Archived Won't start...WHY!!!

[CCahill]

Heres what happened... . Drivin' down the road. . felt like somebody just reached over and turned the key off... Had AAA tow it to my shop... the engine cranks over like crazy..... just like it had run out of fuel... . won't fire a bit. Replaced the fuel filter and primed system with the lift pump(bumped starter severel times to fill system with fuel). No fire. Checked pressure at banjo before fuel filter. . Reads 10/12 lbs, checked pressure at fuel pump banjo, and it reads the same... cracked the line at #1 injector and cranked engine, some fuel comes out... . so it sound like I have fuel to cyl..... Heres the rub... . somtimes I get 12#'s pressure at both places, sometime I get 20# on the gauge at both places. . plus the lift pump will make a different "noise" at the 2 different readings... . Could I have another defective lift pump??? If so why am I getting the pressure readings that I have... . we have all seen defective lift pumps that put out near zreo, and the truck will still run... Is the pressure reading I get mostly air, where is the air coming from then,. . I see no leaks whatsoever...

Heres my truck

01 w/DTT trans

Stage 2 injectors

Edge Comp (always on 2

Big Ass air filter

1/3 tank of fuel

appx 50 K miles

This truck has always fired on the first kick... . I'm hurtin' bad... I love, and need this truck to start. . :{ , please, any info you can throw at me will be appreciated. .

Colin

 

[V6power87]

Colin,



I had a LP go bad on my truck and had NO pressure at 14,000 miles... ... I drove around for who knows how long like that until I checked the pressure just for the hell of it.



So, I doubt it could be the LP.

 

[Sticks]

I would crack open the 1,3,4,5 injector lines to make sure you are getting fuel through all of them. Cycle the pump several times to make sure that there is not an air bubble in there somewhere.



Chase all of your fuel lines from the tank to the VP to make sure they are all snug, and there are no breaks, cuts, or other damage.



Check your air hoses from the turbo to the horn on the head for connection, and the lower boots to make sure they are not torn.



If you are getting fuel at the injectors, that rules out the VP44 as being bad.



Just for the entertainment, pull your air cleaner hose and have a look at your turbo compressor blades. Check for damage, free wheeling and shaft play.



I'm out of ideas.



Maybe throttle position sensor? Have you done the cycle the key in the ignition thing to check for codes?

 

[Bob Wagner]

check the fuses



I just popped fuse #13 and the truck died and would not restart



just a heads up

 

[Futures1]

Bummer;

Don't know much about the 2001, does it have the same type of fuel selonoid as the earlier B5. 9 ?? Looking in my Cummins book, it lists several possible causes for your problem.

1. is no fuel in supply tank.

2. is fuel shut off (electrical or manual) not open.

2b. says to check for loose wires and verify that the valve is functionong. Also, check to be sure that the manual shutoff lever is in the run position. (It goes into detail about checking the connector with the black, red and white wires, also the wires running to the solenoid and batt. ,

i believe that there is also a fusable wire/link in there someplace... ??

3. Fuel transfer pump malfunctioning

4. Fuel inlet or fuel filter restriction

5. Excessive water in the fuel filter <<

6. Intake and/or exhaust system restricted.

7. Fuel inj. pump not getting fuel or, air in fuel.

8. Fuel return restriction excessive.

9. Fuel pump return overflow valve is malfunctioning.

10. Fuel injection pump timing is not correct.

The above are for engines with no exhaust smoke showing !!

There is another set for "Exhaust smoke showing" .

I also have the detailed fixes for each of these problems here in the book and will be happy to read them off to you if you want to give me a call, etc.

Again, don't know if this pertains to your engine ?? If you have the CPL, (on the engine plate), I can check in the book for it !!



Dick S.

 

[dcamilleri]

Check the injection pump relay for power. In my 2001 to chevy suburban swap I have had the engine quit on me 4 different times, each time it goes totally dead. I have traced the problem to the fuel injection pump relay. In my case letting it sit for several minutes would allow the relay to start working again. If you find the relay is working then check the connectors to the vp 44. It needs power to run. Good luck.

 

[HeberRam]

Sorry to tell you this bud, I believe you just lost your first VP-44 injection pump.



Steve

 

[kaffine krazed]

First off cycle the ignition switch 3 times from on to off ending in on and watch the odometer window for codes. If no codes are present then Pdone will be displayed



If no codes are present



How do you know you have 1/3 of a tank?





I'm assumming that you have banjo bolts with schrader valves bump the starter then go and press the schrader valve at the filter housing and see if you are getting air coming out. Then do the same thing at the injection pump.



If you are getting fuel with no air at the filter and vp-44 then crack more injector lines.

 

[Rattler]

My truck did the same thing a year ago. I stopped for fuel and it would not restart. I bled everything on the truck while sitting at the fuel island, still no start. Had to have it towed home. I worked with it the next morning for a while and it finally started. It was hard to start for a couple of weeks but finally cleared up. (i changed filter and lift pump the day after it quit). No codes were set in the computer at the time. I believe the computer just had a brain fart.

 

[zack_76401]

what about the relay? just an idea

 

[CCahill]

Heres where it sits...

This morning, I played with it some more... checked pressure readings,still same at bump start, 12#'s

checked the relays again, did a switchout with a known good one,. . at one time it ran, started at part throttle, and ran till I shut it off..... then no restart. ... later today I went to the Cummins dealer man, and picked up the newest, and only lift pump. So all the way home, I'm thinkin'. . install pump (4 min), and be on my way... . no such luck. . same exact symptons.



did run a coupla times today but stalled on it's own...

I did check the fuse # 13 . . thanks Bob



I did get 2 codes today, 1693... . a nothing companion code,

and 1687... that is interesting, it pertains to instrument panel ??



I don't want to take this to the dealer.....



Thanks for all your suggestions. .

Colin

 

[CCahill]

Last call!





I worked on it again yesterday... . checked every thing again that was related to a fuel problem... Nothing seems amiss... . the mystery to me is that I am getting fuel to the injectors, but it kicks over like you took all the "plugs" out... . I'm thinkin' now it's not a fuel problem, buy something electrical... . I do have an Isspro timer on it... before I take it to the dealer, I'll disarm that and try it again. . then I have to start pulling my Comp box off, and get it ready for the tow :{



Thanks again for all your suggestions. .

Colin



Thinkin' about racing my Cummins powered mower in the Racing Mower class

 

[Sregorb]

sorry to hear the truck is down... Please keep us informed on what they find!!!



Brian

 

[cotto]

Sorry to hear about the situation. After reading all your postings I didn't notice if you had tested your fuel shut-off solenoid. I might have missed it. I'm kind of a rookie, but the same thing happened to my '93. I was driving down the freeway and my truck just died. It too would turn over like it had no plugs, but wouldn’t start again. I manually primed it on the side of the road. Had a full filter, but still nothing. Finally had it towed and repaired. It was the fuel shut-off solenoid. It’s a stupid little part that might be letting enough fuel (and air) through to look as though each injector is getting fuel. But it might not be opening up enough to allow for unrestricted flow. It shouldn't happen to such a new truck, but you might have just got a defective solenoid. Keep us posted. And good luck.



Cotto

 

[Andy Redmond]

I've observed AWOL VP44's that will exhibit the above symptoms and still dribble fuel at the injector, when the line is loosened.



Sounds like a trip to a shop with a Cummins pump tester, and a scanner may help diagnose your prob.



Maybe you'll get lucky and it be something simple and the ole injection pump be alright.



Good luck,

Andy