Stranded on an exit ramp - Stop Engine and ABS lights

Topic: Stranded on an exit ramp - Stop Engine and ABS lights (Read 5263 times) previous topic - next topic

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

Reply #25 – June 11, 2023, 02:37:44 pm

So, for those wondering whether the engine is mechanical or ÉCU controlled, maybe the engine serial number might help to know what we've got. We honestly don't know. Serial #347 302 70 Engine Family: RCE661EJDARW Model M11 400

We are cleaning off some battery terminals on the starter batteries right now. We are getting full voltage at the ignition solenoid but 0 on voltage at the starter solenoid. So, trying to figure that out. My husband cleaned up a lot of things but didn't clean the starter battery terminals because he thought they looked okay. But here we are now cleaning them on the side of the road 😂

If anyone else gets an idea, keep ''em coming! Thanks for the help everyone

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

Reply #26 – June 11, 2023, 02:54:23 pm

I think all M11 have have an ECU. You need to have the black tank filled above the sensor. If you
lift the bed there will be 2 solenoids one is the boost and the other is for the starter. If you know
how to jump a solenoid do that and that will bypass all safeties.

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

Reply #27 – June 11, 2023, 03:02:16 pm

Quote from: oldguy – June 11, 2023, 02:54:23 pm

I think all M11 have have an ECU. You need to have the black tank filled above the sensor. If you
lift the bed there will be 2 solenoids one is the boost and the other is for the starter. If you know
how to jump a solenoid do that and that will bypass all safeties.

A couple of times now the rig has started but our alarm continues along with the stop engine and ABS brake light. And then within less than a minute the whole rig just shuts down. So there is something that is just shutting it down every time and keeping it from starting at all at other times. We try to start it and it sounds like it's trying to but it won't fully start.

Where exactly is the sensor in the black tank because it's filled up to where we can see the level in the pour spout.

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

Reply #28 – June 11, 2023, 03:43:02 pm

There was a module on the passengers side of the engine on my 1995 U320 M11 engine.

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

Reply #29 – June 11, 2023, 03:46:52 pm

Are you on a slope? If so you may have the fuel level low. See if generator will run to verify level. I killed my engine once on a steep driveway and had get fuel a gallon at a time to get about 5 more gallons in to get all running again.

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

Reply #30 – June 11, 2023, 03:49:04 pm

The sensor is near the bottom of the tank so coolant isn't your problem.

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

Reply #31 – June 11, 2023, 03:49:22 pm

Quote from: Herb Stark – June 11, 2023, 03:46:52 pm

Are you on a slope? If so you may have the fuel level low. See if generator will run to verify level. I killed my engine once on a steep driveway and had get fuel a gallon at a time to get about 5 more gallons in to get all running again.

Interesting. Nope. We aren't on a slope. We are driving pretty flat roads and our gas tank is full.

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

Reply #32 – June 11, 2023, 03:52:35 pm

To address a couple of posts, the 1995 U300/U320 are unique in that three different drivetrains were used that one year:

Early: Detroit Diesel 6V92 two stroke and 4 speed Allison
Mid: Caterpillar 3176 and Allison 6 speed
Later: Cummins M11 and Allison 6 speed

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

Reply #33 – June 11, 2023, 03:54:15 pm

Battery cables are a little "sus". Could this be our issue that would allow a start but send off alarms and then shut down?

ETA: my pictures don't seem to be working :/

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

Reply #34 – June 11, 2023, 03:59:49 pm

Right after trying to start if you go back and put your hands on the cables and ends, if something is
warmer than the rest that is probably the problem.

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

Reply #35 – June 11, 2023, 04:04:12 pm

Quote from: Walkerfam7 – June 11, 2023, 03:54:15 pm

Battery cables are a little "sus". Could this be our issue that would allow a start but send off alarms and then shut down?

ETA: my pictures don't seem to be working :/

Not sure what "sus" is, but:

The result of poor voltage/voltage fluctuations could lead to endless issues.

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

Reply #36 – June 11, 2023, 04:06:22 pm

Quote from: Walkerfam7 – June 11, 2023, 03:54:15 pm

Battery cables are a little "sus". Could this be our issue that would allow a start but send off alarms and then shut down?

ETA: my pictures don't seem to be working :/

Yes.... Mentioned earlier,

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

Reply #37 – June 11, 2023, 04:11:48 pm

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

Reply #38 – June 11, 2023, 04:13:18 pm

Where can I even get a replacement for this cable? I am going to be so sad if we have to get a tow simply because of a battery cable.

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

Reply #39 – June 11, 2023, 04:14:37 pm

WE did try the boost as well, but the alarm continues and the engine still shuts off after a short bit, so we can't even get down the road a little bit.

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

Reply #40 – June 11, 2023, 04:21:20 pm

Quote from: Walkerfam7 – June 11, 2023, 04:14:37 pm

WE did try the boost as well, but the alarm continues and the engine still shuts off after a short bit, so we can't even get down the road a little bit.

Now that this is all said, and you've checked the usual stuff: Your engine is still safety'd out to keep you from doing your engine harm.

What time is the mobil mechanic expected to arrive?

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

Reply #41 – June 11, 2023, 04:24:19 pm

Quote from: Walkerfam7 – June 11, 2023, 04:13:18 pm

Where can I even get a replacement for this cable? I am going to be so sad if we have to get a tow simply because of a battery cable.

