[ratwell71]

When my fuel sensor went out it did not log any codes. It ran crappy for several months. Then it died a couple of times when I would stop. Almost like it lost its prime. So I had a mobile unit come out with a new fuel filter thinking that this was the problem. I had water in my tanks from a fuel stop prior and thought it possibly messed up my fuel filter. Had experience with this before and thought it was surely the problem. Nope. So then I had it towed. $500 plus dollars later they told me they had to replace all my batteries and the fuel sensor.

[fawazbarraj]

Yeas It Does Give Some Fault Codes .....But No Check Engine Light.

[ratwell71]

The fuel sensor for my truck if I remember correctly was around $150. And it just screws in like a spark plug.

I would go with what Dave said and have a voltage test done on your fuel pump.

[ratwell71]

Originally Posted by fawazbarraj

Yeas It Does Give Some Fault Codes .....But No Check Engine Light.

The mechanic should be able to tell you what those faults are and from there hopefully go right to the problem.

[ratwell71]

Does it only do the surging when you have cruise control on?

Does it do it right after starting your truck without the cruise on?

If so, how long after you are idling does it surge?

[ratwell71]

Inline Type Injection Pump Troubleshooting

Turbochargers Troubleshooting

Has your truck lost power at all?

[greg334]

PLEASE what engine do you have?

If it is an ISC I can tell you what the problem may very well be.

[fawazbarraj]

Yes The Engine I Have Is ISC-315E...........It Start Surging 10 or 15 min after I Start The Engine at Normal Idle 800 RPM .....however It Dose Not Surge While Driving Or When The Cruse Control Is On......If I Shut The engine Off For 10 or 15 min
Then Start It again It Will Run smoothly For 10 Min The Start surging again.

[fawazbarraj]

For Greg334 Yes Its An Ics Engine................please Tell Me What Do You Know About This Issue.

Thanks.

[greg334]

Originally Posted by fawazbarraj

For Greg334 Yes Its An Ics Engine................please Tell Me What Do You Know About This Issue.

Thanks.

Sent you a PM to answer your PM, I was making supper just after I posted.

[davekc]

Really need to know specifically what the fault codes are.
If the ending number is a 31 or 32 of the code, it is a voltage irregularity at the fuel pump. If that tests ok, then it is at one of the wires for one (not all) one of the injectors. Could be a broken wire or poor connection.
If the codes jump numbers in a tight sequence, it is the speed sensor or a program fault with the ECM
If all of this is ok, refer back to my original post.

[ratwell71]

Originally Posted by fawazbarraj

For Greg334 Yes Its An Ics Engine................please Tell Me What Do You Know About This Issue.

Thanks.

If it works please let us know. Thanks...

[ratwell71]

Originally Posted by davekc

Really need to know specifically what the fault codes are.
If the ending number is a 31 or 32 of the code, it is a voltage irregularity at the fuel pump. If that tests ok, then it is at one of the wires for one (not all) one of the injectors. Could be a broken wire or poor connection.
If the codes jump numbers in a tight sequence, it is the speed sensor or a program fault with the ECM
If all of this is ok, refer back to my original post.

Good advice. I am curious to what the codes are.

[greg334]

Sorry, I was working though my email and really didn't think to add it here.

Well here is the deal, this may be the problem.

Sometime during the production run of the 1998 to 2002 engines, there was an 'upgrade' kit that was used on the cabling to the fuel pressure sensor. If you have that 'upgrade' kit, then you can follow the cable from the fuel sensor to the ECM harness and it will have a splice in it. The splice is the problem because in many of the kits they used plain crimp on butt connectors with no sealant.

I think I was in Atlanta or maybe Florida when my truck idled so badly that I could not keep it idling without feeling it was going to drop a valve. It surged, it dropped in idle and all the stuff that makes one worry. So I bought a years subscription to the Cummins tech website (I don't have the link but if I find it I will send it to you) and went through everything. I found the info about the kit and thought well if it was installed, then that is where I would start. Sure enough the second I cut the tie wraps, it ran great. Messed with the wires at the splice, it started to act up again.

Now I understand that some engines had the new harness already in 2000 but every ISC I seen up to 2002 had the kit or needed it.

The last paragraph sounds confusing because I forgot to add that I remember that Cummins tried to found a solution to the problem with stationary engines when they discovered the issue hence the reason some don't need the kit in 2000 (added to the original PM text).

[Mcarriers]

Wow our truck does the same thing. It sounds like it's a big block with a big cam, it really is annoying. Never acts up while running down the road just when you stop at lights or anything like that. We'll have to check out Greg's info hopefully it'll fix it. This is our 01 KW w/315 ISC