astmi Report post Posted April 12, 2014 My friend's RV has a Cummins ISB engine. When starting the engine there is a warning red light on in the dash. Oil is Ok, temp is OK, jacks are OK. Any idea of the possible cause of this warning? Share this post Link to post Share on other sites
lmsooter Report post Posted April 12, 2014 You might get more responses by posting the make and model of the RV. Is the light on with just the ignition on? Is the light on while trying to start? Does it stay on after starting and not go off at all? Hopefully Brett will see this post soon and have some specific ideas and questions. Share this post Link to post Share on other sites
elkhartjim Report post Posted April 12, 2014 There should be a symbol associated with the alarm. Is the alarm buzzer sounding too? Share this post Link to post Share on other sites
wolfe10 Report post Posted April 12, 2014 Sorry, I have no idea. Could be something like an "antenna up" or "slide out" warning, or could be something causing the engine to throw a code. If engine, first suspect is low coolant sensor (if it has one). Share this post Link to post Share on other sites
thomasp Report post Posted April 12, 2014 The red light indicates that the air bags are not full and as soon as the compressor finishes filling the air bags, the light goes out which means you can then drive the coach safely. Share this post Link to post Share on other sites
astmi Report post Posted April 13, 2014 I did not know we had air bags on class A RVs Share this post Link to post Share on other sites
dickandlois Report post Posted April 13, 2014 astmi, Could you post the make, model and year of the coach and the forum members can give you a more detailed answer. Rich. Share this post Link to post Share on other sites
elkhartjim Report post Posted April 13, 2014 I did not know we had air bags on class A RVs It would help if you could provide more info on the mh such as year, manufacturer and chassis. If it has a Cummins engine, we assume its on a Freightliner, Spartan or similar type chassis and they all have air bags. A previous post commented the "light" would go out once the air bags inflated; on my 2008 Freightliner chassis, the low air pressure light (with a symbol and audible alarm) goes off once the minimum air pressure is attainedin the tanks. I don't start to inflate my air bags until the air tanks have been pressurized. Can you tell us where the "light" is on the dash? Like I posted earlier, anytime a warning light comes on on my dash there is a symbol associated with the light or to say another way - the light is a symbol. Share this post Link to post Share on other sites
astmi Report post Posted April 13, 2014 it is a Holiday Rambler LaPalma, '05 Share this post Link to post Share on other sites
elkhartjim Report post Posted April 13, 2014 http://www.monacocoach.com/StaticFiles/monaco/brochures/2005/05Lapalma.pdf If this is what your friend owns, it has either a Ford or Workhorse motor. Share this post Link to post Share on other sites
astmi Report post Posted April 13, 2014 Jim, it is not a gas engine. It is a Cummins ISB Share this post Link to post Share on other sites
wolfe10 Report post Posted April 13, 2014 We really need more information. Is this on a FRED chassis (Freightliner Front Engine Diesel)? A diesel pusher? Air suspension? Share this post Link to post Share on other sites
astmi Report post Posted April 13, 2014 It is a Holiday Rambler LaPalma. So, this is a diesel pusher with air suspension Share this post Link to post Share on other sites
lmsooter Report post Posted April 13, 2014 I think I finally found the brochure for the motorhome. Monaco shows brochures for a 2006 and 2007 LaPalma Diesel. http://www.monacocoach.com/StaticFiles/monaco/brochures/2006/06Lapalmadiesel.pdf http://www.monacocoach.com/StaticFiles/monaco/brochures/2007/07Lapalmadiesel.pdf This is under the Monaco brand. Specs are Roadmaster RSR Rails Chassis Cummins ISB-AD 300 HP or 325 HP Allison 1000 MH Transmission Leaf Spring Suspension Diesel Pusher The Holiday Rambler site lists a 2006 and 2007 Vacationer Diesel which appears to be the equivalent of the LaPalma. http://www.holidayrambler.com/holidayrambler/brochures.html On my coach, when a light on the dash comes on, it backlights a description. Could that be the case with the LaPalma? Share this post Link to post Share on other sites
elkhartjim Report post Posted April 13, 2014 I'm so confused....but I know (hope) astmi will let us know the outcome. Share this post Link to post Share on other sites
