Stalling, Need Help

[JBurghard]

I've posted this in the 911 area as well so I'm sorry If I shouldn't have.



My 93 CTD is only vehicle I can drive to and from work so I am kind of in a pinch here.



Starting on Friday when I was coming to a stop my truck just stalled for no reason. It only happened once on that day, but as the days go on it happens more and more. I replaced the Fuel Filter think it might be bad or clogged, but during a test drive it still happened about every other stop and feels like it is going to stall at just about ever stop.



Is this a Fuel Pump going bad?



Thanks for the Help.



James

 

[ARedetzke]

Just guessing here, but maybe a fuel shut of solenoid going bad? Don't worry someone smarter than me will speak up.

AJ

 

[JBurghard]

Thanks.



If you are right were is it located at. This is my first CTD and I dont have the Cummins maual yet.

 

[matches]

If you look at the rear of your injector pump you will see two wires connected to a solonoid. The blue one causes the truck to shut off. It won't stall just shut off like turning the key off. Check the connections and the wires for any problems. If your truck is stalling like you say, then that's a different story.

 

[JBurghard]

I call it stalling, But it is just like the engine shut off. And on the times it kind of does it, it feels like it was going to shut off but then kept running.



So I am guessing this is my problem then???????



Thanks again for the help.



James

 

[matches]

I had a problem with my blue wire, before I figured it out I was going elk hunting one morning at about 3:30 am, cruising down the freeway at about 85, when all of a sudden it felt like my foot slipped off of the accelerator pedal, then it just picked up and kept going, it did it twice on that trip, I thought it was bad fuel. Then a couple of times it wouldn't start, just crank, and then finally it just quit, right on the road, after a $85. 00 tow I figured it was that $00. 05 part, since the fix no problems, live and learn.

 

[JBurghard]

Checked the Blue Wire and it was a little lose. Test drove the truck but it still has the same problem. Made a mad dash to the Part Stores before they closed and none carried the Fuel Silinoid. Is this a Dodge only part?



Also how terminal is this. Do I have a few days or Should I just park the Truck?



Thanks.



James

 

[matches]

Don't park it, check both wires, my blue one was lose and I crimped it a little to make it tight, I also cleaned the terminal. I still haven't relplaced the solenoid yet, that wasn't broke on mine. Does it sound like thats the problem though?

 

[JBurghard]

Sounds like the same problem to me.



I'll wait till I get to work tomorrow and then I will make sure all of the connections are good. I have a better selection of tools for wiring at work.



Thanks for the input, I owe you one.



James

 

[1stgen4evr]

stalling

While this is not absolute, it is a fairly reliable rule of thumb. If the truck will fire up quickly when it is cold and run after it is warmed up, you don't have a pump going bad but rather one of several other possibilities.



The 'like my foot slipped off the accelerator' is something I have experienced with the 93. It turned out to be a loose connection as described at the solonoid. You can slightly mash the connection spade and get the thing to tighten up. It needs to fit snuggly.



I have also had a complete hammer dead failure of the solonoid on the 92. It is a booger to change but you can do it. There is a recent posting on that.



You could be ingesting air into the fuel delivery prior to the injection pump causing the 'stalling' or 'pulling down' that you describe. I can not begin to suggest where as there are multiple possibilities. I once had a loose fuel filter that would cause loss of power and the weird thing is, it never leaked any fuel. It would allow air to be ingested there and 'stalling' or loss of power resulted.



But back to my first comment, if the pump is getting a steady supply of fuel and the engine will fire up and run when up to run temp, the injection pump is 99% of the time going to be OK.



James

 

[JBurghard]

Thanks for chiming in James.



Hadn't talked to you in awhile. I Didn't think it was the pump but I dont have a ton of diesel experience to fall back on. I will check the connections at work tomorrow and then test drive the truck if I am still having the problem I will swing by the Dealership and get a silinoid.



Just add it to the list:



Fuel Silinoid

Rear U-Joints

Transfer Case Linkage Shim

Oil Pan Gasket

Turn Signal Relay

Fix Speedometer

Fix Exhaust Brake



and look at replacing Body with Hummv Body.



Just a small list.

 

[1stgen4evr]

fuel solonoid

Not from the dealer unless you have extra bucks to burn. Go to a Bosch shop. Should be in the 80 dollar range. We have installed about a thousand cummins engines on the burners we sell and have a very good working relation with the local Bosch shop. We get the solonoid for a tad less than 80 bucks. There is a post recently on the solonoid and it is suggested that a VW solonoid will work.



My experience is that they don't get weak but rather if they go it is completely.



James

 

[arrowsmith]

it is a little extra work but you can take the plunger and spring out , put the solonoid back in and run it to see if it still stalls. If it does it isn't the solonoid. You will have to shut it off with the lever on the pump.

Arrowsmith

 

[TKingsbury]

If your truck is an automatic and your idle speed is low, it may die when you stop. Try putting it in neutral before you stop and see if the problem goes away. If so, increase your idle speed a little. If your truck has a manual trans feel free to disregard this post .

Travis. .

 

[BushWakr - RIP]

FYI... the "mirror wobblies" is a dead give away of low idle on an auto truck...

Never fails... if the idle is about 700 RPM the mirror's wobble on these things... ok they vibrate, there, is that better...



pb. .

 

[JBurghard]

Sorry mine is a manual.



But I did discovery that as I slow down and the truck starts to shut down if I let the clutch out a little it doesn't happen.



Still trying to figure this one out.

 

["Mad Max"]

agree with the loose wires thing - mine did same thing - engine just shuts down - no reason or simptoms, just stops running, either at speed or at idle or wherever, and I finally had enough after it died on the highway, up in PDR country, trying to keep up with NASCAR Mark (don't ever try that..... ).

Got it back to PDR's parking lot, got out the electrical box from the tool kit, cut each wire end off, and put on new female spade terminals, crimped the outer sides in just a bit, and slipped them on the solenoid, nice and tight, and ever since that moment I have never, ever had a repeat problem.

- Sam

 

[BHiggins]

Don't ask me how it works, but next time you fill up add a quart of ATF (yes you read correct, automatic transmission fluid) to the fuel. If it doesen't clear up within a few miles (maybe 20), add another quart. Again, don't ask me how it works, but it worked for me for the same problem. A friend from a local diesel injection shop reccomended it and it worked.

 

[JBurghard]

Not to knock an idea but has anyone else heard about or actually put ATF in your fuel tank?



Sorry gotta ask.

 

[TKingsbury]

I've heard of it. Alot of fleets in days-gone-by used to mix their used motor oil in with the fuel. I don't know if it was supposed to be good for the engine but in the days when everyone just dumped old oil on the ground why else would they have done it? My thought on the ATF is this There is alot of detergent in ATF so if you mix it with anything it will get clean. ATF seems to be the cure all for everything automotive that is gummed up.

Travis. .