Lost power stuck roadside

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Lost power stuck roadside

May 19, 2022, 07:49:04 pm

Drove the coach 2 months ago. Left today to go away for the weekend. Got about 40 miles away and check engine starts dinging. Started to lose power. I made it halfway off the freeway off ramp in Riverside, CA.

I changed both fuel filters but could not get it started. I connected my laptop with Silverleaf and read codes:

SRC TPE ID MD COMPONENT MODE MM/DD/YY HH:MM
=============================================================================
ABS SID 231 5 SAE J1939 Data Link Low Current 5/19/22 14:41
ENG SID 18 7 Fuel Control Valve Not Responding 5/19/22 14:43
ENG SPN 633 7 Injector Valve Not Responding 5/19/22 14:43
ENG SPN 633 7 Injector Valve Not Responding 5/19/22 16:30
ENG SID 18 7 Fuel Control Valve Not Responding 5/19/22 16:30

My wife says we pulled off at 14:30 so 14:41 must have been me trying to restart it before I changed the filters. Any opinions as to whether I should keep attempting to prime and start it or are those codes evidence of a larger problem. I'm not in a great position on a pretty decent slope on the offramp.

It is an ISL 400.

I would appreciate any suggestions

Re: Lost power stuck roadside

Reply #1 – May 19, 2022, 07:57:34 pm

Since the codes indicate the fuel system, that's where I would look and the filters would be at the top of the list. Do you have a sight glass in your primary fuel filter?

Pierce

Re: Lost power stuck roadside

Reply #2 – May 19, 2022, 08:01:38 pm

I got both filters changed. It did look like some small black particles drained out. I have fuel to both filters when unscrewing drain valve. I can also feel pressure on the priming pump button.

Re: Lost power stuck roadside

Reply #3 – May 19, 2022, 08:13:10 pm

Any smoke from the exhaust when cranking?

Re: Lost power stuck roadside

Reply #4 – May 19, 2022, 08:15:38 pm

No it was not smoking.

Re: Lost power stuck roadside

Reply #5 – May 19, 2022, 08:23:24 pm

Nothing out of exhaust when cranking

Re: Lost power stuck roadside

Reply #6 – May 19, 2022, 08:24:42 pm

Do you have oil pressure when cranking?

Can you hear a fuel pump run when you turn ignition on?

Re: Lost power stuck roadside

Reply #7 – May 19, 2022, 08:29:11 pm

Question to the group: What is the "fuel control valve" on the ISL400?

Google found the thread linked below, where the "fuel control valve" enters into the discussion. Note the posts by our own Brett Wolfe.

https://www.irv2.com/forums/f123/2003-safari-quit-while-driving-577128.html

Re: Lost power stuck roadside

Reply #8 – May 19, 2022, 08:43:28 pm

yes there is oil pressure when cranking. I do hear a sound that I believe is the fuel pump when the key is turned on.

Re: Lost power stuck roadside

Reply #9 – May 19, 2022, 09:19:11 pm

You may try to run the gen set and boost to verify enough voltage . Rule it out .

Re: Lost power stuck roadside

Reply #10 – May 19, 2022, 09:34:21 pm

Do you have the air purge? If so, how many times did you run it? Changing both fuel filters, I'd run it at least 3 times. I don't believe it can hurt to run it more.

The control valve code though...sounds like a fuel pump issue.

Re: Lost power stuck roadside

Reply #11 – May 19, 2022, 10:03:56 pm

Owner of the shop that did my cylinder head work 2 years ago said it is likely not a roadside fix. Possibly fuel pump or ECU is his first guess.
I'm arranging to be towed now. It's going to have to be part 1 tonight and part 2 tomorrow to the shop.

So it sounds like pull the axle shafts is the recommended action instead of the driveshaft. Is that correct?

