dickandlois

Ron ! I looked at some suppliers with the information you posted, but found nothing. You might try to contact Nova Hydraulics at the link below and see if they can offer any help. A Micro Controller is used to control the fan speed using data being sent by sensors. This is a software controlled system to help meet EPA standards. http://www.novahydraulics.com/contact.aspx?gclid=CM2zoIzWoMECFQ9p7Aod3lIARA Rich. Ron-- I did find this information regarding the possible sensors used in your system. Sauer-Danfoss 1090173 (liquid) and 1090174 (air) temperature sensors are thermistortype temperature sensors. Generally one sensor(1090174) is used for the CAC and two sensors are used for the radiator. One at the top and one at the bottom. Sense you have a 3 wire plug, I'm thinking you have just 2 sensors- one each for the CAC and radiator with a common ground.Both sensors read the same resistance at the same temperature. Using the chart below 70degF would = 21degC and you would read between 1.2k and close to 3k at 60 deg F. Measured temperature versus sensing element resistance Measured Temperature ºC Resistance Ω Nominal Tolerance 50deg C = 810.9 ± 5% 120degF 80deg C = 283.0 ± 5% 176degF 100deg C = 152.9 ± 8% 212degF 125deg C = 76.9 ± 8% 257degF The reading are different are close but Cat may have specked out a different supplier. You might contact them to get the real information. The fact that you have 3 pin connector and not a 6, and the fact that they are using only 4 pins(if in fact you only have four wire connected) according to your information. Having a 3 pin connection is not a reach.

jc21014, I use one of the extendable poles, like one uses to wash the coach. With the Velcro attaching system. Spray some silicon on a ends of the attached cloth and run it back and forth along the seal. This does require the side to be extended and the use of a 6ft. ladder in my case. Carefully working from both ends of the slide. Rich.

Bob, Welcome to the FMCA Forum! You did not mention if you have the owners manual, so this is a link to the 625 systems. http://www.hwh.com/ml35963.pdf Page 29 shows the pressure switches 50 lb and 3000lb. locations and the hydraulic plumbing. http://www.hwh.com/ml41240.pdf About the same Rich.

Bill, From your description, think you might try to spray some silicon on a cloth and wipe down all the seals. This would clean them and hopefully add some new life. I clean mine each year with some Protect-all and then wipe them down with a light coat of silicon. Rich.

Mypopsula. Yes, if you have a GFI that does not reset when on shore power- try to reset it on generator power. Should it reset then you know all is well with the coach wiring and there is an issue in your shore power circuit. Should everything else work then the GFI could have failed, should all the other circuits be working. Rich.

Mypopslou, Your coach has a 50 amp. service connection, so I'm thinking you may have lost you ground connection somewhere between the the coach and your 50 amp connection(maybe even at the house / riser). So, Will things work if you run the Generator? If not you could have an issue with the disconnect circuit or loose connection(s) in the coach wiring between the ground and neutral connections. Always work on the connections when disconnected from shore power and the generator an inverter off. Should things work when on the generator, run a complete test of all the shore cable connections and the transfer relay circuit. You might want to check and see if all the connections in the shore cable are tight and good connectivity between the cable ends, Coach connection point for the shore cable, connections on and around the disconnect circuit, circuit breaker panels and also the J box where the generator power interfaces with the Coach wiring. Things do loosen up while going down the road. Brett, was a little faster then me !!!! Rich.

Leary, Welcome to the FMCA forum ! This link might help! http://changingears.com/rv-sec-state-rv-license.shtml Rich.

Carl, Could you post a picture of your valve for the group? Then we would know how the valve is plumbed. Rich.

Gerald, by chance would you remember the part number for the plastic rail? or who made it? Rich.

Hi Andy, You know that you asked a loaded question for sure! I enjoyed your thoughts regarding fuel pump locations and filters. We always felt filters where ones best friend and inline pumps just made sense. The real fun was when we needed to install the extended range tanks to ferry planes across the big pond to Europe. I have wet bearings on the current coach and packed bearings on its predecessor. I packed the bearings with a mil. grade grease. They where always washed and hand packed, placing grease in the palm of one hand and using a twisting and rolling action to squeeze the grease into the bearings. Being a nut regarding maintenance, I always cleaned and repacked them at 25 K under general road conditions, but when the coach was driven under dusty or sandy conditions the self imposed limit was 12 K. Replacing all the bearing seals every time the bearings where packed. Not a complete answer to you question. Never knew how much to charge myself for labor. Rich.

Tim, From your description it sounds like the float switch you installed is turned 180 degrees. This would cause the switch to close when the jack(s) are down and to open when in the up position. You might try to rotate the switch 1/2 a turn and see if things work properly. Rich.

Bill, Just remember that the Bio jells at a higher temperature. The higher the B number the higher the jelling point temperature! The Bio has better lubricity so there is a trad off and it cleanse things better so extra fuel filters on hand might be in order. Rich.

Richy, Good to know that the info was helpful. I had to look around for the Catalog link, the one at the Denso sight has been blocked. So you might want the keep a copy in one of your files just to be on the safe side. The good thing is I also replaced the original link with the new one in my original post. All is well that ends well!! Thanks for your reply. Rich.

