Stranded on an exit ramp - Stop Engine and ABS lights

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Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #200 – June 26, 2023, 09:53:03 am

Okay, I can see about cleaning the inside of that fuse holder too. I also found that I had mistakenly selected the wrong comm channel on silverleaf so that's working again.

After I posted the last message - The hiccup happened again at about 38 min. Voltage drop like a quick flutter and then back on again. I turned the coach off. Then restarted it. I'm at 20 minutes again with no stop engine and no alarm. So weird... So confused...

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #201 – June 26, 2023, 11:38:15 am

Quote from: Walkerfam7 – June 26, 2023, 09:53:03 am

Okay, I can see about cleaning the inside of that fuse holder too.

Based on the picture as to how bad the blades looked I would say even with a new fuse you could still be having a bad connection. You might try removing and re installing the fuse a number of times to see if that will clear up the contacts in holder. You do not want to make the contacts in the fuse holder loose. Or are they already loose? Does the other fuse blades look just as bad? If so that could also be part of your problem. Might need to replace both fuse holders.

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #202 – June 27, 2023, 03:02:02 pm

I got some new fuse holders from Napa and replaced those. You were right, I didn't realize how loose the old holders were. However, the engine glitch or flutter that happens is still happening. Engine seems to be running just fine. I've got a guy coming by tonight who has a diagnostic that can read our rig. I was also surprised to find out that that most of these mechanic shops around don't have anything that will read an OBD1.

OBD1 vs OBD2: What Nobody Told You Before - OBD Advisor

Something else new that I've learned. With a '95 even the Cummins service center near me doesn't have an OBD1.

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #203 – June 27, 2023, 07:39:01 pm

The rules for OBD cars a light trucks are different for those relating to HD vehicles with a GVVR of more than 14000 pounds. Automotive scanners do not work on HD vehicles. Federal regulations for HD OBD went into effect in 2010. Prior to that I believe the diagnostic software code was proprietary to the engine manufacturers.
Any Cummins dealer should have tools to interrogate the ecm's on any of their electronic engines like Celect, Celect+, ISM, ISX, Etc.
OBD one and two relate to vehicles under 14000 pounds GVWR.
At least this how I understand it.

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #204 – June 27, 2023, 09:50:55 pm

Quote from: Walkerfam7 – June 26, 2023, 09:22:03 am

So, I discovered in the cummins manual that I had only found 1 of the fuse holders near the ECM when we were on the side of the road. Yesterday I found the other one and the fuse was broken (see pic). I put a new one in.

I seem to remember someone earlier calling this fuse location a PITA. I agree. Engine is starting good. Running at 14.2v. I've had the engine running for about thirty minutes now with no problems today. However, yesterday, after I put the new fuse in, I ran it for a bit and would get these occasional "hiccups" where the engine shutdown light would come on - then throw on the alarm - then the stop engine light would come on - then the engine shutdown light would turn back off and everything would be running just fine with the exception of the now stop engine light on and the lovely alarm.

We had this happen when the key ignition was just at the first turn and the engine wasn't running too. Like, all these clicks would throw the same sequence even when the engine wasn't on. That made me think that something is going on with the ecm. There are now no codes on the transmission box.

I figured it's safe to drive to a shop where I can have a real diagnostic tool run the codes for me and for some reason even thought maybe the codes that were saying low voltage now just need to be cleared. I also noticed that my silverleaf stopped communicating this morning.

Silverleaf wouldn't be causing any of this would it?

Also, about four years ago I felt like I was having problems starting the coach and when I got new keys made that seemed to alleviate those problems. So I thought to ask - the key ignition wouldn't potentially be a cause would it?

You have induced a ton of low voltage codes. Silverleaf may of become victim to this also, unknown? That is a stupid key, no electronics in it. You can order new GM key tumbler and separately ignition switch. Amazon is ready to ship. That fuse does look like its had a troubled life. On the end of it is two exposed tabs and voltage can be read on both sides easily. Glad you're getting ahead. I would think a good scan tool will read and reset codes and give you a clean slate.

