[Archived]

I believe the reference is to Ray Davis’s iPad App for DDEC.

[TJ]

Information like that needs to be clarified because when a couple of thousand owners read it they will go crazy trying to find their coolant level gauge.

[Archived]

CLS = Coolant Level Sensor

[TJ]

Understand CLS.

The coolant level sensor is in the expansion tank and has to detect coolant at or above its level. It is essentially an on-off switch.

The coolant temperature sensor is measuring coolant temp and the reading from that is what DDEC sees as coolant temp. The two sensors are unrelated except each will send the signal to DDEC to shut you down.

[Andy]

John B ,

That is correct. I better be more specific or Jon will raise My dues ! The RV Dash by Ray Davis that will come up wireless on Your ipad. There is a Wi-Fi module that connects to the DDEC port. He developed it specifically for a Prevost with a series 60. I know several members here have them. Should I ever have a antifreeze leak ? Being able to see the coolant level creep down might just give Me enough warning to pull over and shut down before the engine gets hot enough to do considerable damage. Your discussions about not knowing the actual coolant level prompted My post about it. Thinking that it would be very helpful if the Gentleman with the coolant leak had one of these. There is a free app that You can download which has a demo mode that You can get and play with to see the different displays and information it will provide. It also has a Code reader function which is a bonus. Along with a lot of other information that was not available through the old Prevost gauges. Like Transmission RPM , Engine Load , Intake Manifold Temp, Fuel Temp , Air inlet Temp , Ambient Temp , Air inlet Pressure. Instaneous fuel economy ( MPG ) Instantaneous Fuel Rate ( G/ H ) , Average Fuel economy ( MPG )

Trip Distance, Fuel used on trip, True mileage reading from DDEC , And total engine Hours.

This is not for a Winnie Bagle

Safe travels,

Rocky

[Archived]

I seriously doubt if you will see the coolant level creep down.

Unless you have a special sensor that senses level your coolant level sensor is the input to that display and it is either enough or not enough coolant. When your engine warms the cooloant expands quite a bit, and conversely when it cools it shrinks or drops in the expansion tank. If you had a true coolant level sensor the needle would go up and down depending on what it considers a full tank and whether the coolant is hot or cold.

[Archived]

I agree with Jon. The sensor in the surge tank high on the back of the coach is a very simple ON or OFF arrangement.

Maybe Brian Stanton from American Fleet will jump in here and possibly enlighten us about “coolant level” of the Series 60 Detroit Diesel engine.

[Lars]

Jon ,

That might be right, But at least I will have 2 gauges should the old ones on the dash fail. And it looks cool on the ipad and is much easier for these old eyes to read.

You have to admit , The other additional features are desireable. Instant fuel economy info , Code reader , Etc, Etc……

Safe travels,

Rocky

[Bryan]

Like Rocky, I have the RVDash app. I did laugh a bit when I saw the coolant 100%, because I bet you a dime to dollar the other reading would be 0% if the coolant dropped below the sensor.

Also like Rocky, it’s a helluva lot easier to see than gauges on our XL’s, especially at night.

[Deleted User]

Hi Rocky and gang….

I am about 60 miles into PA on I-80.

So this is what I have tried, based on all your responses.

Its quite a few miles since I was in Bozeman. The check engine light comes on

30-40 min after hitting the road, the CLS WARNING comes up, and when I hit the info button

goes off. The CEL goes on and stays on most of the day.

Tank level always good. Temp without the fan locked up…ambient temp 80º,..

coolant 195º – 198º, oil temp 190º approx.

I will change the sensor which must be bad. BUT I have disconnected the sensor, the light is still on, jumped the contacts, the light is still on……could there be a broken wire?

I LIKE that readout and the info presented. I will have to get an ipad and get onboard the info train.

Jonathan

97 XL40 Royale #201

[Lars]

The coolant level sensor is not going to initiate a check engine light. You have another problem not associated with coolant level that initiates that light.

[Archived]

Hey Dan,

Thats funny stuff right there. But I learned something from making a comment on the level anyway. Have You noticed any other idiosyncrasies while using the RVdash Application ? I like the way You can edit the size of any specific gauge You want and move them around to Your liking.

BSafe,

Rocky

[Lars]

Nope, everything else works as it should. I’m sure yours shows more functions than mine, the app doesn’t read as much from my 94 as later models. I’m not positive, but mine might have been the first CC with a Series 60, I have one of the original CC brochures featuring my coach advertising the 60 motor.

[Archived]

Dan, if yours has the 5 speed HT755 transmission it is indeed one of the earliest Prevost coaches with a Series 60. If not, but instead has the 6 speed “world” transmission you do not have an early model.

[Archived]

Yup, she’s a 5 speed.