Richy, Look at this link. A Denso catalog covering the different parts and systems used on RV's http://www.rometruckparts.com/catalogs/DENSO%20RV%202012.pdf The different switch info on page 2 and wiring used for 4 and 5 wire systems on page 71(page 75 with Adobe) Rich.

Dana, Welcome to the FMCA Forum! Many safe and enjoyable travels! There are no stupid questions!!! We are all on a learning curve. Things are always changing and the forum members will always be willing to help and pass on some helpful information. Rich.

Jim and Brett, The issue of turbo temperature and how much time to allow for cool down is also an issue with many of the newer cars that use them to improve performance and increase mileage with decreased displacement. There have been incidents of turbo failure because the owners are not aware of the problem and in many cases there is no information regarding cool down in the owners manuals. Rich.

Richy, Welcome to the FMCA forum! I just posted this information on another thread: Contact Denso (248) 350-7500 and see if you need the listed adapter. Harness Adapter 059340-4041 Do you have a 5 or 4 wire connection on your wiper motor? They supply 2 different wiper control switches-number 550597-9010 and 550597-9020. The part numbers may have changed as your number does not match the information I have and I do not have any wiring information for your wiper circuit. Rich.

ObedB, Contact Denso (248) 350-7500 and see if you need the listed adapter. Harness Adapter 059340-4041 Do you have a 5 or 4 wire connection on your wiper motor? They supply 2 different wiper control switches-number 550597-9010 and 550597-9020. The part numbers may have changed as your number does not match the information I have and I do not have any wiring information for your wiper circuit. Rich.

ObedB,Could you post who's switch you install and a part number so I can look for any wiring information that might help. I will go through my files and see if I have any wiring info. on file for your coach. Rich.

Rob, Because I do not work for the coach company and with all the different materials used. How they are constructed causes pressure points that need to move. If things are to tight something is going to crack under the stress. You mentioned the mirror vibration and that could be an item of concern. They should be mounted so there is no movement at all and if its is moving, that movement will only increase over time and also allow water intrusion. Our Coach gowns as it heats up in the sun and also when the sun goes down also! If you can kind of pin point the location of the noise. A call to the coach builder might put your concern to rest, but it is always good to have some documentation should things go seriously wrong. The drivers side window frame(all of them are constructed of aluminum)have a small amount of expansion and contraction over a wide temperature range, Where fiberglass has a high degree of expansion and contraction over the same conditions. Rich.

Hi Paul, Brett is correct. I think that there is a relay in the circuit that activates when the exhaust brake is active. Fleetwood will be able to inform you of the relay location if you wish to deactivate that feature. Just make sure that it is done in a way that doesn't also turn off the brake lights or affect the cruse control circuit when you depress the brake pedal! Rich.

Ron, Welcome to the FMCA forum! My thought regarding the noise you hear, is that its coming from movement where the windshield and chassis seal meet. Movement is the seal / would cause both item number one, when the coach / house assembly releases stress as the unit twists and the same point would also be a point of stress re-leaf as the result of expansion and contraction caused by temperature changes. You might even be able to feel the vibration caused, if you place your hand on the area where the glass and wall structure meet. when the temperature drops. Not all materials expand and contract at the same rate. Rich.

Carl, While on the trip to Redmond and back, I found more then one location where the grade around the pumps was running down hill, from the back of the coach towards the front and fuel does not run up hill well! So, I turned the coach around and filled with the coach running up hill. On our coach that made a difference of 10 to 15 gallons more fuel in the tank. Brett, You left early and the wind delivered some colder air with some snow a few days later above 7000 ft. on our way back East. Glad we got out before the latest weather out in that area!!!! Sure hope its not a sign of a lot of snow this winter. I do not have the towed ready to go south and still have 2 or 3 other issues that need some tender loving care. LOL Rich.

Dean, Thanks for your information! I had to go back to your first post where you mentioned having a new engine with just 12,000 miles on it when the heating issue came up. Now you get to replace it again, under warranty. Hopefully the third engine is a charm. Just not a common to replace an engine twice! Did they give you any thoughts as to why your experiencing, what appears to be a continuing cooling problem? Maybe you could get a stipend and be an engine field test engineer, supply you with there OEM software and test equipment so you could file monthly engine readouts in a real world application. Good to hear they have been willing to work with you on this issue. Rich.

Starlingt, Finding good maintenance generally depends on the problem and with all the different systems built into today's coaches. There is not a one stop shop that covers everything and not all repair and maintenance centers are created equal. Posting a problem on the forum in one of the threads that closely matches your current problem or concern often generates a number of thoughts. With the number of members of FMCA being active on this sight and the geographical area they come from, one has a good chance of finding a location they would trust with the maintenance of there coach. There will be different thoughts as some locations are more familiar with some brands then others. Always ask other coach owners where they get items repaired and you might get a call some day from one of those owners asking you the same question, because they a travailing through your home area. I have always been a strong be-leaver in networking !! Rich.