Same thing happened to me. Take it to an Napa or o'reiley and they can make you one

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

Reply #42 – June 11, 2023, 04:25:04 pm

Not getting sufficient voltage

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

Reply #43 – June 11, 2023, 04:31:29 pm

I melted the main positive cable terminal on our U300 in Yellowstone in subfreezing weather. I used a pair of vicegrips to clamp the bad terminal to the cable and got it running. That and a pair of HD jumper cables can work wonders. Make sure to charge your batteries at the same time with the generator and boost switch on. If you get it fired up, leave the generator running until you can get to a place to make a repair. NAPA may be able to put a set of cables together for you in a few minutes, especially if they have truck parts.

Pierce

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

Reply #44 – June 11, 2023, 04:35:23 pm

If you do have a low coolant sensor, you may have to have the proper level above the sensor or the engine many only run for 30 seconds and shut down to protect itself.

Pierce

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

Reply #45 – June 11, 2023, 04:35:34 pm

Immediate emergency way to crank engine is to put 12volts on Aux Start Solenoid small wire connector. Better to remove existing small wire before jumping from any 12v source to prevent backfeed. This solenoid is usually located on isolator panel next to boost solenoid. Another way is to put 12 volts on starter's solenoid small wire post, usually located on top of starter.

Everyone should be aware of this engine crank method. This can get coach moving when problems exist with ignition switch, ignition relay, transmission neutral-start relay, etc.

If this coach has C8.3 engine it may be required to also cable tie the fuel shutoff solenoid in up position.

Good luck

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

Reply #46 – June 11, 2023, 04:37:02 pm

Quote from: Walkerfam7 – June 11, 2023, 04:13:18 pm

Where can I even get a replacement for this cable?

You can cobble together a replacement for that cable using readily available parts from most auto parts stores. Look for battery terminals that have a bolt, to which you can attach short battery cables.
See the links below for examples. Use your imagination!

This style would be best: https://www.oreillyauto.com/detail/c/super-start/super-start-zinc-bolt-type-universal-terminal/ss01/08808?q=military+battery+terminal&pos=2

This style would work: https://www.oreillyauto.com/detail/c/super-start/super-start-marine-battery-terminal-epoxy-coated/ss01/08507?q=military+battery+terminal&pos=12

https://www.oreillyauto.com/detail/c/super-start/battery---accessories/battery-cables---accessories--universal-/81ed6f7d4fc7/super-start-6-gauge-jumper-cables/ss01/04333?q=battery+cables+%26+accessories&pos=1

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

Reply #47 – June 11, 2023, 04:45:02 pm

Quote from: Pierce & Gaylie Stewart – June 11, 2023, 04:31:29 pm

I melted the main positive cable terminal on our U300 in Yellowstone in subfreezing weather. I used a pair of vicegrips to clamp the bad terminal to the cable and got it running. That and a pair of HD jumper cables can work wonders. Make sure to charge your batteries at the same time with the generator and boost switch on. If you get it fired up, leave the generator running until you can get to a place to make a repair. NAPA may be able to put a set of cables together for you in a few minutes, especially if they have truck parts.

Pierce

It seems this is something we are going to have to do. Unfortunately it's Sunday and half the stores aren't even open. We are talking to Advance which seems to be the only one open and they don't seem to make them. They are trying to help us trouble shoot. We don't even have vice grips.

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

Reply #48 – June 11, 2023, 04:47:35 pm

Quote from: Walkerfam7 – June 11, 2023, 04:45:02 pm

It seems this is something we are going to have to do. Unfortunately it's Sunday and half the stores aren't even open. We are talking to Advance which seems to be the only one open and they don't seem to make them. They are trying to help us trouble shoot. We don't even have vice grips.

Advance sells vice grips and other tools

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

Reply #49 – June 11, 2023, 04:48:00 pm

Quote from: Chuck & Jeannie – June 11, 2023, 04:37:02 pm

You can cobble together a replacement for that cable using readily available parts from most auto parts stores. Look for battery terminals that have a bolt, to which you can attach short battery cables.
See the links below for examples. Use your imagination!

https://www.oreillyauto.com/detail/c/super-start/super-start-zinc-bolt-type-universal-terminal/ss01/08808?q=military+battery+terminal&pos=2

https://www.oreillyauto.com/detail/c/super-start/super-start-marine-battery-terminal-epoxy-coated/ss01/08507?q=military+battery+terminal&pos=12

https://www.oreillyauto.com/detail/c/super-start/battery---accessories/battery-cables---accessories--universal-/81ed6f7d4fc7/super-start-6-gauge-jumper-cables/ss01/04333?q=battery+cables+%26+accessories&pos=

Yup. Combining multiple batteries is very common in a lot of applications-- golf carts, boats, RV's.

Main thing is to not try to diagnose all the electric "anomalies" until you have good solid voltage to the coach-- i.e. this battery issue fixed.

Also, battery boost solenoid is EASY to check to see if it is working: Boost switch off, one large lug will reflect chassis battery voltage, the other house battery voltage. Boost switch on and boost solenoid working, both large lugs will read the same, since its job is to make "one large battery bank from the two separate ones". If not working, try rapping on it with the plastic handle of a screw driver. OR, just remove one battery cable from one side of the boost solenoid and ADD IT to the other large lug. Now you have mechanically done exactly what the boost solenoid does with it is working.

OK with generator running and inverter/charger charging the house bank, that bank should be around 14 VDC. With boost working/worked around, the chassis battery side should be close to the same thing. Yes, if the chassis battery is deeply discharged, your inverter/charger panel will jump up to high amps. Normal. Wait until amps drop off to below 15 amps (volts still around 14) and try to start again.

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