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DickandLois

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    Where ever the wheels stop ?
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    Taking broken things apart, because if there already broken I can't brake it and might learn how to fix whatever it might be! Trying to tie trout fly's, learned how years ago and with my love to learn something new let that skill slid away.

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  1. Rich could answer this better than I but I am betting this coach is Multiplexed on a Freighliner chassis I.e. it’s all module controlled and one is not waking up when the ignition is turned. Thanks Joe. LOL The Model year is right on the Knee of some major changes in the wiring systems. Hope it is more old school !! From the information in the Original Post. It sounds like everything is working and the leveling system is intermittent. That being the case one might check all the connections, in this case they are under the dash and it is a tight spot to work. Look for any loose ground connections, the devil is in the details! With a Meter check to see if the 12 volt supply is always supplied even when that system is not operating. Kind of a dead giveaway to a bad ground, or a loose connection at the control board. Rich.
  2. Keith! Been looking through some older systems used by HWH. Even though they mention the use of hydraulics for the slide rooms. There is no diagrams of how the manifolds are modified to accommodate the operation of this portion of the system. A number of items and drawings cover the 310 system you posted as being installed in your coach, but system changes appear to overlap. From what I have been reading it sounds like there are mechanical latches that keep the slide(s) securely held in place while moving, Because of that feature , it appears these latches can stop both the leveling jacks and the slide hydraulics. The switch you replaced. Was it supplied by HWH? and was the switch action the same as the OEM switch and the contacts where verified with a meter to match the OEM switch? Do you have any of the original manuals that came with the coach? If so what do they cover electrically and hydraulically? Rich. 310 HWH slide room information that might be relevant to the issue. There are a number of different hydraulic solenoid valves used on the systems built around the time your coach was built. AP0642 Valve. This valve was originally a Single wire valve. This valve has a T-handle for manual valve release. The single wire valve can be replaced with the RAP0642 and an adapter. This valve was used on (310, 325. These 2 systems in common), 610 and 625 along with early room extension systems. Until 2003, the large valves had a back emf diode installed in the valve. Because the necessary protection for the valves is now in the control box, the diode was removed. The small valves never had the back emf diode. Because this diode is still necessary in older systems, all replacement large valves have the diode.
  3. Thanks for the link Eric. That is what I was looking for ! Good information publication date was 2009. Rich.
  4. Thanks for the feedback! One more question, What is the model number of your display? Have not been able to find the one pictured on the Magnum web pages. The fact the your batteries are in the 6 year old range, things can change quickly from day to day. I just replaced both 31 series chassis batteries, one of them had a shorted out cell and the other one was still holding a good charge; but I changed them both out. The good one will become part of a power UPC system that will power things up during short power outages. I tend to re-purpose everything. LOL Rich.
  5. Eric. Coach battery sense'r reading"? Not sure what that is, or where to check? This is a picture of the sensor I mentioned. It is installed to help control the charge rate the batteries are receiving. This is the charger / Inverter manual link. Page 19 of the manual explains the sensor operation and proper location. https://www.nexusrv.com/fckimages/pdf/Magnum_Inverter_and_Charger_Manual.pdf This is a link to the Remote control operation manual. https://www.magnum-dimensions.com/sites/default/files/MagArchive/64-0003-Rev-D-ME-RC.pdf Rich.
  6. I would call it somewhat uncommon to happen on any chassis, but would indicate something unusual did happen. So checking the axle area and suspension for anything unusual would be in order. Rich.
  7. Welcome to the FMCA Forum ! The rear of the RV's is very common. The second one can be located on the entrance area or the hitch area when you'r parked. Always remember the forum does not consider any question(s) to be unworthy of being posted. That is why the Forum was created. Rich.
  8. Thinking you have an abnormal load on the charger, this is most often caused by a shorted 6 volt house battery or 2. The chassis battery can also place a high current load depending on how the charging circuit wiring is setup. What is the age of the current age of the batteries and how long has it been scene you have added distilled water to the batteries - if they are wet cell type. Also, what is the coach battery temperature sense'r reading. When the temperature drops the charge current also increases and you get a higher water evaporation rate. It might be time to check the hydrometer readings of the battery cells ! By chance is the engine block heater been left on? L-1 breaker is the common side of a 50 amp system used to power the charger / inverter and one heat pump, while L-2 breaker supplies a second heat pump setup. Rich.
  9. The filter number for the 8.1 L engine on our 2500 suburban is a NAPA 2487. it is mounted so the air intake MAP sensor is located between the filter and the intake manifold. If nothing else you will have an idea of what it might look like in your case. NOTE! If the air intake hose isn't secured and installed properly, the engine will have acceleration issues because of an incorrect fuel to air mixture. Performance is compromised. Rich.
  10. rreiner, Welcome to the FMCA Forum ! Thanks for your feedback. Your issue is one of the main reasons that it is so hard to pin issues down. Lack of the proper labeling regarding what fused circuits power what is difficult and it does happen in many makes and models. Rich.
  11. The best solution for the exhaust manifold issues for us was to install stainless steel ones. A little on the pricey side, but never had another issue with them failing. All the way to Alaska, around Canada and out west a number of times. The cast-iron stile headers where very prone to cracking if the bolts where to tight and the gaskets failed when things where to loose. A catch 22 issue. The S.S. stile was a true once and done deal for our Big Block. Rich.
  12. Old Beaver. There can be a thumping sound when the ride height is off, but the fact that the drive shaft was removed it sure sounds like you need a shop that deals with repairing and balancing drive shafts. They would know if the drive shaft was put back together out of phase . The one I have used for years in our area is Fleet Pride. They do have a number of locations, but I have no idea where you are located at the time. You can look up Drive shaft repair shops and locate one on the internet. Driving the coach with a problem drive shaft can cause an expansive repair bill, because that problem can also damage the axle drive shaft and or the transmission seals and bearings. The old saying - (A stitch in time saves nine) - does apply in you case !!!!! You did get the tires replace and the thump is still present, so it is not the tires that are causing the issue. Rich. Rocky mentioned the carrier bearing and this would be true on Gas powered chassis's, Except when the engines are mounted in the rear like you Beaver.
  13. Ditto, Ditto. We are on the same page. LOL Rich.
  14. Old beaver, The sound you are hearing sounds like the drive shaft could have been installed out of phase! The fact that it was towed to the service facility means the drive shaft was removed, if the tow truck driver did what needed to be done. Out of phase happens when the 2 universal joints are not lined up properly, because the shaft consists of 2 sections that have splines to connect the m. Sure sounds like your noise is cumming from that problem. More noticeable at highway speeds. Rich.
  15. Thanks for your feedback. Could you offer some mileage and driving conditions the 3 engines where exposed to that might have caused the intake manifold leak or if it was a material failure issue. Rich.
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