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #205 – June 27, 2023, 09:55:47 pm

Hot wire the ignition switch .

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #206 – June 29, 2023, 08:25:05 am

okay, here's where I am at now. I had a guy come in and read the diagnostics from the obd1. It's nice to have that diagnostics be so detailed and exact. Came up that those fuses were causing the problems. However, I'm still getting the shutdown flutter thing even after he cleared the codes.

Next step that I've been encouraged to do is to get the fuel tested for algae and change out the fuel filters (which I planned to do anyhow but I just wasn't able to get the coach to a place to do that up until now). He thinks that maybe the fuel is throwing the alert to the ecm that there is low voltage because something could be clogged. But even then, he was seeing that the fuel pressure on the diagnostic was good. Then he said, that it's a good chance that the ECM might be simply failing.

At this point, if I need to replace the ECM - is there a less expensive option than the OEM from Cummins?

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #207 – June 29, 2023, 08:35:52 am

Keith Risch in Nacogdoches can polish your fuel. He correctly pumps the tank empty and triple filters the fuel putting back in. It will be clean. All the best as you sort it out

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #208 – June 29, 2023, 08:56:05 am

Quote from: Walkerfam7 – June 29, 2023, 08:25:05 am

okay, here's where I am at now. I had a guy come in and read the diagnostics from the obd1. It's nice to have that diagnostics be so detailed and exact. Came up that those fuses were causing the problems. However, I'm still getting the shutdown flutter thing even after he cleared the codes.

Next step that I've been encouraged to do is to get the fuel tested for algae and change out the fuel filters (which I planned to do anyhow but I just wasn't able to get the coach to a place to do that up until now). He thinks that maybe the fuel is throwing the alert to the ecm that there is low voltage because something could be clogged. But even then, he was seeing that the fuel pressure on the diagnostic was good. Then he said, that it's a good chance that the ECM might be simply failing.

At this point, if I need to replace the ECM - is there a less expensive option than the OEM from Cummins?

So I have replaced my ECM do to a platform failure when I bought my coach. All these advertised rebuilders are not. They reflash the ones they can. They cant repair. Mine has like 980K on it and has worked flawlessly and has a lifetime warrenty if they are still in business and I personally doubt they are. I have found that cummins China does build new ECMs. I know nothing about them , but have contacted them and have been assured they can sell me a new updated ECM that will be programmed for my coach. WHO KNOWS the truth. Definitely do the homework on the revised part numbers and a call to cummins to validate. Good luck
Programmed Fits Cummins ECM Engine Computer Module 3408501 | eBay

Definitely have your rear axle gear ratio, tire size, transmission model. I put a speed limiter in my for 80mph. May be more info too.

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #209 – June 29, 2023, 09:00:51 am

ECU King in Santa Fe TX can rebuild the ECU. My 1995 M11 needed both boards rebuilt. Worked great. 409/927-1900

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #210 – June 29, 2023, 09:25:46 am

Next step on the fuel system is to replace the fuel filters.

Then, take a saw and open up the primary fuel filter. That will tell you if you have a problem.

Yes, fuel polishing is the solution if you have a significant contamination problem.

If not that bad, just keep on hand several sets of fuel filters and replace as needed. That is the "automatic" way to polish fuel.

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #211 – June 29, 2023, 05:44:34 pm

Fuel will not shut off and come back on. It will simply slow down and stop.
Voltage supply to ECU, needs to be verified steady. Probe the supply and ground, At the ECU and watch as you run the engine .