Re: Lost power stuck roadside

Reply #12 – May 19, 2022, 10:16:55 pm

Yes that is what I would do, Pull the axle shafts, ask the towing company to bring axle caps, so the lube don't run out with axles pulled. It's a plastic disc to cover the hole, If they insist to pull the driveline make sure they mark it, so when it's put back together it will be in phase.

Re: Lost power stuck roadside

Reply #13 – May 19, 2022, 10:53:50 pm

My son is a diesel mechanic, his best guess is the fuel control valve located on the pump is bad or the electrical connection is bad, the FCV maintains the common rail pressure. (the code you posted is a generic code, a Cummins code reader will be more percise and point you to the problem) At least your close to home.

Re: Lost power stuck roadside

Reply #14 – May 20, 2022, 07:40:45 am

Well AAA left me without a tow last night. At least my wife and the dogs got picked up and spent the night at home. I've got to work on securing a tow early this morning.

Other than the risk of So Cal freeways, is there any concerns with towing 50 miles as opposed to 10?

Re: Lost power stuck roadside

Reply #15 – May 20, 2022, 07:45:21 am

Quote from: bpal – May 20, 2022, 07:40:45 am

, is there any concerns with towing 50 miles as opposed to 10?

Once you pull either the drive shaft or axles no difference in milage.

Mike

Re: Lost power stuck roadside

Reply #16 – May 20, 2022, 08:35:08 am

Quote from: bpal – May 20, 2022, 07:40:45 am

I've got to work on securing a tow early this morning.

Other than the risk of So Cal freeways, is there any concerns with towing 50 miles as opposed to 10?

When calling around you may want to ask about flatbed- Landoll trailer for towing, that would be best.

Re: Lost power stuck roadside

Reply #17 – May 20, 2022, 08:52:37 am

Quote from: Doug W. – May 20, 2022, 08:35:08 am

When calling around you may want to ask about flatbed/lowboy trailer for towing, that would be best.

On a trailer the height cannot exceed 13'6" so usually they will tow by cradle. Mine towed easily.

Re: Lost power stuck roadside

Reply #18 – May 20, 2022, 10:12:53 am

If you don't get a low-boy, make sure the tow driver understands that you have THREE air tanks. One for front brakes, one for back brakes, and one that is the wet tank. You want him to supply air to the wet tank, which is at the back of your coach near the drive axle. The other two are near the front axle. Some of those guys aren't used to seeing coaches like ours and may mistakenly try to hook up to one of the front tanks.

There is likely an airline coming from the wet tank to a valve in front of the rear driver's side tire, right on the bottom of the fender. He can hook up to that. Run the airline from his tow truck along the driver's side of the coach and zip tie it to your awning hooks. There are further directions for towing on a plate inside the coach, near the driver's left knee.

Re: Lost power stuck roadside

Reply #19 – May 20, 2022, 11:55:07 am

Quick question: when towing does he have to pull both sides axle shafts or only one?

Re: Lost power stuck roadside

Reply #20 – May 20, 2022, 12:11:40 pm

Both is recommended.

Re: Lost power stuck roadside

Reply #21 – May 20, 2022, 12:36:42 pm

You have too do both and axel covers are need to keep the oil in.
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Re: Lost power stuck roadside

Reply #22 – May 20, 2022, 01:12:27 pm

A good tow driver will have the axle covers. Call and confirm with them before they leave the shop.

Re: Lost power stuck roadside

Reply #23 – May 20, 2022, 01:16:55 pm

Quote from: bpal – May 20, 2022, 11:55:07 am

Quick question: when towing does he have to pull both sides axle shafts or only one?

Both sides are mandatory as the spider gears will really spin up with only one side pulled and they have plain bearings, not ball/roller. I called Dana-Spicer when this topic came up a couple of years ago and their engineering dept said damage could easily occur and may not surface for thousands of miles.

Axle caps are less than $40/set so good to have on board.

Pierce

Re: Lost power stuck roadside

Reply #24 – May 20, 2022, 09:18:31 pm

Got it towed ok this morning. Driver/tech was very diligent about everything. Will find out on Monday what the issue is.

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