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Old 12-03-2016, 12:14 PM   #1
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Location: Anacortes, WA
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Diesel pusher inactive for over one year

I have a 2007 40' Holiday rambler with a 330 cummins engine. The rig has been sitting without driving for over a year. I have run the engine and the generator several times but not often. As winter is approaching and I have concerns about a possible leak in the roof I have an appointment to take it to an RV repair shop to have it checked out.

I will also have the water system winterized although everything has been drained but I will rest easier with RV antifreeze protecting the water system - fresh and holding. The rig has a 12V winter water compartment heater but by having antifreeze in the systems I won't have to worry about water sitting where draining doesn't get it all out. Even paying someone to do this will probably be less expensive than keeping the thermostat set for the propane furnace to keep 40+ degrees in the coach to prevent freezing.

I am concerned with the lack of use and what precautions I should take before running it 20+ miles to the shop. I intend to refill propane and diesel on my trip to the shop and I will most likely drive more than the 20 miles just to get everything warmed up.

I am considering taking the rig to the international shop that I have used several times to have them check everything out and perhaps get an oil changed and have all filters checked and replaced as needed.

It is unconscionable to have let this rig sit for so long without use but sometimes life just gets ahead of us.

If any of you have suggestions I would appreciate any information that you can provide.
Beth, Lee and Buster (AKA Busticator, 14# King of All Pomeranians - Protector of His People)
2007 40' HR Ambassador & 2005 CR-V
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Old 12-03-2016, 01:33 PM   #2
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Location: Yuma Arizona USA
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Sounds like you have everything under control. About the only thing I would do different is if I couldn't move the coach I would not even start the engine. Exercising the generator under load is a must.
Brian, Loretta & Daisy (Golden Retriever)
2008 HR Endeavor 40 PDQ , ISL 400
2010 Dodge Ram 1500 Toad
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Old 12-03-2016, 02:17 PM   #3
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Location: North Florida
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When I purchased mine it had not been started or even gone inside for 3 years. After replacing chassis batteries, I removed engine ECM fuse, cranked engine for 30 or so seconds 3 or 4 times to get oil up to camshaft and valvetrain. Reinstall fuse and it started right up. .....did same with generator. I've ran it about 6k miles and all seems OK.
Thankfully there was no mice/rat damage to anything.

If I was in your situation, I'd check all tire psi, fluid levels, brake and turn lighting, drive a few miles and pull over somewhere safe and check engine compartment, walk-around coach to make sure ain't nothing stupid happening......
1999 American Eagle
ASE med/heavy certified technician
ASE advanced diesel certified
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Old 12-04-2016, 09:11 AM   #4
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I think you should be OK. Check tire pressure before heading out and give each tire a good inspection for cracks. Batteries and tires can go bad a lot faster by sitting than engine components. Once started, be sure the air bags inflate properly and air tank pressure is where it should be. Go slowly and bring it up to speed slowly and carefully. Good luck.
Bob & Joan Alexander, 2010 Tiffin Phaeton 36 QSH, 2013 Jeep Wrangler (toad)
Lobo & Juniper (woof, woof)
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Old 12-05-2016, 06:49 PM   #5
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Fuel might be an issue. How old is it? Maybe add an algaecide
2003 Scepter 40PDBB - Roadmaster RR8S - Cummins ISC350 - purch aug16
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