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #212 – June 29, 2023, 08:37:26 pm

Thanks everyone. Learning so much here. I dropped my coach off with the cummins dealer and just simply told them I want a Preventative Maintenance. The service manager was super kind and told me that I probably didn't want his guys poking around trying to figure out what's wrong and I agreed. He said most of them were in diapers when this engine was coming off the line. He also gave me the number to a retired gentleman that worked there on cummins for twenty years before he left to start his own business specifically on electrical diagnosis on Detroits and Cummins. He's pretty awesome. Old. Knows his stuff. I spend about a half hour on the phone with him. Felt like I was talking to you all. So the plan is, once I get the coach back from just the PM I'll give him a call. I'm anticipating that the problem with still be there (I have learned not get my hopes up unless I absolutely know that the problem is fixed). Anyways, his name is Tim Williams servicing central and northern Virginia with Diagnosis Tech. I feel pretty good about this so far. I'll keep you posted.

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #213 – June 29, 2023, 08:39:19 pm

I just felt to add that when I said he's Old - it's a term of endearment for me. And I meant that for all of you as well. Thanks

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #214 – June 29, 2023, 09:18:50 pm

Think you should have gotten on the same page with him on what a preventave maintenance is,oil change?,valve adjustment?
compression test?their version and yours may not be the same,hate to see you spend money for no reason,probably dozens of versions out there.

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #215 – July 05, 2023, 12:13:39 pm

Okay, here's where we are now. I'd love some advice:

It's time for us to purchase an ECM. We have considered some different options. Looked at Module Experts in Jacksonville, FL where we could get one for $2200 and then send the old one to them and get $600 back. But the reviews are horrible on this place.

We'd consider getting an ECM from China, as was posted on another thread, but we are probably leaning towards not trying to cut corners and just getting the OEM even though it's more expensive we feel a peace that this option would involve less of a possibility on being scammed.

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #216 – July 05, 2023, 12:32:42 pm

Have you checked with ECM King that is referenced in reply 209.

Mike

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #217 – July 06, 2023, 12:00:11 pm

Just spoke with ECM Kings - said if they could not get it to act up he would send another ecm. If still had problem you could return the replacement with a restocking fee. The ecm would be 1200.00 plus 400.00 core charge. 1 year warranty.

I'd say that's pretty good. We have the ECM off now and are about to ship it out to them. Stay tuned.

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #218 – July 06, 2023, 05:34:39 pm

Did you ever verify the power and ground at the ecu. ?
Could be as simple as a Ignition switch or run relay . The bouncing voltage indicates a power source issue.

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #219 – July 08, 2023, 08:34:35 am

Quote from: Protech Racing – July 06, 2023, 05:34:39 pm

Did you ever verify the power and ground at the ecu. ?
Could be as simple as a Ignition switch or run relay . The bouncing voltage indicates a power source issue.

Yes. The guy helping us checked that. We are now having trouble getting ECU King to return our phone calls so that we can send the part in. It's been two full days of calling without a call returned. If we don't hear back from them by Monday we will have to go with a different option.

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #220 – July 09, 2023, 04:19:39 pm

I mentioned this place a few pages ago. Midwest ECM Repair-Cummins reman. ECMs

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #221 – July 09, 2023, 07:40:20 pm

Quote from: Walkerfam7 – July 08, 2023, 08:34:35 am

Yes. The guy helping us checked that. We are now having trouble getting ECU King to return our phone calls so that we can send the part in. It's been two full days of calling without a call returned. If we don't hear back from them by Monday we will have to go with a different option.

Business must be good to just simply ignore customers. Best of luck to you.

Re: Stranded on an exit ramp - Stop Engine and ABS lights

Reply #222 – July 12, 2023, 05:13:04 pm

Ladies and Gentlemen, we have a working RV again. We did end up getting ahold of ECM Kings and they were great. We sent our old ECM in and had them ship us one as well. $1200 for the ECM and $450 core charge so if everything comes back good or fixable on that ECM we sent them we're not out as much $. Probably the best deal for what we have seen.

Also, the technician that did the work was really great too. $100/hr verses the $240/hr cummins would have charged.

DiagniosTECH, LLC. - Tim Williams - ‭(540) 324-5510‬

Thank you all for such wonderful help. As always - we are so grateful for this community.

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