/wearing out. I had a similar problem with my IP. I gave it a good dose of Power Service lube and it was a bandaid. I got another 3 or 4 thousand miles out of it. But, soon the weephole was leaking like crazy and I called it quits and got a new (read DPS modified) IP. You can get it to stop doing that with lube as suggested above, but its just a matter of time..........at least in my experience...........before you'll need an IP.

Heath

 

[argve]

Heath is correct.

That comes from a metering valve sticking - an good ole dose of fuel lube should take care of it. You will have to start using a fuel lube from this point forward because with the lower and ultra low sulfer diesel fuels on the market you will need the addt'l lube to keep things going good.

 

[Andylad13]

thanks guys, thats what i was think and dreading at the same time. it did it today to me again, but under a controlled environment...parked, and idling. i reved it up to 1500, and suddenly got off it, and it dropped to 200, managed to get back up to normal idle but it would have shut off if i did it again.

 

[Andylad13]

is there a way to replace the metering valve itself?

 

[argve]

You would be rebuilding the injection pump and then you might have the same problem - reason the fuels today don't lube as well.

 

[Diesel JD]

So you must rebuild the entire pump to fix a bad metering valve?

 

[argve]

If you are going in after a metering valve you might as well - hell you are there....

 

[Andylad13]

good point...well she's pretty much going to be driven till it dont work no more. then ill have an excuse to take a couple days off from work to fix it!!!