I would take on a short trip for a night are two to check it all out , speaking of that mine has been parked besides the house for 2 years last fall, have moved it up in the driveway and cleaned it inside and out, new tires and new battery, sitting and not useing can be harder on a camper than using every day, so I been told,
1987 ford f250 6.9 diesel
1997 Innsbruck by Gulf Stream 28ft fifth wheel with slide
and the wife and co-pilot Trudy
RV neglected for two years, around here they would turn loose a litter bug to make room to lock up someone who neglected a RV.
Just be careful when you start to clean it up. I killed 5 Black Widow Spiders and mine just sat over the winter.
My self I would pull the wheels and repack the wheel bearings if the unit sat that long. Having a bearing heat up and freeze would ruin your day.
Have a good trip.
2001 2500 Silverado LS 4x4 6.0, 4.10
2007 Jayco Eagle 288RLS
Cocktails for 6, Dinner for 4, Sleeps 2
End of dirt road, no signs in sight, sun going down: I am not lost, just getting ready to go camping.
If the tires on your Chevy are almost in need of replacing I'd put them on your 04 trailer. If not go find some 245 takeoffs and put them on the trailer. I just did this for $140 mounted on the 5er my kids use. The eight year old takeoffs that were on it were getting pretty slick. Buy a new battery.
This post is my opinion (free advice). It is not intended to influence anyone's judgment nor do I advocate anyone do what I propose.
When checking the tires make sure the valve stems are not cracked. If you kept the tires covered while stored you may not have a problem, but when just sitting for an extended period the valve stems could become brittle and leak.
I also agree with checking the bearings. Make an appt. with a tire store and have them check the tires, valve stems, bearings, and brakes. And everything all the other posters said.
You need to do a dry run of all systems. Check the items needed to bring it home--tires, brakes, etc. Get 'er home. fill tanks with water and wait for valves to have some liquid on them, then test those. Flush lines out with city water first, then if all's well, work the pump. If that's good, turn on water heater and check. Check all faucets, levers, valves, slides, etc, etc, cautiously and fix whatever isn't working properly as you go. Check inside for water damage. Lubricate where lubrication needs to be done. Turn on fridge and check gas, then electric. Operate AC(s) to ensure they cool. Get the gist? You need to run full systems analysis and assume something may be wrong as you go. If you're unsure how to do it, break down the systems on paper and ask us each item independently or use the search area on this forum.
We have just been through that, only our 5W had been sitting for 4 years. First thing we did was REPLACE the tires completely. We wouldn't even take it three blocks down the road first! Since the trailer was in storage 50 miles from the nearest tire store, it meant blocking up one side, removing both tires and the spare, taking them home to our tire store to be replaced, then repeating the process the next day for the other side.
When we plugged in to the truck: bad news. We could hardly see the lights. We inched home carefully, stopping 40 miles down the road when part of the skin of the slide decided to try to part company from the unit. Managed to tack that down (thanks to the help of a mobile RV guy with the right tools), and got home.
Come to find out that the lights weren't working because the converter had also given its life during the "down time". Once the converter got replaced, the lights etc worked well.
Another problem: the sink faucet's seal had rotted away. Fortunately we had anticipated that 4 years before, and the brand new faucet was sitting there in its box waiting to be installed. Needless to say, we asked our mechanic to please inspect the rubber from the NEW faucet - he said it was still factory new. What a relief!
Refrigerator - one always needs to make sure that works on both electricity and propane (ours was not a 3-way). Fire it up and see how she rolls.
I agree with the wheel packing and bearings suggestions. The only reason we didn't do that is because we were selling our unit once it was home and repaired.
Oh, another thing you could have - roof issues. Make a good roof inspection. And yet another one would be if any wood was exposed to air while the unit sat. We had to have our door rebuilt - the wood in the lower corner rotted away. The slide out, OTOH, managed to hang on.
This, btw, was a 1994 Fleetwood Wilderness 27'.
We're actually RV-less at the moment, but shopping for a truck camper. The kids have grown and it's time to downsize.